Prof. Dr. Michael Plum
- im Ruhestand
- Sprechstunden: nach Vereinbarung
- Raum: 3.028
CS 20.30 - Tel.: +49 721 608-42617
- michael plum ∂does-not-exist.kit edu
- Englerstraße 2
76131 Karlsruhe
Titel | Links | Typ |
---|---|---|
Wintersemester 2025/26 | ||
Spektraltheorie für Differentialoperatoren | Vorlesung (V) | |
Übungen zu 0100062 (Spektraltheorie für Differentialoperatoren) | Übung (Ü) |
Publikationen (komplette Liste)
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99.
mit D. E. Pelinovsky: Dynamics of the black soliton in a regularized nonlinear Schrödinger equation. Proceedings of the American Mathematical Society 152 (3), 1217-1231 (2024). https://doi.org/10.1090/proc/1663398.
mit R. Venkitakrishnan, Y. Augenstein, B. Zerulla, F. Z. Goffi und C. Rockstuhl: On the Physical Significance of Non-Local Material Parameters in Optical Metamaterials. New Journal of Physics 25 123014. https://iopscience.iop.org/article/10.1088/1367-2630/ad101097.
mit X. Liao: Eigenvalue analysis of the Lax operator for the one-dimensional cubic nonlinear defocusing Schrödinger equation. SIAM Journal on Mathematical Analysis 55 (6), 7399-7425 (2023). https://doi.org/10.1137/23M155023296.
mit W. Reichel: Breathers and Rogue Waves for Semilinear curl-curl Wave Equations. Journal of Elliptic and Parabolic Equations 9, 757-780 (2023). https://doi.org/10.1007/s41808-023-00215-x95.
mit D. E. Pelinovsky: Stability of black solitons in optical systems with intensity-dependent dispersion. SIAM Journal on Mathematical Analysis 56 (2), 2521-2568 (2024). https://doi.org/10.1137/23M1552838 ; arXiv 2022. https://doi.org/10.48550/arXiv.2205.1017794.
mit B. M. Brown, T. Dohnal und I. Wood: Spectrum of the Maxwell Equations for a Flat Interface between Homogeneous Dispersive Media. Communications in Mathematical Physics 406, 3 (2025). https://doi.org/10.1007/s00220-024-05154-993.
mit A. Khrabustovskyi: Operator estimates for homogenization of the Robin Laplacian in a perforated domain. Journal of Differential Equations 338, 474-517 (2022). https://doi.org/10.1016/j.jde.2022.08.00592.
mit F. Z. Goffi, A. Khrabustovskyi, R. Venkitakrishnan und C. Rockstuhl: Higher order constitutive relations and interface conditions for metamaterials with strong spatial dispersion. Physics Letters A 412, 127570 (2021). https://doi.org/10.1016/j.physleta.2021.12757091.
mit K. Tanaka, K. Sekine, M. Kashiwagi und S. Oishi: Rigorous numerical enclosures for positive solutions of Lane-Emden's equation with sub-square exponents. Numerical Functional Analysis and Optimization 43 (3), 322-349 (2022). https://www.tandfonline.com/doi/full/10.1080/01630563.2022.2029485 ; http://arxiv.org/abs/1607.0461990.
mit B. Fazekas und F. Pacella: Approximate nonradial solutions for the Lane-Emden problem in the ball. Adv. Nonlinear Anal. 11, 268-284 (2022). https://doi.org/10.1515/anona-2020-019189.
mit R. Venkitakrishnan, T. Höß, T. Repän, F. Z. Goffi und C. Rockstuhl: Lower limits for the homogenization of periodic metamaterials made from electric dipolar scatterers. Physical Review B 103, 195425 (2021). https://doi.org/10.1103/PhysRevB.103.19542588.
mit G. Alefeld und Ch. Wieners: Error bounds and enclosures: The development of numerical analysis and the impact of the contributions by Lothar Collatz. ZAMM 100, 1-8 (2020). https://doi.org/10.1002/zamm.20200204287.
mit J. Wunderlich: Computer-assisted Existence Proofs for One-dimensional Schrödinger-Poisson Systems. Acta Cybernetica 24, 373-391 (2020). https://doi.org/10.14232/actacyb.24.3.2020.686.
mit M. T. Nakao und Y. Watanabe: Numerical Verification Methods and Computer-Assisted Proofs for Partial Differential Equations. Springer Series in Computational Mathematics 53, Springer Singapore, 2019. https://doi.org/10.1007/978-981-13-7669-685.
mit F. Z. Goffi, K. Mnasri, C. Rockstuhl und A. Khrabustovskyi: Towards more general constitutive relations for metamaterials: A checklist for consistent formulations. Phys. Rev. B 101, 195411 (2020). https://doi.org/10.1103/PhysRevB.101.19541184.
mit K. Nagatou und P. J. McKenna: Orbital stability investigations for travelling waves in a nonlinearly supported beam. Journal of Differential Equations 268 (1), 80-114 (2019).https://doi.org/10.1016/j.jde.2019.08.00883.
mit B. M. Brown, V. Hoang, M. Radosz und I. Wood: Gap localization of TE-modes by arbitrarily weak defects - multiband case. J. London Math. Soc. (2) 00, 1-23 (2020). https://doi.org/10.1112/jlms.1233782.
mit K. Mnasri, F. Goffi und C. Rockstuhl: Homogenization of wire media with a general purpose nonlocal constitutive relation. J. Opt. Soc. Am. B 36 (8), pp. F99-F108 (2019). https://doi.org/10.1364/JOSAB.36.000F9981.
mit K. Mnasri, A. Khrabustovskyi und C. Rockstuhl: Retrieving effective material parameters of metamaterials characterized by nonlocal constitutive relations. Phys. Rev. B 99 (3), 035442 (2019). https://doi.org/10.1103/PhysRevB.99.03544280.
mit J. Feis, K. Mnasri, A. Khrabustovskyi, Ch. Stohrer und C. Rockstuhl: Surface plasmon polaritons sustained at the interface of a nonlocal metamaterial. Phys. Rev. B 98, 115409 (2018). https://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.11540979.
mit A. Khrabustovskyi, K. Mnasri, Ch. Stohrer und C. Rockstuhl: Beyond local effective material properties for metamaterials. Phys. Rev. B 97, 075439 (2018). https://doi.org/10.1103/PhysRevB.97.07543978.
mit A. Khrabustovskyi, K. Mnasri, Ch. Stohrer und C. Rockstuhl: Interface conditions for a metamaterial with strong spatial dispersion. http://arxiv.org/abs/1710.0367677.
mit A. Khrabustovskyi, K. Mnasri, Ch. Stohrer und C. Rockstuhl: Beyond local effective material properties for metamaterials. http://arxiv.org/abs/1705.10969v176.
mit A. Contreras und D. E. Pelinovsky: Orbital Stability of Domain Walls in Coupled Gross-Pitaevskii Systems. SIAM J. Math. Anal. 50, No. 1, 810-833 (2018). doi: 10.1137/17M1114892. http://arxiv.org/abs/1702.0070175.
mit W. Reichel: A breather construction for a semilinear curl-curl wave equation with radially symmetric coefficients. W. J. Elliptic Parabol. Equ. 2, 371-387 (2016). https://doi.org/10.1007/BF0337741074.
mit A. Khrabustovskyi: Spectral properties of elliptic operators with double-contrast coefficients near a hyperplane. Asymptotic Analysis 98, 91-130 (2016). https://doi.org/10.3233/ASY-16136373.
mit B. M. Brown, V. Hoang, M. Radosz und I. Wood: Gap localization of TE-Modes by arbitrarily weak defects. Journal of the London Mathematical Society (2) 95, no. 3, 942-962 (2017). https://doi.org/10.1112/jlms.1204672.
mit Y. Watanabe, K. Nagatou und M. T. Nakao: Norm bound computation for inverses of linear operators in Hilbert spaces. Journal of Differential Equations 260, 6363-6374 (2016). https://doi.org/10.1016/j.jde.2015.12.04171.
mit F. Pacella und D. Rütters: A computer-assisted existence proof for Emden's equation on an unbounded L-shaped domain. Communications in Contemporary Mathematics, Vol. 19, No. 2 (2017). http://doi.org/10.1142/S021919971750005570.
mit Th. Bartsch, T. Dohnal und W. Reichel: Ground states of a nonlinear curl-curl problem in cylindrically symmetric media. Nonlinear Differ. Equ. Appl. (2016) 23: 52. https://doi.org/10.1007/s00030-016-0403-069.
mit B. M. Brown, V. Hoang und I. Wood: Spectrum created by line defects in
periodic structures. Mathematische Nachrichten 287, Nr. 17-18, 1972-1985. https://doi.org/10.1002/mana.20130016568.
mit Y. Watanabe, K. Nagatou und M. T. Nakao: Verified Computations of Eigenvalue Exclosures for Eigenvalue Problems in Hilbert Spaces. SIAM J. Numer. Anal., Vol. 52, No. 2, 975-992, 2014. https://doi.org/10.1137/12089468367.
mit P. J. McKenna, F. Pacella und D. Roth: A Computer-Assisted Uniqueness Proof for a Semilinear Elliptic Boundary Value Problem. Inequalities and Applications 2010, International Series of Numerical Mathematics, Vol. 161, Part 1, 31-52, 2012. Artikel66.
mit C. Bandle, A. Gilanyi und L. Losonczi: Inequalities and Applications 2010 (Dedicated to the Memory of Wolfgang Walter), International Series of Numerical Mathematics, Vol. 161, Springer Basel, 2012. Buch65.
mit B. M. Brown, V. Hoang und I. Wood: On the spectrum of waveguides in planar photonic bandgap structures. Proceedings of the Royal Society of London A, 471: 20140673, http://dx.doi.org/10.1098/rspa.2014.067364.
mit T. Dohnal, K. Nagatou und W. Reichel: Interfaces supporting surface gap soliton ground states in the 1D nonlinear Schrödinger equation. Journal of Mathematical Analysis and Applications 407 (2013), pp. 425-435. http://doi.org/10.1016/j.jmaa.2013.05.02863.
mit K. Nagatou, M. T. Nakao und Y. Watanabe: A computer-assisted stability proof for the Orr-Sommerfeld problem with Poiseuille flow. Nonlinear Theory and Its Applications, IEICE 2, 123-127 (2011).62.
mit K. Nagatou und M. T. Nakao: Eigenvalue excluding for perturbed-periodic one-dimensional Schrödinger operators. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 468, Issue 2138 (2012), pp. 545-562. http://doi.org/10.1098/rspa.2011.0159 pdf61.
mit T. Dohnal und W. Reichel: Surface gap soliton ground states for the nonlinear Schrödinger equation. Comm. Math. Phys., Volume 308, Issue 2 (2011), 511-542; https://link.springer.com/article/10.1007/s00220-011-1320-z pdf60.
mit W. Dörfler, A. Lechleiter, G. Schneider und Ch. Wieners: Photonic Crystals: Mathematical Analysis and Numerical Approximation. Birkhäuser, 2010; Oberwolfach Seminars 42.59.
mit T. Dohnal und W. Reichel: Localized modes of the linear periodic Schrödinger operator with a nonlocal perturbation. SIAM J. Math. Anal., Volume 41, Issue 5 (2009), 1967-1993. pdf58.
mit B. M. Brown, V. Hoang und I. G. Wood: Floquet-Bloch Theory for Elliptic Problems with Discontinuous Coefficients. In: Spectral theory and analysis, 1–20, Oper. Theory Adv. Appl., 214, Birkhäuser/Springer, Basel, 2011.57.
mit P. J. McKenna, F. Pacella und D. Roth: A Uniqueness Result for a Semilinear Elliptic Problem: A Computer-assisted Proof. J. Differential Equations 247 (2009) 2140-2162; http://doi.org/10.1016/j.jde.2009.06.02356.
Computer-assisted Proofs for Semilinear Elliptic Boundary Value Problems. Japan Journal for Industrial and Applied Mathematics, Vol. 26, No. 2-3 (2009); http://doi.org/10.1007/BF0318654255.
mit V. Hoang und Ch. Wieners: A computer-assisted proof for photonic band gaps. Z. angew. Math. Phys. 60 (2009) 1035-1052; 0044-2275/09/061035-18; http://doi.org/10.1007/s00033-008-8021-254.
mit B. M. Brown, V. Hoang und I.G. Wood: On Spectral Bounds for Photonic Crystal Waveguides. In: Inequalities and Applications (C. Bandle, A. Gilànyi, L. Losonczi, Z. Pales, M. Plum eds.), International Series of Numerical Mathematics, Vol. 157, 23-30 (2009).53.
mit Y. Watanabe und M. T. Nakao: A computer-assisted instability proof for the Orr-Sommerfeld problem with Poiseuille flow. Z. Angew. Math. Mech. 89, No. 1, 5-18 (2009) http://doi.org/10.1002/zamm.20070015852.
Existence and Multiplicity Proofs for Semilinear Elliptic Boundary Value Problems by Computer Assistance. DMV Jahresbericht: JB 110, Heft 1 (2008) 19-54.
Download: emp.ps emp.pdf51.
mit W. N. Everitt, L. Markus und M. Muzzulini: A continuum of unusual selfadjoint linear partial differential operators.
Journal of Computational and Applied Mathematics 208, 164-175 (2007).50.
mit Ch. Wieners: Numerical enclosures for variational inequalities. Computational Methods in Applied Mathematics, Vol. 7, No. 4, 376-388 (2007).49.
mit B. Breuer, J. Horák und P. J. McKenna: A computer-assisted existence and multiplicity proof for travelling waves in a nonlinearly supported beam.
J. Differential Equations 224, 60-97 (2006).
Download: travelling.pdf48.
mit R. C. Brown: An Opial Type Inequality with an Integral Boundary Condition.
Proc. R. Soc. Lond. A 461, 2635-2651 (2005).
Download: opial_type.pdf47.
mit W. N. Everitt und L. Markus: An Unusual Self-Adjoint Linear Partial Differential Operator.
Trans. Amer. Math. Soc. 367, 1303-1324 (2005).
Download: self-adjoint.pdf46.
mit E. B. Davies: Spectral Pollution.
IMA Journal of Numerical Analysis 24, 417-438 (2004).45.
mit B. Breuer und P. J. McKenna: Multiple solutions for a semilinear boundary value problem: a computational multiplicity proof.
J. Differential Equations 195, 243-269 (2003).44.
mit B. M. Brown und W. D. Evans: Titchmarsh-Sims-Weyl theory for Complex Hamiltonian Systems.
Proc. London Math. Soc. (3) 87, 419-450 (2003).
Download: titchmarsh.pdf43.
mit J.-R. Lahmann: A computer-assisted instability proof for the Orr-Sommerfeld equation with Blasius profile.
ZAMM 84, No. 3, 188-204 (2004).
Download: orr-sommerfeld.pdf42.
mit E. Adams: Free Vibrations of Trusses by Fourier Decomposition, and Homotopy Methods for Nonlinear Matrix Eigenvalue Problems, I und II.
J. Math. Anal. Appl. 275, 333-353 (2002) und 276, 64-79 (2002).41.
mit Ch. Wieners: New solutions of the Gelfand problem.
J. Math. Anal. Appl. 269, 588-606 (2002).40.
mit Ch. Wieners: Optimal a priori estimates for interface problems.
Numer. Math. 95, 735-759 (2003).39.
mit P. J. McKenna: Multiple solutions for a semilinear boundary value problem: a computational multiplicity proof.
J. Math. Anal. Appl. 251, No. 2, 710-715 (2000).38.
mit B. Breuer und P. J. McKenna: Inclusions and Existence Proofs for Solutions of a Nonlinear Boundary Value Problem by Spectral Numerical Methods.
Computing Suppl. 15, 61-77 (2001).37.
mit Ch. Hipp: Optimal investment for investors with state dependent income, and for insurers.
Finance and Stochastics, Vol. 7, No. 3, 299-321 (2003).36.
Safe Numerical Error Bounds for Solutions of Nonlinear Elliptic Boundary Value Problems.
In: Symbolic Algebraic Methods and Verification Methods (Eds.: G. Alefeld, J. Rohn, S. Rump, T. Yamamoto), Springer Wien New York, 195-207 (2001).35.
mit Ch. Hipp: Optimal investment for insurers.
Insurance, Mathematics and Economics 27, 215-228 (2000).34.
mit H. Behnke, U. Mertins und Ch. Wieners: Eigenvalue inclusions via domain decomposition.
Proc. R. Soc. Lond. A 456, 2717-2730 (2000).33.
Computer-assisted Enclosure Methods for Elliptic Differential Equations.
Linear Algebra and its Applications 324, 147-187 (2001).32.
mit J. Lahmann: Das Spektrum der Orr-Sommerfeld-Gleichung mit Blasius-Strömungsprofil.
ZAMM 78, Suppl. 3, S987 - S988 (1998).31.
mit B. Breuer: Lösungseinschließungen bei einem nichtlinearen Randwertproblem mittels eines Fourierreihenansatzes.
Interner Bericht.30.
mit R. M. Redheffer: A Class of Second-order Differential Equations.
J. Differential Equations 154, 454-469 (1999).29.
mit J. Lahmann: On the spectrum of the Orr-Sommerfeld equation on the semi-axis.
Math. Nachr. 216, 145-153 (2000).28.
mit B. M. Brown, D. K. R. McCormack und W. D. Evans: On the spectrum of second order differential operators with complex coefficients.
Proc. Royal Soc. London. A 455, 1235-1257 (1999).27.
mit B. M. Brown, M. S. P. Eastham und D. K. R. McCormack: On a new algorithm for the computation of enclosures for the Titchmarsh-Weyl m-function.
Result. Math. 33, 50-64 (1998).26.
Eigenvalue Problems for Differential Equations.
In: Wavelets, Multilevel Methods and Elliptic PDEs (Eds.: M. Ainsworth , J. Levesley, M. Marletta, W.A. Light), Clarendon Press, Oxford, 39-83 (1997).25.
Guaranteed Numerical Bounds for Eigenvalues.
In: Spectral theory and computational methods of Sturm-Liouville problems (Eds.: D. Hinton, P. Schaefer), Marcel Dekker, New York, 313-332 (1997).24.
Enclosure Methods with Existence Proof for Elliptic Differential Equations. Proceedings zu "General Inequalities 7" (Oberwolfach 1995), International Series of Numerical Mathematics, Vol. 123, 347-368 (1997).23.
Enclosures for Two-Point Boundary Value Problems near Bifurcation Points.
In: Scientific Computing and Validated Numerics, Proceedings of the International Symposium on Scientific Computing, Computer Arithmetic and Validated Numerics SCAN-95, held in Wuppertal, Germany, September 26-29, 1995 (Eds.: G. Alefeld, A. Frommer,
B. Lang), Mathematical Research, Volume 90, Akademie Verlag, 265-279 (1996).22.
Existence Proofs for Elliptic Boundary Value Problems by Numerical Means.
ZAMM 75 SII, S429-S432 (1995).21.
Lösungseinschließung mit automatischem Existenzbeweis bei elliptischen Randwertproblemen.
In: Jahrbuch Überblicke Mathematik 1995 (Hrsg.: A. Beutelspacher, S.D. Chatterji,
U. Kulisch, R. Liedl), Vieweg Verlag, Braunschweig, 103 - 124 (1995).20.
Enclosures for Weak Solutions of Nonlinear Elliptic Boundary Value Problems.
In: Inequalities and Applications (Ed.: Ravi P. Agarwal), World Scientific Series In Applicable Analysis, Vol. 3, 505-521 (1994).19.
Inclusion Methods for Elliptic Boundary Value Problems.
In: Topics in Validated Computations (Ed.: J. Herzberger), Studies in Computational Mathematics 5, North Holland (Elsevier), Amsterdam, 323 - 379 (1994).18.
Existence and Enclosure Results for Continua of Solutions of Parameter-Dependent Nonlinear Boundary Value Problems.
Journal of Computational and Applied Mathematics 60, 187 - 200 (1995).17.
mit B. Kalkofen: Optimal Pricing Rules for Private-Value Auctions with Incomplete Information.
Ifo-Studien 1/1996, 77 - 100.16.
Enclosures for Solutions of Parameter-dependent Nonlinear Elliptic Boundary Value Problems: Theory and Implementation on a Parallel Computer.
Interval Computations 3 (Special Issue on Parallel Algorithms), 106 - 121 (1994).15.
mit B. M. Brown, W.D. Evans und V.G. Kirby: Safe numerical bounds for the Titchmarsh-Weyl m-function.
Mathematical Proceedings of the Cambridge Philosophical Society 113, 583-599 (1993).14.
An Existence and Inclusion Method for Two-Point Boundary Value Problems with Turning Points.
ZAMM 74, 615 - 623 (1994).13.
Numerical Existence Proofs and Explicit Bounds for Solutions of Nonlinear Elliptic Boundary Value Problems.
Computing 49, 25-44 (1992).12.
Characterization and Computation of Nash-Equilibria for Auctions with Incomplete Information.
International Journal of Game Theory 20, 393-418 (1992).11.
Continuous Sealed-bid Auctions with Asymmetric Incomplete Information.
Methods of Operations Research 63, 303-312.10.
Bounds for eigenvalues of second-order elliptic differential operators.
ZAMP 42, 848 - 863 (1991).9.
Existence proofs in combination with error bounds for approximate solutions of weakly nonlinear second-order elliptic boundary value problems.
ZAMM 71, T660 - T662 (1991).8.
Explicit H2-estimates and pointwise bounds for solutions of second-order elliptic boundary value problems.
J. Math. Anal. Appl. 165, 36-61 (1992).7.
Computer-assisted existence proofs for two-point boundary value problems.
Computing 46, 19-34 (1991).6.
Verified existence and inclusion results for two-point boundary value problems. IMACS Annals on Computing and Applied Mathematics, Baltzer, Vol. 7, 341-355 (1990).5.
mit M. Goehlen und J. Schröder: A Programmed Algorithm for Existence Proofs for Two-Point Boundary Value Problems. Computing 44, 91-132 (1990).4.
Existence and inclusion for two-point boundary value problems by numerical means. In: Computational Ordinary Differential Equations (Eds.: J. R. Cash, I. Gladwell), Clarendon Press, Oxford, 415-423 (1992).3.
Eigenvalue inclusions for second-order ordinary differential operators by a numerical homotopy method.
ZAMP 41, 205-226 (1990).2.
Shape-Invariant Bounds for Reaction-Diffusion Systems with Unequal Diffusion Coefficients.
J. Differential Equations 73, 82-103 (1988).1.
Pointwise Bounds for Linear Reaction-Diffusion Systems and an Extension to Nonlinear Problems.
J. Math. Anal. Appl. 135, 88-111 (1988)
Publikationsliste
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Spectrum of the Maxwell Equations for a Flat Interface Between Homogeneous Dispersive Media
Brown, M.; Dohnal, T.; Plum, M.; Wood, I.
2025. Communications in Mathematical Physics, 406 (1), Art.-Nr.: 3. doi:10.1007/s00220-024-05154-9
-
Stability of Black Solitons in Optical Systems with Intensity-Dependent Dispersion
Pelinovsky, D. E.; Plum, M.
2024. SIAM Journal on Mathematical Analysis, 56 (2), 2521–2568. doi:10.1137/23M1552838 -
Dynamics of the black soliton in a regularized nonlinear Schrödinger equation
Pelinovsky, D. E.; Plum, M.
2024. doi:10.48550/arXiv.2304.04823 -
Dynamics of the black soliton in a regularized nonlinear Schrödinger equation
Pelinovsky, D. E.; Plum, M.
2024. Proceedings of the American Mathematical Society, 152 (3), 1217 – 1231. doi:10.1090/proc/16633
-
Eigenvalue Analysis of the Lax Operator for the One-Dimensional Cubic nonlinear Defocusing Schrödinger Equation
Liao, X.; Plum, M.
2023. SIAM Journal on Mathematical Analysis, 55 (6), 7399–7425. doi:10.1137/23M1550232 -
On the physical significance of non-local material parameters in optical metamaterials
Venkitakrishnan, R.; Augenstein, Y.; Zerulla, B.; Goffi, F. Z.; Plum, M.; Rockstuhl, C.
2023. New Journal of Physics, 25 (12), Art.-Nr.: 123014. doi:10.1088/1367-2630/ad1010 -
Breathers and rogue waves for semilinear curl-curl wave equations
Plum, M.; Reichel, W.
2023. Journal of Elliptic and Parabolic Equations, 9 (2), 757–780. doi:10.1007/s41808-023-00215-x
-
Breathers and rogue waves for semilinear curl-curl wave equations
Plum, M.; Reichel, W.
2022. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000153722 -
Operator estimates for homogenization of the Robin Laplacian in a perforated domain
Khrabustovskyi, A.; Plum, M.
2022. Journal of Differential Equations, 338, 474–517. doi:10.1016/j.jde.2022.08.005 -
Eigenvalue analysis of the Lax operator for the one-dimensional cubic nonlinear defocusing Schrödinger equation
Liao, X.; Plum, M.
2022. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000148551 -
Rigorous Numerical Enclosures for Positive Solutions of Lane–Emden’s Equation with Sub-Square Exponents
Tanaka, K.; Plum, M.; Sekine, K.; Kashiwagi, M.; Oishi, S.
2022. Numerical Functional Analysis and Optimization, 43 (3), 322–349. doi:10.1080/01630563.2022.2029485
-
Higher order constitutive relations and interface conditions for metamaterials with strong spatial dispersion
Goffi, F. Z.; Khrabustovskyi, A.; Venkitakrishnan, R.; Rockstuhl, C.; Plum, M.
2021. Physics letters / A, 412, Art.-Nr.: 127570. doi:10.1016/j.physleta.2021.127570 -
Lower limits for the homogenization of periodic metamaterials made from electric dipolar scatterers
Venkitakrishnan, R.; Höß, T.; Repän, T.; Goffi, F. Z.; Plum, M.; Rockstuhl, C.
2021. Physical Review B, 103 (19), 195425. doi:10.1103/PhysRevB.103.195425 -
Approximate nonradial solutions for the Lane-Emden problem in the ball
Fazekas, B.; Pacella, F.; Plum, M.
2021. Advances in Nonlinear Analysis, 11 (1), 268–284. doi:10.1515/anona-2020-0191
-
Higher order constitutive relations and interface conditions for metamaterials with strong spatial dispersion
Goffi, F. Z.; Khrabustovskyi, A.; Venkitakrishnan, R.; Rockstuhl, C.; Plum, M.
2020. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000127295 -
Error bounds and enclosures: The development of numerical analysis and the impact of the contributions by Lothar Collatz
Alefeld, G.; Plum, M.; Wieners, C.
2020. ZAMM, 100 (10), Art.-Nr.: e202002042. doi:10.1002/zamm.202002042 -
Towards more general constitutive relations for metamaterials: A checklist for consistent formulations
Goffi, F. Z.; Mnasri, K.; Plum, M.; Rockstuhl, C.; Khrabustovskyi, A.
2020. Physical review / B, 101 (19), Art.Nr.: 195411. doi:10.1103/PhysRevB.101.195411
-
Homogenization of wire media with a general purpose nonlocal constitutive relation
Mnasri, K.; Goffi, F. Z.; Plum, M.; Rockstuhl, C.
2019. Journal of the Optical Society of America / B, 36 (8), F99-F108. doi:10.1364/JOSAB.36.000F99 -
Towards more general constitutive relations for metamaterials: a checklist for consistent formulations
Goffi, F. Z.; Mnasri, K.; Plum, M.; Rockstuhl, C.; Khrabustovskyi, A.
2019. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000104493 -
Retrieving effective material parameters of metamaterials characterized by nonlocal constitutive relations
Mnasri, K.; Khrabustovskyi, A.; Plum, M.; Rockstuhl, C.
2019. Physical review / B, 99 (3), 035442. doi:10.1103/PhysRevB.99.035442
-
Orbital Stability of Domain Walls in Coupled Gross--Pitaevskii Systems
Contreras, A.; Pelinovsky, D. E.; Plum, M.
2018. SIAM journal on mathematical analysis, 50 (1), 810–833. doi:10.1137/17M1114892 -
Surface plasmon polaritons sustained at the interface of a nonlocal metamaterial
Feis, J.; Mnasri, K.; Khrabustovskyi, A.; Stohrer, C.; Plum, M.; Rockstuhl, C.
2018. Physical review / B, 98 (11), Article No.115409. doi:10.1103/PhysRevB.98.115409
-
Interface conditions for a metamaterial with strong spatial dispersion
Khrabustovskyi, A.; Mnasri, K.; Plum, M.; Stohrer, C.; Rockstuhl, C.
2017. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000075655 -
Beyond local effective material properties for metamaterials
Mnasri, K.; Khrabustovskyi, A.; Stohrer, C.; Plum, M.; Rockstuhl, C.
2017. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000070949
-
Ground states of a nonlinear curl-curl problem in cylindrically symmetric media
Bartsch, T.; Dohnal, T.; Plum, M.; Reichel, W.
2016. Nonlinear differential equations and applications, 2016 (23), 52/1–34. doi:10.1007/s00030-016-0403-0 -
A breather construction for a semilinear curl-curlwave equation with radially symmetric coefficients
Plum, M.; Reichel, W.
2016. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000060946 -
Spectral properties of an elliptic operator with double-contrast coefficients near a hyperplane
Khrabustovskyi, A.; Plum, M.
2016. Asymptotic analysis, 98 (1-2), 91–130. doi:10.3233/ASY-161363 -
Norm bound computation for inverses of linear operators in Hilbert spaces
Watanabe, Y.; Nagatou, K.; Plum, M.; Nakao, M. T.
2016. Journal of Differential Equations, 260 (7), 6363–6374. doi:10.1016/j.jde.2015.12.041
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Spectral properties of elliptic operator with double-contrast coefficients near a hyperplane
Khrabustovskyi, A.; Plum, M.
2015. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000050409
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Computer-assisted proofs for semilinear elliptic boundary value problems
Plum, M.
2009. Japan Journal of Industrial and Applied Mathematics, 26 (2-3), 419–443 -
On spectral bounds for photonic crystal waveguides
Plum, M.; Brown, M.; Hoang, V.; Wood, I.
2009. Inequalities and applications. Ed.: C. Bandle, 23–30, Birkhäuser Verlag
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Localized modes of the linear periodic Schrödinger Operator with a nonlocal perturbation
Dohnal, T.; Plum, M.; Reichel, W.
2008. Universität Karlsruhe (TH). doi:10.5445/IR/1000009828 -
A computer-assisted proof for photonic band gaps
Hoang, V.; Plum, M.; Wieners, C.
2008. Universität Karlsruhe (TH). doi:10.5445/IR/1000007941
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Numerical enclosures for variations inequalities
Wieners, C.; Plum, M.
2007. Computational Methods in Applied Mathematics, 7 (4), 376–388 -
A continuum of unusual self-adjoint linear partial differential operators
Plum, M.; Everitt, W. N.; Markus, L.; Muzzulini, M.; McKenna, J. M.
2007. Journal of Computational and Applied Mathematics, 208, 164–175 -
Existence and Multiplicity Proofs for Semilinear Elliptic Boundary Value Problems by Computer Assistance
Plum, M.
2007. Universität Karlsruhe (TH)
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A computer-assisted existence and multiplicity proof for travelling waves in a nonlinearly supported beam
Plum, M.; Breuer, B.; Horak, J.; McKenna, J. M.
2006. Journal of Differential Equations, 224, 60–97
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Enclosures for variational inequalities
Plum, M.; Wieners, C.
2005. Inst. f. Wiss. Rechnen u. Math. Modellbildung -
An unusual self-adjoint linear partial differential operator
Plum, M.; Everitt, W. N.; Markus, L.
2005. Transactions of the American Mathematical Society, 357, 1303–1324
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A computer-assisted instability proof for the Orr-Sommerfeld equation with Blasius profile
Plum, M.; Lahmann, J.-R.
2004. Zeitschrift für angewandte Mathematik und Mechanik, 84 (3), 188–204 -
An Opial-type inequality with an integral boundary condition
Brown, R. C.; Plum, M.
2004. Universität Karlsruhe (TH)
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An unusual self-adjoint linear partial differential operator
Everitt, W. N.; Markus, L.; Plum, M.
2003. Karlsruhe 2003. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2003,7.) -
Multiple solutions for a semilinear boundary value problem: a computational multiplicity proof
Plum, M.; Breuer, B.; McKenna, P. J.
2003. Journal of differential equations, 195 (1), 243–269 -
Titchmarsh-Sims-Weyl theory for complex hamiltonian systems
Plum, M.; Brown, B. M.; Evans, W. D.
2003. Proceedings of the London Mathematical Society, 87 (2), 419–450 -
Optimal a priori estimates for interface problems
Plum, M.; Wieners, C.
2003. Numerische Mathematik, 95 (4), 735–759. doi:10.1007/s002110200395 -
Optimal investment for investors with state dependent income, and for insurers
Plum, M.; Hipp, C.
2003. Finance and stochastics, 7 (3), 299–321
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New solutions of the Gelfand problem
Plum, M.; Wieners, C.
2002. Journal of mathematical analysis and applications, 269 (2), 588–606. doi:10.1016/S0022-247X(02)00038-0 -
A computer-assisted instability proof for the Orr-Sommerfeld equation with Blasius profile
Lahmann, J.-R.; Plum, M.
2002. Karlsruhe 2002. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2002,8.) -
Free vibrations of trusses by Fourier decomposition, and homotopy methods for nonlinear matrix eigenvalue problems
Adams, E.; Plum, M.
2002. Karlsruhe 2002. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2002,7.) -
Inclusions and existence proofs for solutions of a nonlinear boundary value problem by spectral numerical methods
Plum, M.; Breuer, B.; Mckenna, P. J.
2002. In: Topics in numerical analysis with special emphasis on nonlinear problems. Ed.: G. Alefeld. Wien 2001. S. 61-77. (Computing Supplementum. 15.) -
Titchmarsh-Sims-Weyl theory for complex Hamiltonian systems
Brown, B. M.; Evans, W. D.; Plum, M.
2002. Karlsruhe 2002. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2002,16.) -
New solutions of the Gelfand problem
Plum, M.; Wieners, C.
2002. Karlsruhe 2002. Preprint. Fakultät für Mathematik, Universität Karlsruhe, 2002 (11) -
Free vibrations of trusses by fourier decomposition, and homotopy methods for nonlinear matrix eigenvalue problems. Tl. 2
Plum, M.; Adams, E.
2002. Journal of mathematical analysis and applications, 276, 64–79 -
Free vibrations of trusses by fourier decomposition, and homotopy methods for nonlinear matrix eigenvalue problems. Tl. 1
Plum, M.; Adams, E.
2002. Journal of mathematical analysis and applications, 275, 333–353
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Optimal a priori estimates for interface problems
Plum, M.; Wieners, C.
2001. Karlsruhe 2001. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2001,4.) -
Optimal investment for investors with state dependent income, and for insurers
Hipp, C.; Plum, M.
2001. Karlsruhe 2001. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2001,3.) -
Computer assisted enclosure methods for elliptic differential equations
Plum, M.
2001. Linear Algebra and its Applications, 324 (1-3), 147–187 -
Inclusions and existence proofs for solutions of a nonlinear boundary value problem by spectral numerical methods
Breuer, B.; Plum, M.; Mckenna, P. J.
2001. Karlsruhe 2001. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2001,7.)
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On the spectrum of the Orr-Sommerfeld equation on the semiaxis
Lahmann, J.-R.; Plum, M.
2000. Math. Nachr. 216 (2000) S. 145-153 -
Safe numerical error bounds for solutions of nonlinear elliptic boundary value problems
Plum, M.
2000. Karlsruhe 2000. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2000,23.) -
Optimal investment for insurers
Hipp, C.; Plum, M.
2000. Karlsruhe 2000. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2000,5.) und Insurance: math. and econom. 27 (2000) S. 215-228 -
Eigenvalue inclusions via domain decomposition
Behnke, H.; Plum, M.; Mertins, U.; Wieners, C.
2000. Karlsruhe 2000. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 2000,4.) und Proc. of the Roy. Soc. of Lond. A 456 (2000) S. 2717-2730 -
Guaranteed numerical bounds for eigenvalues
Plum, M.
2000. Karlsruhe 1999. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 1999,14.) -
On the spectrum of second order differential operators with complex coefficients
Brown, B. M.; Mccormack, D. K. R.; Evans, W. D.; Plum, M.
2000. Karlsruhe 1999. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 1999,13.) -
A class of second-order differential equations
Plum, M.; Redheffer, R. M.
2000. Karlsruhe 1999. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 1999,9.) -
Multiple solutions for a semilinear boudary value problem: a computational multiplicity proof
Plum, M.; McKenna, P. J.
2000. Journal of mathematical analysis and applications, 251 (2), 710–715
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On the spectrum of second-order differential operators with complex coefficients
Brown, B. M.; Mccormack, D. K. R.; Evans, W. D.; Plum, M.
1999. Proc. of the Roy. Soc. of Lond. A 455 (1999) S. 1235-1257 -
A class of second-order differential equations
Plum, M.; Redheffer, R. M.
1999. J. of differential equat. 154 (1999) S. 454-469
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On the spectrum of the Orr-Sommerfeld equation on the semiaxis
Lahmann, J.-R.; Plum, M.
1998. Karlsruhe 1998. (Preprint. Fakultät für Mathematik, Universität Karlsruhe. 1998,19.) -
Lösungseinschließungen bei einem nichtlinearen Randwertproblem mittels eines Fourierreihenansatzes
Breuer, B.; Plum, M.
1998. Universität Karlsruhe (TH) -
Das Spektrum der Orr-Sommerfeld-Gleichung mit Blasius-Strömungsprofil
Lahmann, J.-R.; Plum, M.
1998. Z. f. angew. Math. u. Mech. 78 (1998) Suppl. 3 S. S987-S988 -
On a new algorithm for computing enclosures for the Titchmarsh-Weyl m-function
Plum, M.; Brown, B. M.; Eastham, M. S. P.; Mccormack, D. K. R.
1998. Results in math. 33 (1998) S. 50-64 -
Eigenvalue problems for differential equations
Plum, M.
1998. In: Wavelets, multilevel methods, and elliptic PDEs. Ed.: M. Ainsworth. Oxford 1997. S. 39-83
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Guaranteed numerical bounds for eigenvalues
Plum, M.
1997. In: Spectral theory and computational methods of Sturm-Liouville problems. Ed.: D. Hinton. New York 1997. S. 313-332. (Lecture notes in pure and applied mathematics. 191.) -
Enclosure methods with existence proof for elliptic differential equations
Plum, M.
1997. In: General inequalities 7. 7th International Conference, Oberwolfach 1995. Ed.: C. Bandle. Basel 1997. S. 347-368. (International series of numerical mathematics. 123.)
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Optimal pricing rules for private-value auctions with incomplete information
Plum, M.; Kalkofen, B.
1996. Ifo-Stud. 42 (1996) H. 1 S. 77-100 -
Enclosures for two-point boundary value problems near bifurcation points
Plum, M.
1996. In: Scientific computing and validated numerics. SCAN-95. Ed.: G. Alefeld. Berlin 1996. S. 265-279. (Mathematical research. 90.)