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Andrzej Szulkin

Observed names: A. Szulkin, ANDRZEJ SZULKIN, Szulkin, A., Szulkin, Andrzej
ORCID: 0000-0001-8797-4657
Observed ORCID: 0000-0001-8797-4657
OpenAlex ID: A5048376237
Ground state solutions for some indefinite variational problems
2009 · Andrzej Szulkin, Tobias Weth · Journal of Functional Analysis · 484
Minimax principles for lower semicontinuous functions and applications to nonlinear boundary value problems
1986 · Andrzej Szulkin · Annales de l Institut Henri Poincaré C Analyse Non Linéaire · 377
Generalized linking theorem with an application to a semilinear Schrödinger equation
1998 · Wojciech Kryszewski, Andrzej Szulkin · Advances in Differential Equations · 312
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The method of Nehari manifold
2010 · Andrzej Szulkin, Tobias Weth · 231
Ljusternik–Schnirelmann theory on $C^1$-manifolds
1988 · Andrzej Szulkin · Annales de l Institut Henri Poincaré C Analyse Non Linéaire · 182
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Multiple solutions for a quasilinear Schrödinger equation
2012 · Xiang-Dong Fang, Andrzej Szulkin · Journal of Differential Equations · 173
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An Asymptotically Periodic Schrödinger Equation With Indefinite Linear Part
2002 · GONGBAO LI, ANDRZEJ SZULKIN · Communications in Contemporary Mathematics · 171
A Semilinear Schr�dinger Equation in the Presence of a Magnetic Field
2003 · Gianni Arioli, Andrzej Szulkin · Archive for Rational Mechanics and Analysis · 170
Bound states for semilinear Schrödinger equations with sign-changing potential
2007 · Yanheng Ding, Andrzej Szulkin · Calculus of Variations and Partial Differential Equations · 165
Multiple solutions to logarithmic Schrödinger equations with periodic potential
2014 · Marco Squassina, Andrzej Szulkin · Calculus of Variations and Partial Differential Equations · 155
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Homoclinic Orbits for Asymptotically Linear Hamiltonian Systems
2001 · Andrzej Szulkin, Wenming Zou · Journal of Functional Analysis · 152
On symmetric solutions of an elliptic equation with a nonlinearity involving critical Sobolev exponent
1995 · Gabriele Bianchi, Jan Chabrowski, et al. · Nonlinear Analysis · 120
An infinite dimensional Morse theory with applications
1997 · Wojciech Kryszewski, Andrzej Szulkin · Transactions of the American Mathematical Society · 111
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A logarithmic Schrödinger equation with asymptotic conditions on the potential
2015 · Chao Ji, Andrzej Szulkin · Journal of Mathematical Analysis and Applications · 106
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Eigenvalue problems with indefinite weight
1999 · Andrzej Szulkin, Michel Willem · 89
Cohomology and Morse theory for strongly indefinite functionals
1992 · Andrzej Szulkin · Mathematische Zeitschrift · 76
A relative category and applications to critical point theory for strongly indefinite functionals
1990 · Andrzej Szulkin · Nonlinear Analysis · 71
On a semilinear Schrödinger equation with critical Sobolev exponent
2001 · Jan Chabrowski, Andrzej Szulkin · Proceedings of the American Mathematical Society · 69
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On the Schrödinger equation involving a critical Sobolev exponent and magnetic field
2005 · Jan Chabrowski, Andrzej Szulkin · Topological Methods in Nonlinear Analysis · 65
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Morse theory and existence of periodic solutions of convex hamiltonian systems
1988 · Andrzej Szulkin · Bulletin de la Société mathématique de France · 53
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Positive solutions of variational inequalities: A degree-theoretic approach
1985 · Andrzej Szulkin · Journal of Differential Equations · 47
p-Laplacian problems where the nonlinearity crosses an eigenvalue
2005 · Kanishka Perera, Andrzej Szulkin · Discrete and Continuous Dynamical Systems · 45
An index theory and existence of multiple brake orbits for star-shaped Hamiltonian systems
1989 · Andrzej Szulkin · Mathematische Annalen · 41
A simple variational approach to weakly coupled competitive elliptic systems
2019 · Mónica Clapp, Andrzej Szulkin · Nonlinear Differential Equations and Applications NoDEA · 37
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Homoclinic Solutions of Hamiltonian Systems with Symmetry
1999 · Gianni Arioli, Andrzej Szulkin · Journal of Differential Equations · 37
Works count: 90
Citation count: 4,105
H-index: 28
I10-index: 49
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