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1

R3is the Union of Disjoint Circles

Andrzej Szulkin

Journal:

American Mathematical Monthly

Year:

1983

Language:

english

File:

PDF, 263 KB

english, 1983

2

An Infinite Dimensional Morse Theory with Applications

Wojciech Kryszewski and Andrzej Szulkin

Journal:

Transactions of the American Mathematical Society

Year:

1997

Language:

english

File:

PDF, 4.74 MB

english, 1997

3

Ljusternik-Schnirelmann theory on C 1 -manifolds

Szulkin, Andrzej

Journal:

Annales de l'Institut Henri Poincare (C) Non Linear Analysis

Year:

1988

Language:

english

File:

PDF, 289 KB

english, 1988

4

Homoclinic Orbits for Asymptotically Linear Hamiltonian Systems

Andrzej Szulkin, Wenming Zou

Journal:

Journal of Functional Analysis

Year:

2001

Language:

english

File:

PDF, 320 KB

english, 2001

5

Ground state solutions for some indefinite variational problems

Andrzej Szulkin, Tobias Weth

Journal:

Journal of Functional Analysis

Year:

2009

Language:

english

File:

PDF, 233 KB

english, 2009

6

Cohomology and Morse theory for strongly indefinite functionals

Andrzej Szulkin

Journal:

Mathematische Zeitschrift

Year:

1992

Language:

english

File:

PDF, 1.94 MB

english, 1992

7

10.1090/S0002-9947-97-01963-6

Kryszewski, Wojciech, Szulkin, Andrzej

Journal:

Transactions of the American Mathematical Society

Year:

1997

Language:

english

File:

PDF, 731 KB

english, 1997

8

Generalized Nehari manifold and semilinear Schrödinger equation with weak monotonicity condition on the nonlinear term

de Paiva, Francisco Odair, Kryszewski, Wojciech, Szulkin, Andrzej

Journal:

Proceedings of the American Mathematical Society

Year:

2017

Language:

english

File:

PDF, 240 KB

english, 2017

9

R 3 is the Union of Disjoint Circles

Szulkin, Andrzej

Journal:

American Mathematical Monthly

Year:

1983

Language:

english

File:

PDF, 305 KB

english, 1983

10

A relative category and applications to critical point theory for strongly indefinite functionals

Andrzej Szulkin

Journal:

Nonlinear Analysis: Theory, Methods & Applications

Year:

1990

Language:

english

File:

PDF, 1.14 MB

english, 1990

11

An index theory and existence of multiple brake orbits for star-shaped Hamiltonian systems

Andrzej Szulkin

Journal:

Mathematische Annalen

Year:

1989

Language:

english

File:

PDF, 729 KB

english, 1989

12

Bound states for semilinear Schrödinger equations with sign-changing potential

Yanheng Ding, Andrzej Szulkin

Journal:

Calculus of Variations and Partial Differential Equations

Year:

2007

Language:

english

File:

PDF, 385 KB

english, 2007

13

Infinite-dimensional homology and multibump solutions

Wojciech Kryszewski, Andrzej Szulkin

Journal:

Journal of Fixed Point Theory and Applications

Year:

2009

Language:

english

File:

PDF, 621 KB

english, 2009

14

Positive solutions of variational inequalities: A degree-theoretic approach

Andrzej Szulkin

Journal:

Journal of Differential Equations

Year:

1985

Language:

english

File:

PDF, 989 KB

english, 1985

15

On symmetric solutions of an elliptic equation with a nonlinearity involving critical Sobolev exponent

Gabriele Bianchi, Jan Chabrowski, Andrzej Szulkin

Journal:

Nonlinear Analysis: Theory, Methods & Applications

Year:

1995

Language:

english

File:

PDF, 986 KB

english, 1995

16

Infinitely many solutions for semilinear elliptic problems with sign-changing weight functions

Jalilian, Yaghoub, Szulkin, Andrzej

Journal:

Applicable Analysis

Year:

2014

Language:

english

File:

PDF, 201 KB

english, 2014

17

AN ASYMPTOTICALLY PERIODIC SCHRÖDINGER EQUATION WITH INDEFINITE LINEAR PART

LI, GONGBAO, SZULKIN, ANDRZEJ

Journal:

Communications in Contemporary Mathematics

Year:

2002

Language:

english

File:

PDF, 282 KB

english, 2002

18

Multiple solutions to logarithmic Schrödinger equations with periodic potential

Squassina, Marco, Szulkin, Andrzej

Journal:

Calculus of Variations and Partial Differential Equations

Year:

2015

Language:

english

File:

PDF, 257 KB

english, 2015

19

Bifurcation from infinity for an asymptotically linear Schrödinger equation

Kryszewski, Wojciech, Szulkin, Andrzej

Journal:

Journal of Fixed Point Theory and Applications

Year:

2014

Language:

english

File:

PDF, 371 KB

english, 2014

20

Periodic and Bloch Solutions to a Magnetic Nonlinear Schrödinger Equation

Clapp, Mónica, Iturriaga, Renato, Szulkin, Andrzej

Journal:

Advanced Nonlinear Studies

Year:

2009

Language:

english

File:

PDF, 293 KB

english, 2009

21

Ground states of critical and supercritical problems of Brezis–Nirenberg type

Clapp, Mónica, Pistoia, Angela, Szulkin, Andrzej

Journal:

Annali di Matematica Pura ed Applicata (1923 -)

Year:

2016

Language:

english

File:

PDF, 517 KB

english, 2016

22

Erratum to: Multiple solutions to logarithmic Schrödinger equations with periodic potential

Squassina, Marco, Szulkin, Andrzej

Journal:

Calculus of Variations and Partial Differential Equations

Year:

2017

Language:

english

File:

PDF, 341 KB

english, 2017

23

Homoclinic Solutions of Hamiltonian Systems with Symmetry

Gianni Arioli, Andrzej Szulkin

Journal:

Journal of Differential Equations

Year:

1999

Language:

english

File:

PDF, 207 KB

english, 1999

24

Infinite Dimensional Cohomology Groups and Periodic Solutions of Asymptotically Linear Hamiltonian Systems

Andrzej Szulkin, Wenming Zou

Journal:

Journal of Differential Equations

Year:

2001

Language:

english

File:

PDF, 193 KB

english, 2001

25

On a class of variational inequalities involving gradient operators

Andrzej Szulkin

Journal:

Journal of Mathematical Analysis and Applications

Year:

1984

Language:

english

File:

PDF, 596 KB

english, 1984

26

Global structure of level sets of a class of nonlinear Fredholm mappings

Andrzej Szulkin

Journal:

Nonlinear Analysis: Theory, Methods & Applications

Year:

1981

Language:

english

File:

PDF, 665 KB

english, 1981

27

On the number of solutions of some semilinear elliptic boundary value problems

Andrzej Szulkin

Journal:

Nonlinear Analysis: Theory, Methods & Applications

Year:

1982

Language:

english

File:

PDF, 1.52 MB

english, 1982

28

Multiple solutions to a nonlinear Schrödinger equation with Aharonov–Bohm magnetic potential

Mónica Clapp, Andrzej Szulkin

Journal:

Nonlinear Differential Equations and Applications NoDEA

Year:

2010

Language:

english

File:

PDF, 311 KB

english, 2010

29

A Semilinear Schrödinger Equation in the Presence of a Magnetic Field

Gianni Arioli, Andrzej Szulkin

Journal:

Archive for Rational Mechanics and Analysis

Year:

2003

Language:

english

File:

PDF, 212 KB

english, 2003

30

Semilinear Elliptic Equations in $\mathbb{R}^N $ with Almost Periodic or Unbounded Forcing Term

Fournier, Gilles, Szulkin, Andrzej, Willem, Michel

Journal:

SIAM Journal on Mathematical Analysis

Year:

1996

Language:

english

File:

PDF, 680 KB

english, 1996

31

Multiple solutions for a quasilinear Schrödinger equation

Xiang-Dong Fang, Andrzej Szulkin

Journal:

Journal of Differential Equations

Year:

2013

Language:

english

File:

PDF, 259 KB

english, 2013

32

Multiple solutions to nonlinear Schrödinger equations with singular electromagnetic potential

Clapp, MÃ³nica, Szulkin, Andrzej

Journal:

Journal of Fixed Point Theory and Applications

Year:

2013

Language:

english

File:

PDF, 348 KB

english, 2013

33

A Concentration Phenomenon for Semilinear Elliptic Equations

Nils Ackermann, Andrzej Szulkin

Journal:

Archive for Rational Mechanics and Analysis

Year:

2013

Language:

english

File:

PDF, 220 KB

english, 2013

34

Sign-changing and symmetry-breaking solutions to singular problems

Szulkin, Andrzej, Waliullah, Shoyeb

Journal:

Complex Variables and Elliptic Equations

Year:

2012

Language:

english

File:

PDF, 209 KB

english, 2012

35

A logarithmic Schrödinger equation with asymptotic conditions on the potential

Ji, Chao, Szulkin, Andrzej

Journal:

Journal of Mathematical Analysis and Applications

Year:

2015

Language:

english

File:

PDF, 353 KB

english, 2015

36

10.1090/S0002-9939-01-06143-3

Chabrowski, Jan, Szulkin, Andrzej

Journal:

Proceedings of the American Mathematical Society

Year:

2002

Language:

english

File:

PDF, 201 KB

english, 2002

37

On a Semilinear Schrödinger Equation with Critical Sobolev Exponent

Jan Chabrowski and Andrzej Szulkin

Journal:

Proceedings of the American Mathematical Society

Year:

2002

Language:

english

File:

PDF, 328 KB

english, 2002

38

Minimax principles for lower semicontinuous functions and applications to nonlinear boundary value problems

Szulkin, Andrzej

Journal:

Annales de l'Institut Henri Poincare (C) Non Linear Analysis

Year:

1986

Language:

english

File:

PDF, 542 KB

english, 1986

39

A simple variational approach to weakly coupled competitive elliptic systems

Clapp, Mónica, Szulkin, Andrzej

Journal:

Nonlinear Differential Equations and Applications NoDEA

Year:

2019

Language:

english

File:

PDF, 452 KB

english, 2019

40

A simple variational approach to weakly coupled competitive elliptic systems

Clapp, Mónica, Szulkin, Andrzej

Journal:

Nonlinear Differential Equations and Applications NoDEA

Year:

2019

File:

PDF, 452 KB

2019

41

Multiple Solutions to a Nonlinear Curl–Curl Problem in $${\mathbb {R}}^3$$R3

Mederski, Jarosław, Schino, Jacopo, Szulkin, Andrzej

Journal:

Archive for Rational Mechanics and Analysis

Year:

2019

File:

PDF, 502 KB

2019

42

On some weakly coercive quasilinear problems with forcing

Szulkin, Andrzej, Willem, Michel

Journal:

Journal d'Analyse Mathématique

Year:

2020

File:

PDF, 161 KB

2020

43

Phase Separation, Optimal Partitions, and Nodal Solutions to the Yamabe Equation on the Sphere

Clapp, MÃ³nica, SaldaÃ±a, Alberto, Szulkin, Andrzej

Journal:

International Mathematics Research Notices

Year:

2020

File:

PDF, 281 KB

2020