Gheorghe Morosanu
Professor
Head of Department
Egyetemi tanár
Building:
Zrinyi u. 14 Room:
310 Phone number:
+36 1 327-3000 / 2430 Qualifications:
PhD, Mathematics, Alexandru Ioan Cuza University, Iasi, Romania Academic/Professional experience, and Achievements:
EMPLOYMENT
* 2002 - present: Full Professor, Central European University, Budapest, Hungary
* 2001-2002: Researcher, University of Stuttgart, Germany
* 1991-2001: Full Professor, Alexandru Ioan Cuza University, Iasi, Romania
* 1990-1991: Associate Professor, Alexandru Ioan Cuza University, Iasi, Romania
* 1980-1990: Assistant Professor, Alexandru Ioan Cuza University, Iasi, Romania
* 1978-1980: Researcher, Alexandru Ioan Cuza University, Iasi, Romania
* 1974-1978: Teacher of Mathematics, High School No. 5, Iasi, Romania
OTHER APPOINTMENTS
* 2004 - present: Head of the Department of Mathematics and its Applications, Central European University, Budapest
* 2003-2004: Acting Head of the Department of Mathematics and its Applications, Central European University, Budapest
* 1999-2001: Member of Committee No. 1 (for Mathematics and Natural Sciences) of the National Council for Scientific Research, Ministry of Education, Romania
* 1992-1996: Head of the Department of Differential Equations, Faculty of Mathematics, Alexandru Ioan Cuza University, Iasi, Romania
* 1990-1991: Chancellor, Faculty of Mathematics, Alexandru Ioan Cuza University, Iasi, Romania
* 1995-2004: Researcher, Institute of Mathematics, Romanian Academy, Iasi Branch
TEACHING EXPERIENCE
I have delivered many courses at different universities, on various topics, such as: Calculus, Linear Algebra, Linear Programming, Real Analysis, Functional Analysis, Ordinary Differential Equations, Partial Differential Equations, Integral Equations, Evolution Equations and Applications, Calculus of Variations, Control Theory, Semigroups of Linear Operators and Applications, and others.
Visiting Professorship Positions: University of Jyväskylä, Finland (1989); Ohio University, Athens, Ohio, U.S.A. (1998 and 2000)
SUPERVISION
The following individuals have completed their PhD dissertations under my supervision or co-supervision: Panait Anghel (1999), Narcisa Apreutesei (1999), Luminita Barbu (1998), Oganeditse A. Boikanyo (2011), Cristian Coclici (1998), Valeriu Paul Georgescu (2000 and 2008), Tihomir Gyulov (2010), Alexandru Kristály (2010), Gabriela-Lorelai Litcanu (2001), Rodica Luca (1995), Mihai Mihailescu (2010), Ilie Radu Mitric (2002), Andras Sereny (2008), Viorica-Venera Motreanu (2003) and Mircea Voisei (2004).
Furthermore, I have been an advisor of many other students and young researchers.
I organize frequently workshops to stimulate students' interest for research. In 2009 I launched a Departmental Seminar at the Central European University.
ACHIEVEMENTS RELATED TO EDUCATIONAL PROGRAMS
* I have contributed to the implementation and US accreditation of the Ph.D. Program in Mathematics and its Applications of the Central European University, Budapest.
* I prepared the proposal for launching a two year Master of Science (M.S.) Program in Applied Mathematics at the Central European University, Budapest, starting academic year 2008-2009. The program was accredited in the US in 2008.
SCIENTIFIC ACTIVITY
Fields of Interest: Ordinary and Partial Differential Equations, Difference Equations, Calculus of Variations, Evolution Equations in Banach Spaces, Fluid Mechanics, Singular Perturbation Theory, Various Topics in Applied Mathematics
PhD Defense: January 16, 1981, thesis title: Qualitative Problems for Nonlinear Differential Equations of Accretive Type in Banach Spaces
PhD Supervisors: Viorel Barbu and Adolf Haimovici
Publications: 5 books in English, 10 books in Romanian, over 100 research papers.
INTERNATIONAL RECOGNITION AND DIFFUSION
I am frequently invited to give talks and lectures series on my own results. I myself organize or co-organize from time to time scientific events such as, for example:
* 2011 (September 19-25): Symposium on Linear and Nonlinear Operators and Applications, in the framework of the International Conference of Numerical Analysis and Applied Mathematics (ICNAAM), Halkidiki, Greece.
* 2011 (May 21): Workshop on Applied Mathematics, Central European University (CEU), Budapest, dedicated to the 20th anniversary of CEU
* 2010 (October 29): Workshop on Applied Analysis, CEU, Budapest, dedicated to the 20th anniversary of CEU
* 2008: Workshop on Calculus of Variations and Optimization, CEU, Budapest
* 2007: Student Workshop on Some Topics in Applied Mathematics, CEU, Budapest
* 2007: Workshop on Applied Evolution Equations, CEU, Budapest
* 2006: New Trends in Applied Mathematics, CEU, Budapest
* 2006: Recent Advances in Calculus of Variations, CEU, Budapest
* 1990: International Conference on Differential Equations and Control Theory, Alexandru Ioan Cuza University, Iasi, Romania
I have visited many institutions for research purposes, such as: University of Rousse, Bulgaria (2010), Technical University, München, Germany (2002), University of Stuttgart, Germany (1997 (DAAD Fellowship), 1999, 2000, 2001, and 2002), University of Jyväskylä, Finland (1995, 1996, 1997, 1998, and 1999), International Centre for Theoretical Physics (ICTP), Trieste, Italy (1984, and 1985), Ohio University, Athens, Ohio (1988 and 2000), and many others.
I have cooperated with many (over 30) researchers on various topics within my areas of interest or neighbouring areas and disciplines, including biology, chemistry, economics, engineering, mechanics, physics.
I have been director or investigator for several grants, as follows:
* 2007: Director of the grant Applied Evolution Equations, CEU, Budapest
* 2001-2002 (15 months): Investigator, DFGWe659 - Conservation Laws and Electromagnetic Fields, University of Stuttgart, Germany
* 1991-2000: During this period I have been director of several grants offered by the Ministry of Education, Romania, or by the Romanian Academy. In addition, I have been a member of the research teams for further Romanian grants.
MEMBERSHIP ON JOURNAL EDITORIAL COMMITTEES:
* Annals of the Ovidius University, Constanta (Romania)
* Annals of the University of Craiova (Romania)
* Communications in Differential and Difference Equations (India)
* International Journal of Applied Mathematical Sciences (India)
* Mathematical Sciences Research Journal (U.S.A.)
* Nonlinear Functional Analysis and Applications (Korea)
AWARDS AND HONORS
* 2007: Honorary Citizenship of Darabani (my hometown)
* 2006: Egyetemi tanár (University Professor), awarded by the President of Hungary
* 1985: Distinguished Assistant Professor, Ministry of Education, Romania
* 1983: The Gheorghe Lazar Prize of the Romanian Academy (for outstanding contributions to the theory of hyperbolic partial differential equations)
MEMBERSHIP
* American Mathematical Society
* International Federation of Nonlinear Analysts
* Mathematical Association of America
Academic/research topics:
Ordinary and Partial Differential Equations
Difference Equations
Calculus of Variations
Evolution Equations in Banach Spaces
Fluid Mechanics
Singular Perturbation Theory
Various Topics in Applied Mathematics
Academic/Research Areas:
Mathematics External links:
Homepage Publications
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Singularly Perturbed Boundary Value Problems In International Series of Numerical Mathematics. Vol. 156. Basel - Boston - Berlin: Birkhäuser , 2007.
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Functional Methods in Differential Equations. Vol. 432. Boca Raton - London - New York - Washington, D.C.: Chapman & Hall/CRC, 2002.
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Asymptotic Analysis of Some Boundary Value Problems with Singular Perturbations. Bucharest: Editura Academiei Romane, 2000.
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Elements of Linear Algebra and Analytic Geometry. Bucuresti: Matrix Rom, 2000.
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Nonlinear Second Order Differential Equations in Hilbert Spaces. Bucharest: Matrix Rom, 2000.
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Monotonicity Methods for Partial Differential Equations. Vol. 11. Budapest: Budapest University of Technology and Economics, 1999.
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Functional Methods in the Study of Boundary Value Problems In Math. Monographs. Vol. 70. Timișoara: Editura Univ. Timisoara, 1999.
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Mathematics. Collection of Exercises in Algebra and Analysis. Chisinau: Editura Tehnica, 1998.
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Mathematics. Tests in Algebra and Analysis. Vol. 88. Iasi: "Gr. T. Popa" University of Medicine and Pharmacology, 1998.
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Problems on Differential Equations. Iasi: Universitatea "Al I. Cuza", 1985.
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Quasilinear elliptic equations involving variable exponents In International Conference on Numerical Analysis and Applied Mathematics (ICNAAM) 2008, Psalidi, Kos, Greece, Edited by T. E. Simos, G. Psihoyios and C. Tsitouras. Vol. Numerical Analysis and Applied Mathematics. Melville - New York: American Institute of Physics , 2008.
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Singularly perturbed BVPs for the telegraph system In International Conference on Numerical Analysis and Applied Mathematics (ICNAAM), Hersonissos, Crete, Greece, 2006, Edited by T. E. Simos, G. Psihoyios and C. Tsitouras. Vol. Numarical Analysis and Applied Mathematics ICNAAM 2006. Weinheim: WILEY-VCH Verlag GmbH & Co. KGaA, 2006.
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Singularly perturbed, transmission parabolic problems In International Conference on Boundary and Interior Layers, Toulouse, France, 2004. Vol. Computational and Asymptotic Methods . Toulouse: ONERA, 2004.
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Evolutionary boundary value problems with singular perturbations In 4th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), Jyväskylä, Finland, 2004, Edited by P. Neittaanmaki, T. Rossi, S. Korotov, E. Onate, J. Periaux and Z. Knorzer. Jyvaskyla, Finland, 2004.
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Asymptotic analysis of coupled problems for compressible flows In 4th European Conference on Numerical Mathematics and Advanced Applications (ENUMATH), Ischia, Italy, 2001, Edited by F. Brezzi, A. Buffa, S. Corsaro and A. Murli. Vol. Numerical Mathematics and Advanced Applications. Milano, Italy: Springer-Verlag, 2003.
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Asymptotic analysis of the telegraph system with nonlinear boundary conditions In Conference on Differential Equations and Control Theory, Athens, Ohio, 2000, Edited by S. Aizicovici and N. H. Pavel. Vol. 225. Lecture Notes in Pure and Applied Mathematics 225. New York: Marcel Dekker, 2002.
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Multi-model formulations for compressible viscous plasma flows in MPD-accelerators In European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), Swansea, Wales, UK, 2001. Computational Fluid Dynamics Conference., 2001.
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An inverse problem for the telegraph system In The Third European Conference on Numerical Mathematics and Advanced Applications (ENUMATH), Jyväskylä, Finland, 1999, Edited by P. Neittaanmaki, T. Tiihonen and P. Tarvainen. Vol. Numerical Mathematics and Advanced Applications . River Edge, NJ: World Scientific Publishing Co. Pte. Ltd., 2000.
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On a second order boundary value problem related to capillary surfaces In Analysis, Numerics and Applications of Differential and Integral Equations, Stuttgart, 1996, Edited by M. Bach. Vol. 379. Pitman Research Notes in Mathematics 379. Harlow: Longman Scientific and Technical, 1998.
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Nonlinear boundary value problems for a class of hyperbolic systems In Evolution Equations, Control Theory and Biomathematics, Han-sur-Lesse, Belgium, 1991, Edited by P. Clement and G. Lumer. Vol. 155. Lecture Notes in Pure and Applied Mathematics 155. New York, Basel, Hong Kong: Marcel Dekker, 1994.
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Asymptotic properties of solutions to evolution equations In Optimization, Optimal Control and Partial Differential Equations, Iasi, Romania, 1992, Edited by V. Barbu, J. F. Bonnans and D. Tiba. Vol. 107. International Series of Numerical Mathematics 107. Basel - Boston - Berlin: Birkhäuser Verlag, 1992.
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Parabolic problems associated to integrated circuits with time dependent sources In Differential Equations and Control Theory, Iasi, Romania, 1990, Edited by V. Barbu. Vol. 250. Pitman Research Notes in Mathematics 250. Boston - London - Melbourne: Longman Scientific and Technical, 1991.
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Well-posed nonlinear problems in the theory of electrical networks with distributed and lumped parameters In Seventeenth IASTED International Symposium on Simulations and Modelling, Lugano, Switzerland, 1989. Vol. Proceedings of the Seventeenth IASTED International Symposium on Simulations and Modelling. Anaheim - Calgary - Zürich: ACTA Press, 1989.
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Existence and regularity of solutions for a class of partial differential hyperbolic systems In Workshop on Differential Equations and Control Theory, Iasi, Romania, 1983. Vol. Proceedings of the Workshop on Differential Equations and Control Theory. Iasi: "Al I. Cuza" University, Faculty of Mathematics, 1983.
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On a class of nonlinear differential hyperbolic systems In Differential Equations and Applications, Rousse, Bulgaria, 1981, Edited by I. Dimovski and J. Stoyanov. Vol. Proceedings of the Second Conference on Differential Equations and Applications. Rousse, Bulgaria: Technical University, Rousse, Center of Mathematics, 1982.
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Asymptotic stability of solutions to nonlinear boundary value problems for a class of hyperbolic systems In Itinerant Seminar on Functional Equations, Approximation and Convexity, Iasi, Romania, 1979. Vol. Functional Equations, Approximation and Convexity. Iasi: "Al I. Cuza" University, Faculty of Mathematics, 1979.
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Regularity of solutions of variational inequalities in Hilbert spaces In Summar School on Variational Inequalities and Optimization Problems, Constanta, Romania, 1979. Vol. Variational Inequalities and Optimization Problems. Constanta: Romanian Ministry of Education and Constanta Institute of Higher Education, 1979.
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Second order difference equations associated to monotone operators and the proximal point algorithm In Itinerant Seminar on Functional Equations, Approximation and Convexity, Cluj-Napoca, Romania, 1979. Vol. Functional Equations, Approximation and Convexity. Cluj-Napoca: "Babes-Bolyai" University, Cluj-Napoca, Romania, 1979.
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"Eigenvalue problems in anisotropic Orlicz–Sobolev spaces." Comptes Rendus de l'Académie des Sciences, Paris Ser. I - Mathematics, Vol. 347 (2009): 521-526.
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"A necessary and sufficient condition for input identifiability for linear time-invariant systems." Applied Mathematics Letters 22 (2009): 823-826.
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"Multiplicity results for double eigenvalue problems involving the p-Laplacian." Taiwanese Journal of Mathematics 13, no. 3 (2009): 1095-1110.
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"Modified Rockafellar's algorithms." Mathematical Sciences Research Journal 13, no. 5 (2009): 101-122.
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"Flow invariance of semilinear evolution equations under generalized dissipativity conditions." Nonlinear Analysis 68 (2008): 443-455.
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"Impulsive perturbations of a three-trophic prey-dependent food chain system." Mathematical and Computer Modelling 48 (2008): 975-997.
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"Optimal placement of a deposit between markets: a Riemann-Finsler geometrical approach." Journal of Optimization Theory and Applications 139 (2008): 263-276.
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"Homoclinic solutions of a fourth-order travelling wave ODE." Portugaliae Mathematica 64, no. 3 (2007): 281-301.
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"On a nonsmooth fourth order boundary value problem." Nonlinear Analysis 67 (2007): 2800-2814.
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"Pest regulation by means of impulsive controls." Applied Mathematics and Computation 190 (2007): 790-803.
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"Quasilinear elliptic problems in R^N involving oscillatory nonlinearities." Journal of Differential Equations 235 (2007): 366-375.
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"A telegraph system with time-dependent boundary conditions." Mathematical Sciences Research Journal 10, no. 7 (2006): 177-187.
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"Global stability for a stage-structured predator-prey model." Mathematical Sciences Research Journal 10, no. 8 (2006): 214-228.
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"Ordinary p-Laplacian systems with nonlinear boundary conditions." Journal of Mathematical Analysis and Applications 313 (2006): 738-753.
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"Existence for a semilinear sixth-order ODE." Journal of Mathematical Analysis and Applications 321 (2006): 86-98.
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"Mountain pass type solutions for discontinuous perturbations of the vector p-Laplacian." Nonlinear Functional Analysis and Applications 10, no. 4 (2005): 591-611.
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"Stability for a nonlinear second order ODE." Funkcialaj Ekvacioj 48 (2005): 49-56.
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"Stability for a damped nonlinear oscillator." Nonlinear Analysis 60 (2005): 303-310.
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"On a coupled parabolic-parabolic problem with a small parameter." International Journal of Applied Mathematical Sciences 2, no. 2 (2005): 207-219.
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"First order asymptotic expansion for a singularly perturbed, coupled parabolic- -parabolic problem." Nonlinear Functional Analysis and Applications 9, no. 1 (2004): 99-116.
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"On a singularly perturbed, coupled parabolic-parabolic problem." Asymptotic Analysis 40 (2004): 67-81.
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"On some mathematical modelling of the self-field MPD thrusters." ZAMMZeitschrift für Angewandte Mathematik und Mechanik 84, no. 9 (2004): 598-631.
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"Asymptotic analysis of a two-dimensional coupled problem for compressible viscous flows." Discrete and Continuous Dynamical Systems 10, no. 1/2 (2004): 137-163.
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"Existence and high regularity of the solution of a nonlinear parabolic problem with algebraic-differential boundary conditions." Mathematische Nachrichten 259 (2003): 74-83.
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"Closed range mild solution operators and nonconvex optimal control via orthogonality and generalized gradients." Nonlinear Analysis 49 (2002): 247-264.
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"Existence and regularity for a class of nonlinear hyperbolic boundary value problems." Journal of Mathematical Analysis and Applications 266, no. 2 (2002): 432-450.
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"High regularity of the solution of a nonlinear parabolic boundary value problem." Electronic Journal of Differential Equations 2002, no. 48 (2002): 1-12.
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"The coupling of hyperbolic and elliptic boundary value problems with variable coefficients." Mathematical Methods in the Applied Sciences 23 (2000): 401-440.
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"A class of singularly perturbed, coupled, evolutionary boundary value problems." Mathematical Sciences Research Hot-Line Journal 4, no. 8 (2000): 63-76.
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"On a class of singularly perturbed coupled boundary value problems." Mathematical Sciences Research Hot-Line Journal 4, no. 6 (2000): 25-37.
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"A class of nonlinear parabolic boundary value problems." Mathematical Sciences Research Hot-Line Journal 3, no. 4 (1999): 1-22.
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"On the viscous-viscous and the viscous-inviscid interaction in Computational Fluid Dynamics." Computing and Visualization in Science 2 (1999): 95-105.
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"A first order asymptotic expansion of the solution of a singularly perturbed problem for the telegraph equations." Applicable Analysis 72, no. 1-2 (1999): 111-125.
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"One-dimensional singularly perturbed coupled boundary value problems." Mathematical Sciences Research Hot-Line Journal 3, no. 10 (1999): 1-21.
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"Regularity of solutions of the telegraph system with nonlinear boundary conditions." PanAmerican Mathematical Journal 9, no. 3 (1999): 17-29.
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"A class of degenerate multivalued second order boundary value problems." Journal of Mathematical Analysis and Applications 236, no. 1 (1999): 1-24.
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"Un probleme aux limites pour une equation differentielle non lineaire du deuxieme ordre." Bulletin de la Classe des Sciences de l'Academie Royale de Belgique Ser. 6, Vol. 10, no. 1-6 (1999): 79-88.
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"The Fourier method for abstract differential equations and applications." Communications in Applied Analysis 3, no. 2 (1999): 173-188.
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"On the commutation, symmetricity and unitarity of linear evolution operators." Analele Stiintifice ale Universitatii "Ovidius' Constanta Ser. Matematica, Vol. 6, no. 1 (1998): 75-84.
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"The singular limit of telegraph equations." Communications on Applied Nonlinear Analysis 5, no. 1 (1998): 91-106.
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"Differentiability with respect to delay." Differential and Integral Equations 11, no. 4 (1998): 589-603.
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"On a degenerate second order boundary value problem." Analele Stiintifice ale Universitatii "Ovidius", Constanta Ser. Matematica, Vol. 6, no. 1 (1998): 141-152.
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"Asymptotic analysis of the telegraph equations with non-local boundary value conditions." PanAmerican Mathematical Journal 8, no. 4 (1998): 13-22.
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"A Variational Approach to a Problem Arising in Capillarity Theory." Journal of Mathematical Analysis and Applications 206 (1997): 442-447.
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"On the commutation, symmetricity and unitarity of the evolution operators for linear Cauchy problems." PanAmerican Mathematical Journal 7, no. 2 (1997): 1-14.
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"An application of the Fourier method in acoustics." Advances in Mathematical Sciences and Applications, Gakkotosho, Tokyo 7, no. 1 (1997): 69-77.
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"On a boundary value problem for a second order differential equation." Analele Stiintifice ale Universitatii Ovidius Constanta : Seria Matematica 5, no. 1 (1997): 89-94.
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"A nonlinear integro-differential equation related to a problem from capillarity theory." Communications on Applied Nonlinear Analysis 3, no. 1 (1996): 51-60.
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"On the system x'=A(t)x with A(t) symmetric or antisymmetric." Buletinul Institutului Politehnic, Iasi - Sectia I. Matematica, Mecanica Teoretica, Fizica 42 (46), no. 1-2 (1996): 35-39.
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"On a problem arising in capillarity theory." Analele Stiintifice ale Universitatii "Ovidius", Constanta Ser. Matematica, Vol. 3 (1995): 127-137.
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"Some remarks on the phase field equations." Libertas Mathematica 15 (1995): 159-164.
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"Periodic solutions for a class of functional equations." Analele Stiintifice ale Universitatii "Ovidius", Constanta Ser. Matematica, Vol. 3 (1995): 38-43.
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"Une équation intégro-différentielle de la théorie de la capillarité." Comptes Rendus de l'Académie des Sciences, Paris Ser. I - Mathematics, Vol. 319 (1994): 1171-1174.
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"Multiple orthogonal sequence method and applications." Analele Stiintifice ale Universitatii "Ovidius", Constanta Ser. Matematica, Vol. 2 (1994): 188-200.
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"An integro-differential equation from the capillarity theory." Libertas Mathematica 14 (1994): 115-123.
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"Hyperbolic problems in integrated circuit modelling." Studii si Cercetari Matematice 44, no. 5 (1992): 355-373.
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"Consistent models for electrical networks with distributed parameters." Mathematica Bohemica 117, no. 2 (1992): 113-122.
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"On a class of nonlinear hyperbolic systems." Memoriile Sectiilor Stiintifice ale Academiei Romane Ser. IV, Vol. XIV, no. 2 (1991): 219-237.
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"Well-posed nolinear problems in integrated circuits modeling." Circuits Systems Signal Process 10, no. 1 (1991): 53-69.
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"The study of some problems from the theory of integrated circuits." Memoriile Sectiilor Stiintifice ale Academiei Romane Ser. IV, Vol. 14, no. 2 (1991): 187-193.
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"Time periodic solutions for a class of partial differential hyperbolic systems." Analele Stiintifice ale Universitatii Al. I. Cuza din Iasi. Serie Noua. Matematica 36, no. 2 (1990): 93-98.
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"Variational solutions for elliptic boundary value problems." Analele Stiintifice ale Universitatii Al. I. Cuza din Iasi. Serie Noua. Matematica 35, no. 3 (1989): 237-244.
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"Optimal control of biharmonic variational inequalities." Analele Stiintifice ale Universitatii Al. I. Cuza din Iasi. Serie Noua. Matematica 35, no. 3 (1989): 153-170.
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"Nonlinear monotone boundary conditions for parabolic equations." Rendiconti dell'Istituto di Matemàtica dell'Universitá di Trieste 18 (1986): 136-155.
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"Asymptotic behaviour of the solutions of second order difference equations associated to monotone operators." Numerical Functional Analysis and Optimization 8, no. 3 (1985): 419-434.
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"The study of the evolution of some self-organized chemical systems." Journal of Chemical Physics 82, no. 8 (1985): 3685-3691.
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"Nonlinear boundary value problems for a class of hyperbolic partial differential systems." Atti del Seminario Matematico e Fisico dell' Universitá di Modena XXXIV (1985): 295-316.
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"Asymptotic dosing problem for evolution equations in Hilbert spaces." Analele Stiintifice ale Universitatii Al. I. Cuza din Iasi. Serie Noua. Matematica XXVIII, no. 1 (1982): 127-137.
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"On a class of nonlinear differential hyperbolic systems with non-local boundary conditions." Journal of Differential Equations 43, no. 3 (1982): 345-368.
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"Existence for a nonlinear hyperbolic system." Nonlinear Analysis, Theory, Methods & Applications 5, no. 4 (1981): 341-353.
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"Mixed problems for a class of nonlinear differential hyperbolic systems." Journal of Mathematical Analysis and Applications 83, no. 2 (1981): 470-485.
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"Stability of solutions of nonlinear boundary value problems for hyperbolic systems." Nonlinear Analysis, Theory, Methods & Applications 5, no. 1 (1981): 61-70.
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"Existence for nonlinear differential systems of hyperbolic type." Analele Stiintifice ale Universitatii Al. I. Cuza din Iasi. Serie Noua. Matematica XXVI (1980): 345-352.
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"Asymptotic behaviour of solutions of differential equations associated to monotone operators." Nonlinear Analysis, Theory, Methods & Applications 3, no. 6 (1979): 873-883.
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"Second order difference equations of monotone type." Numerical Functional Analysis and Optimization 1, no. 4 (1979): 441-450.
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"Asymptotic behaviour of resolvent for a monotone set in a Hilbert space." Atti Accad. Naz. Lincei LXI (1977): 565-570.
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On some singularly perturbed nonlinear boundary value problems In Reports of the Department of Mathematical Information Technology / University of Jyväskylä., Series B., Scientific computing. Vol. 8/2000. Jyväskylä: University of Jyväskylä, Finland, 2000.
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