Artigos em Revistas Internacionais

• Fracas, Paolo; Zondervan, Edwin; Franke, Meik; Camarda, Kyle; Valtchev, Stanimir; Valtchev, Svilen S.  (2022)  Techno-Economic Optimization Study of Interconnected Heat and Power Multi-Microgrids with a Novel Nature-Inspired Evolutionary Method . Electronics: 11(19), 3147.

• Alves, Carlos J. S.; Martins, Nuno F. M.; Valtchev, Svilen S.  (2021)  Domain decomposition methods with fundamental solutions for Helmholtz problems with discontinuous source terms . Computers and Mathematics with Applications: 88, 16-32.

• Alves, Carlos J. S.; Antunes, Pedro R. S.; Martins, Nuno F. M.; Valtchev, Svilen S.  (2020)  Solving boundary value problems on manifolds with a plane waves method . Applied Mathematics Letters: 107, 106426.

• Valtchev, Svilen S.  (2018)  A meshfree method with plane waves for elastic wave propagation problems . Engineering Analysis with Boundary Elements: 92, 64-72.

• Alves, Carlos J. S.; Martins, Nuno F. M.; Valtchev, Svilen S.  (2018)  Trefftz methods with cracklets and their relation to BEM and MFS . Engineering Analysis and Boundary Elements: 95, 93-104.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2018)  On the application of the method of fundamental solutions to boundary value problems with jump discontinuities . Applied Mathematics and Computation: 320, 61–74.

• Alves, Carlos J. S.; Martins, Nuno F. M.; Valtchev, Svilen S.  (2017)  Extending the method of fundamental solutions to non-homogeneous elastic wave problems . Applied Numerical Mathematics: 115, 299-313.

• Antunes, Pedro R. S.; Valtchev, Svilen S.  (2010)  A Meshfree Numerical Method for Acoustic Wave Propagation Problems in Planar Domains with Corners and Cracks . Journal of Computational and Applied Mathematics: 234(9), 2646-2662.

• Valtchev, Svilen S. ; Roberty, Nilson C. (2008)  A Time-Marching MFS Scheme for Heat Conduction Problems . Engineering Analysis with Boundary Elements: 32(6), 480-493.

• Diogo, Teresa; Lima, Pedro M.; Ford, Neville J.; Valtchev, Svilen S.  (2006)  Numerical Methods for a Volterra Integral Equation with Non-smooth Solutions . Journal of Computational and Applied Mathematics: 189(1-2), 412–423.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2005)  Numerical Comparison of Two Meshfree Methods for Acoustic Wave Scattering . Engineering Analysis with Boundary Elements: 29(4), 371-382.

Artigos ou Capítulos em Livros Editados

• Martins, Nuno F. M.; Valtchev, Svilen S.  (2025)  A Meshfree Method of Particular Solutions with Neuber-Papkovich Potentials for Nonhomogeneous Elastodynamic Problems . Numerical Mathematics and Advanced Applications, ENUMATH 2023 (Ed. Sequeira, A., et al.). Lecture Notes in Computational Science and Engineering, Vol. 154, Springer Cham, 162-171.

• Valtchev, Stanimir S.; Valtchev, Svilen S.  (2018)  Control for the Contactless Series Resonant Energy Converter . Emerging Capabilities and Applications of Wireless Power Transfer, 102-140.

• Valtchev, Svilen S. ; Alves, Carlos J. S. (2017)  Extending the method of fundamental solutions to potential problems with discontinuous boundary conditions . Advances in Boundary Element & Meshless Techniques XVIII (Ed: L Marin, M H Aliabadi), 132-137.

• Madeiros, Rui; Valtchev, Stanimir S.; Valtchev, Svilen S.  (2012)  The efficient and stable charging of electric vehicle batteries: simplified instantaneous regulation . Technological Innovation for Value Creation: IFIP Advances in Information and Communication Technology, IFIP Advances in Information and Communication Technology, Springer Berlin Heidelberg: 372, 363-374.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2007)  A Kansa Type Method Using Fundamental Solutions Applied to Elliptic PDEs . Advances in Meshfree Techniques (Ed. Leitao, Vma et Al.). Computational Methods in Applied Sciences: 5, 241-256.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2006)  Comparison between meshfree and boundary element methods applied to BVPs in domains with corners . III European Conference on Computational Mechanics.

Comunicações em Actas de Conferência

• Valtchev, Svilen S. ; Marin, Liviu (2025)  A Meshfree Method with Overlapping Domain Decomposition for Elliptic Boundary Value Problems . AIP Conf. Proc. of ICNAAM 2023: 3315, 080004.

• Valtchev, Svilen S. ; Martins, Nuno F. M. (2021)  Meshfree approximate solution of the Cauchy-Navier equations of elastodynamics . Proceedings of the 3nd International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA).

• Valtchev, Svilen S.  (2020)  A meshfree method with domain decomposition for Helmholtz boundary value problems . Proceedings of the 2nd International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA), 139--144.

• Mudrov, M.; Zyuzev, A.; Konstantin, N.; Valtchev, Stanimir S.; Valtchev, Svilen S.  (2017)  Hardware-in-the-loop system numerical methods evaluation based on brush DC-motor model . Proceedings of the International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) and 2017 International Aegean Conference on Electrical Machines and Power Electronics (ACEMP), 428-433.

• Valtchev, Svilen S. ; Alves, Carlos J. S. (2017)  Applying the Method of Fundamental Solutions to Harmonic Problems with Singular Boundary Conditions . AIP Conf. Proc. of ICNAAM 2016: 1836, 560020.

• Valtchev, Svilen S. ; Alves, Carlos J. S.; Martins, Nuno F. M. (2014)  A Meshfree Method with Fundamental Solutions for Inhomogeneous Elastic Wave Problems . Proceedings of the 6th International Conference on Numerical Analysis (NumAn 2014), September 2-5, Chania,Greece.

• Valtchev, Stanimir S.; Valtchev, Svilen S.  (2012)  Experimental study of the energy portions control in series resonant converter . Proceedings of the 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 827-832.

• Valtchev, Stanimir S.; Madeiros, Rui; Valtchev, Svilen S. ; Klaassens, Ben (2011)  An Instantaneous Regulation for the Wired and Wireless Super-Resonant Converters . Proceedings of the 33rd International Telecommunications Energy Conference (INTELEC), 1-8.

• Valtchev, Svilen S.  (2010)  Asymptotic Analysis of the Method of Fundamental Solutions for Acoustic Wave Propagation . AIP Conf. Proc. of ICNAAM 2010: 1281, 1179-1182.

• Valtchev, Stanimir S.; Valtchev, Svilen S.  (2010)  Improved strategy for an instantaneous super-resonant converter regulation . Proceedings of the 12th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM): 5510484, 631-638.

• Valtchev, Stanimir S.; Miletiev, R.; Arnaoudov, Rumen; Valtchev, Svilen S.  (2009)  Control strategy for efficient operation of super-resonant SLSR (contactless) converters . Procieedings of the XLIV International Scientific Conference on Information, Communication and Energy Systems and Technologies, 527-530.

• Valtchev, Svilen S.  (2008)  A mesh free numerical method for acoustic wave propagation problems in planar domains with corners and cracks . Proceedings of the IWANASP.

• Valtchev, Svilen S. ; Roberty, Nilson C. (2007)  A hybrid FDM-MFS method for the numerical solution of heat transfer problems . Proceedings of the ECCOMAS thematic conference on Meshless methods.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2007)  The plane waves method as an asymptotic MFS . Proceedings of the MFS2007.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2005)  A Kansa type method using fundamental solutions applied to elliptic PDEs . Proceedings of the ECCOMAS thematic conference on Meshless methods.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2005)  A Kansa type method using fundamental solutions applied to second order elliptic PDEs . Proceedings of the ICCES'05.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2004)  Resolucao numerica de problemas de difraccao acustica nao homogeneos atraves de dois metodos sem malha . Proceedings of the VIIIth Congress on Applied and Computational Mechanics & VI Congresso de Metodos Numericos en Ingeniaria.

• Diogo, Teresa; Lima, Pedro M.; Valtchev, Svilen S.  (2003)  Numerical methods for a non-uniquely solvable Volterra integral equation . Proceedings of the XXIVth Iberian Latin-American Congress on Computational Methods in Engineering (XXIV CILAMCE).

• Diogo, Teresa; Valtchev, Svilen S.  (2003)  Collocation methods for a Volterra integral equation with multiple solutions . Fundamental Physical- Mathematical Problems and Modelling of Technological Systems: 6.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2003)  Resolucao numerica de problemas de difraccao de ondas acusticas usando resultados de densidade de ondas planas e de solucoes fundamentais . Proceedings of the VIIth Congress on Applied and Computational Mechanics, 2139–2148.

• Alves, Carlos J. S.; Valtchev, Svilen S.  (2003)  Numerical simulations of acoustic wave scattering using a meshfree plane wave method . Proceedings of the International Workshop on Meshfree Methods, Instituto Superior Tecnico, Portugal, 215-220.

• Diogo, Teresa; Valtchev, Svilen S. ; Lima, Pedro M. (2003)  Numerical solution of a singular Volterra integral equation by piecewise polynomial collocation . Proceedings of the IXth International Conference on Enhancement and Promotion of Computational Methods in Engineering and Science (EPMESC IX).

Teses

• Valtchev, Svilen S.  (2008)  Numerical analysis of methods with fundamental solutions for acoustic and elastic wave propagation problems . PhD Thesis, Instituto Superior Tecnico, University of Lisbon.

• Valtchev, Svilen S.  (2002)  Metodos numericos para uma equacao integral de Volterra com infinitas solucoes . Diploma Thesis, Instituto Superior Tecnico, University of Lisbon.

Edição de Livros

• Sequeira, Adélia; Silvestre, Ana Leonor; Valtchev, Svilen S. ; Janela, João (2025)  Numerical Mathematics and Advanced Applications, ENUMATH 2023, Volume 2 . Springer series: Lecture Notes in Computational Science and Engineering, Vol. 154, Springer Cham, ISBN 978-3-031-86168-0.

• Sequeira, Adélia; Silvestre, Ana Leonor; Valtchev, Svilen S. ; Janela, João (2025)  Numerical Mathematics and Advanced Applications, ENUMATH 2023, Volume 1 . Springer series: Lecture Notes in Computational Science and Engineering, Vol. 153, Springer Cham, ISBN 978-3-031-86172-7.

• Alves, Carlos J. S.; Karageorghis, Andreas; Leitão, Vitor M. A.; Valtchev, Svilen S.  (2020)  Advances in Trefftz methods and their applications . Springer series: SEMA SIMAI, Vol. 23, Springer Cham, ISBN 978-3-030-52803-4.