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  • 1.
    Beilina, Larissa
    et al.
    Chalmers University, Gothenburg University.
    Shestopalov, YuriKarlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Inverse problems and large-scale computations2013Proceedings (redaktörskap) (Refereegranskat)
  • 2.
    Derevyanchuk, E.
    et al.
    Russia .
    Smirnov, Yurij
    Russia.
    Shestopalov, Yuri
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Permittivity determination of thin multi-sectional diaphragms in a rectangular waveguide2013Ingår i: Proceedings of the International Conference Days on Diffraction 2013, 2013, s. 32-35, artikel-id 6712799Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper we consider the inverse problem of the permittivity determination of thin multisectional diaphragm in a rectangular waveguide. We perform a detailed analysis for one-, two- and three-sectional thin diaphragms. Numerical results are presented.

  • 3.
    Fuchs, Jürgen
    et al.
    Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Avdelningen för fysik och elektroteknik.
    Stolin, AlexanderAbramov, ViktorPaal, EugenShestopalov, YouriSilvestrov, Sergei
    Algebra, Geometry, and Mathematical Physics 20102012Proceedings (redaktörskap) (Refereegranskat)
  • 4. Il'inskij, A.
    et al.
    Chernokozhin, E.
    Shestopalov, Youri
    Development of Operator Methods for the Problem of Normal Waves in Coupled Microstrip Lines with Multilayered Substrate1984Ingår i: Mathematical Models of Applied Electrodynamics, pp. 116-136, Moscow: Moscow State Univ. Publ. House , 1984Kapitel i bok, del av antologi (Refereegranskat)
  • 5.
    Karchevskiy, Evgueni
    et al.
    Russia.
    Shestopalov, Yuri
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Mathematical and numerical analysis of dielectric waveguides by the integral equation method2013Ingår i: Progress in Electromagnetics Research Symposium, ISSN 1559-9450, s. 388-393Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The eigenvalue problems for generalized natural modes of an inhomogeneous dielectric waveguide without a sharp boundary and a step-index dielectric waveguide with a smooth boundary of cross-section are formulated as problems for the set of time-harmonic Maxwell equations with partial radiation conditions at infinity in the cross-sectional plane. The original problems are reduced by the integral equation method to nonlinear spectral problems with Fredholm integral operators. Properties of the spectrum are investigated. The Galerkin and collocation methods for the calculations of generalized natural modes are proposed and convergence of the methods is proved. Some results of numerical experiments are discussed.

  • 6. Kotik, N.
    et al.
    Shestopalov, Youri
    Approximate decomposition for the solution of boundary value problems for elliptic systems arising in mathematical models of layered structures2006Ingår i: Proc. Progress in Electromagnetics Research Symposium, Cambridge MA, USA, March 27-31,2006, pp. 514518Artikel i tidskrift (Refereegranskat)
  • 7. Kotik, Nikolai
    et al.
    Lestelius, Magnus
    Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Avdelningen för kemiteknik. Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Paper Surface Centre. Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Materialvetenskap.
    Shestopalov, Youri
    Modelling and Simulation of the Printing Plate-Contact System2006Konferensbidrag (Refereegranskat)
  • 8.
    Podlipenko, Yury
    et al.
    Russia.
    Shestopalov, Yuri
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Guaranteed Estimates of Functionals from Solutions and Data of Interior Maxwell Problems Under Uncertainties2013Ingår i: Springer Proceedings in Mathematics & statistics, ISSN 2194-1017, E-ISSN 2194-1009, Vol. 52, s. 135-167Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We are looking for linear with respect to observations optimal estimates of solutions and right-hand sides of Maxwell equations called minimax or guaranteed estimates. We develop constructive methods for finding these estimates and estimation errors which are expressed in terms of solutions to special variational equations and prove that Galerkin approximations of the obtained variational equations converge to their exact solutions. © Springer International Publishing Switzerland 2013.

  • 9.
    Samokhin, Alexander
    et al.
    Moscow State Tech Univ Radio Engn & Automat, Moscow 117648, Russia..
    Shestopalov, Youri
    Karlstads universitet, Institutionen för ingenjörsvetenskap, fysik och matematik.
    Kobayashi, Kazuya
    Chuo Univ, Bunkyo Ku, Tokyo 1128551, Japan.
    Stationary iteration methods for solving 3D electromagnetic scattering problems2013Ingår i: Applied Mathematics and Computation, ISSN 0096-3003, E-ISSN 1873-5649, Vol. 222, s. 107-122Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Generalized Chebyshev iteration (GCI) applied for solving linear equations with nonselfadjoint operators is considered. Sufficient conditions providing the convergence of iterations imposed on the domain of localization of the spectrum on the complex plane are obtained. A minimax problem for the determination of optimal complex iteration parameters is formulated. An algorithm of finding an optimal iteration parameter in the case of arbitrary location of the operator spectrum on the complex plane is constructed for the generalized simple iteration method. The results are applied to numerical solution of volume singular integral equations (VSIEs) associated with the problems of the mathematical theory of wave diffraction by 3D dielectric bodies. In particular, the domain of the spectrum location is described explicitly for low-frequency scattering problems and in the general case. The obtained results are discussed and recommendations concerning their applications are given. (C) 2013 Elsevier Inc. All rights reserved.

  • 10. Schuermann, H.W.
    et al.
    Serov, V.S.
    Shestopalov, Youri
    Solutions to the Helmholtz equation for TE-guided waves in a three-layer structure with Kerr-type nonlinearity,2002Ingår i: J. Phys. A: Math. Gen., vol. 35, 50, pp. 10789-10801 (2002)Artikel i tidskrift (Refereegranskat)
  • 11. Shestopalov, Youri
    A Method of Calculating the Characteristic Numbers of a Meromorphic Operator-Function1985Ingår i: Zh. Vych. Matem. Matem. Fiz., 1985, Vol. 25, no 9, pp. 1413-1416Artikel i tidskrift (Refereegranskat)
  • 12. Shestopalov, Youri
    Advances in Mathematical Methods for Electromagnetics: Nonlinear Problems and Nonselfadjoint Operator Theory2006Konferensbidrag (Refereegranskat)
  • 13. Shestopalov, Youri
    Application of the Method of Generalized Potentials in Some Problems of Wave Propagation and Diffraction1990Ingår i: Zh. Vych. Matem. Matem. Fiz., 1990, Vol. 30, no 7, pp. 1081-1092Artikel i tidskrift (Refereegranskat)
  • 14. Shestopalov, Youri
    Approximate decomposition for the solution of impedance boundary value problems of electromagnetics2007Konferensbidrag (Refereegranskat)
  • 15. Shestopalov, Youri
    High-Q and Low-Q Resonators: Methods, Results, and Perspectives1998Konferensbidrag (Refereegranskat)
  • 16. Shestopalov, Youri
    Interaction of Oscillations in Slotted Resonators2001Konferensbidrag (Refereegranskat)
  • 17. Shestopalov, Youri
    Justification of a Method for Calculating the Normal Waves1979Ingår i: Vestnik Mosk. Gos. Univ., 1979, ser. 15, no 1, pp. 14-20Artikel i tidskrift (Refereegranskat)
  • 18. Shestopalov, Youri
    Justification of the Spectral Method for Calculating Normal Waves of Transmission Lines1980Ingår i: Diff. Uravn., 1980, Vol. 16, no 8, pp. 1504-1512Artikel i tidskrift (Refereegranskat)
  • 19. Shestopalov, Youri
    Nonlinear Eigenvalue Problems in Electrodynamics1993Ingår i: Electromagnetics, 1993, Vol. 13, no 2, pp. 5-18Artikel i tidskrift (Refereegranskat)
  • 20. Shestopalov, Youri
    Nonselfadjoint boundary eigenvalue problems of electromagnetics in open domains2007Konferensbidrag (Refereegranskat)
  • 21. Shestopalov, Youri
    Normal Modes of Bare and Shielded Slot Lines Formed by Domains of Arbitrary Cross Section1986Ingår i: Dokl. Akad. Nauk SSSR, 1986, Vol. 289, no 4, pp. 616-618Artikel i tidskrift (Refereegranskat)
  • 22. Shestopalov, Youri
    On a Spectrum of the Family of Nonselfadjoint Boundary Value Problems for the System of Helmholtz Equations1981Ingår i: Zh. Vych. Matem. Matem. Fiz., 1981, Vol. 21, no 6, pp. 1459--1470Artikel i tidskrift (Refereegranskat)
  • 23.
    Shestopalov, Youri
    Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Avdelningen för matematik.
    On Explicit Solutions to the Problem of Plane Wave Diffraction by Kerr-type Nonlinear Dielectric Layer2009Ingår i: Proceedings of the PIER Symposium, Cambridge, MA: EM Academy (MIT) , 2009, s. 774-Konferensbidrag (Refereegranskat)
  • 24. Shestopalov, Youri
    On the Theory of Cylindrical Resonators1991Ingår i: Math. Methods in the Applied Sciences, 1991, Vol. 14, pp. 355-375Artikel i tidskrift (Refereegranskat)
  • 25. Shestopalov, Youri
    Potential Theory for the Helmholtz Operator and Nonlinear Eigenvalue Problems1992Ingår i: Potential Theory, pp. 281-290 / [ed] M. Kishi, Berlin, New York: W. de Gruyter , 1992Kapitel i bok, del av antologi (Refereegranskat)
  • 26. Shestopalov, Youri
    Properties of the Spectrum of a Class of Nonselfadjoint Boundary Value Problems for the Systems of Helmholtz Equations1980Ingår i: Dokl. Akad. Nauk SSSR, 1980, Vol. 252, no 5, pp. 1108--1111Artikel i tidskrift (Refereegranskat)
  • 27. Shestopalov, Youri
    Resonance Scattering by a Dielectric Cylinder2005Ingår i: J. Comm. Tech. Elec., 2005, Vol. 50, no 2, pp. 172-179Artikel i tidskrift (Refereegranskat)
  • 28. Shestopalov, Youri
    Scattering from a Thin Rectangular Dielectric Cylinder2003Konferensbidrag (Refereegranskat)
  • 29. Shestopalov, Youri
    Scattering Frequencies in Planar Domains with Noncompact Boundaries1997Ingår i: Modern Mathematical Methods in Diffraction Theory and its Applications in Engineering, pp. 227-233 / [ed] E. Meister, Frankfurt am Main: Peter Lang , 1997Kapitel i bok, del av antologi (Refereegranskat)
  • 30. Shestopalov, Youri
    Scattering Frequencies of a Thin Rectangular Dielectric Cylinder2004Konferensbidrag (Refereegranskat)
  • 31. Shestopalov, Youri
    Seminars on Numerical Analysis1996Bok (Refereegranskat)
  • 32. Shestopalov, Youri
    Solitary waves in unbounded cubic-nonlinear media2005Konferensbidrag (Refereegranskat)
  • 33. Shestopalov, Youri
    Study of Spectral Problems of the Theory of Wave Propagation in the Complete Electrodynamical Statement1985Ingår i: Dokl. Akad. Nauk SSSR, 1985, Vol. 280, no 6, pp. 1235-1239Artikel i tidskrift (Refereegranskat)
  • 34. Shestopalov, Youri
    The Discrete Spectrum of Natural Waves of a Screened Open Slot Line1983Ingår i: USSR Comp. Maths. Math. Phys., 1983, Vol. 23, no 6, pp. 67-74Artikel i tidskrift (Refereegranskat)
  • 35. Shestopalov, Youri
    Theory of Nonselfadjoint Operator-Valued Functions and the Development of Mathematical Methods for Electromagnetics2006Konferensbidrag (Refereegranskat)
  • 36. Shestopalov, Youri
    et al.
    Chernokozhin, E.
    Boundary Integral Equations as Operator-valued Functions of Complex Frequency Parameter with Applications to the Wave Scattering1997Konferensbidrag (Refereegranskat)
  • 37. Shestopalov, Youri
    et al.
    Chernokozhin, E.
    Fredholm Property of an Integral Operator with the Kernel Having a Weak Singularity1982Ingår i: Vestnik Mosk. Gos. Univ., 1982, Ser. 15, no 1, pp.23-28Artikel i tidskrift (Refereegranskat)
  • 38. Shestopalov, Youri
    et al.
    Chernokozhin, E.
    Mathematical Methods for the Study of Wave Scattering by Open Cylindrical Structures1997Ingår i: J. Comm. Tech. Elec., 1997, Vol. 42, no 11, pp. 1211-1223Artikel i tidskrift (Refereegranskat)
  • 39. Shestopalov, Youri
    et al.
    Chernokozhin, E.
    Resonant and Nonresonant Diffraction by Open Image-type Slotted Structures2001Ingår i: IEEE Trans. Antennas Propag., 2001, Vol. 49, no 5, pp. 793-801Artikel i tidskrift (Refereegranskat)
  • 40. Shestopalov, Youri
    et al.
    Chernokozhin, E.
    Solvability of Boundary Value Problems for the Helmholtz Equation in an Unbounded Domain with Noncompact Boundary1998Ingår i: Diff. Equations, 1998, Vol. 34, no 4, pp. 546-553Artikel i tidskrift (Refereegranskat)
  • 41. Shestopalov, Youri
    et al.
    Il'inskij, A.
    Application of the Method of Integral Equations for Calculating the Propagation Constants in Microstrip Lines1978Ingår i: Numerical Methods of Electrodynamics, pp.3-21, Moscow: Moscow State Univ. Publ. House , 1978Kapitel i bok, del av antologi (Refereegranskat)
  • 42. Shestopalov, Youri
    et al.
    Il'inskij, A.
    Diffraction by the Slot in the Perfectly Conducting Plane Screen on the Boundary Between Two Different Media1978Ingår i: Numerical Analysis and Computer Science, Vol. 28, pp. 70-89, Moscow: Moscow State Univ. Publ. House , 1978Kapitel i bok, del av antologi (Refereegranskat)
  • 43. Shestopalov, Youri
    et al.
    Il'inskij, A.
    Mathematical Model for the Problem of Wave Propagation in Microstrip Devices1980Ingår i: Numerical Analysis and Computer Science, Vol. 32, pp. 85-103, Moscow: Moscow State Univ. Publ. House , 1980Kapitel i bok, del av antologi (Refereegranskat)
  • 44. Shestopalov, Youri
    et al.
    Il'inskij, A.
    Chernokozhin, E.
    Development of Operator Methods for the Problem of Normal Waves in Coupled Microstrip Lines with Multilayered Substrate1984Ingår i: Mathematical Models of Applied Electrodynamics, pp. 116-136, Moscow: Moscow State Univ. Publ. House , 1984Kapitel i bok, del av antologi (Refereegranskat)
  • 45.
    Shestopalov, Youri
    et al.
    Karlstads universitet, Fakulteten för teknik- och naturvetenskap, Avdelningen för matematik.
    Kobayashi, K
    Smirnov, Y
    Investigation of Electromagnetic Diffraction by a Dielectric Body in a Waveguide using the Method of Volume Singular Integral Equation2009Ingår i: SIAM Journal on Applied Mathematics, ISSN 0036-1399, E-ISSN 1095-712X, Vol. 70, nr 3, s. 969-983Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The problem of diffraction of an electromagnetic field by a locally nonhomogeneous body in a perfectly conducting waveguide of rectangular cross section isconsidered. This problem is reduced to solving a volume singular integral equation (VSIE). The examination of this equation is based on the analysis of the corresponding boundary value problem(BVP) for the system of Maxwell's equations and the equivalence of this BVP and VSIE. The existence and uniqueness for VSIE in the space of square-integrable functions are proved. A numerical Galerkin method for the solution of VSIE is proposed, and its convergence is proved

  • 46. Shestopalov, Youri
    et al.
    Kotik, N.
    Development of the Method of Approximate Decomposition for the Solution of Boundary Value Problems for Elliptic Systems in Three-Dimensional Case2007Konferensbidrag (Refereegranskat)
  • 47. Shestopalov, Youri
    et al.
    Kotik, N.
    Solution to mixed boundary-contact problems by the method of integral equations2005Konferensbidrag (Refereegranskat)
  • 48. Shestopalov, Youri
    et al.
    Kotik, Nikolai
    Analysis of mixed boundary-value problems for a system of elliptic equations in the layer associated with boundary-contact problems of elasticity2005Konferensbidrag (Refereegranskat)
  • 49. Shestopalov, Youri
    et al.
    Kotik, Nikolai
    and Interaction of Waves in Gamma- and Cross-Shaped Slotted Waveguides2002Konferensbidrag (Refereegranskat)
  • 50. Shestopalov, Youri
    et al.
    Kotik, O.
    Interaction of Oscillations in Slotted Resonators and its Applications to Microwave Imaging2003Ingår i: J Electromagnetic Waves Applications vol 17Artikel i tidskrift (Refereegranskat)
12 1 - 50 av 96
RefereraExporteraLänk till träfflistan
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
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  • sv-SE
  • Annat språk
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  • html
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  • asciidoc
  • rtf