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Author ID: willem.michel Recent zbMATH articles by "Willem, Michel"
Published as: Willem, Michel; Willem, M.; Willem, Michael
External Links: MGP · Wikidata · IdRef
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Serials

12 Rapport. Séminaire de Mathématique. Nouvelle Série
9 Journal of Differential Equations
6 Topological Methods in Nonlinear Analysis
5 Journal of Functional Analysis
5 Proceedings of the American Mathematical Society
5 Nonlinear Analysis. Theory, Methods & Applications
4 Differential and Integral Equations
4 Calculus of Variations and Partial Differential Equations
4 Communications in Contemporary Mathematics
3 Journal d’Analyse Mathématique
3 Journal of Mathematical Analysis and Applications
2 Archive for Rational Mechanics and Analysis
2 Bulletin of the Australian Mathematical Society
2 Bulletin de la Société Matheḿatique de Belgique. Série B
2 Annales de l’Institut Henri Poincaré. Analyse Non Linéaire
2 Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences, Série A
2 Journal of Fixed Point Theory and Applications
1 American Mathematical Monthly
1 Jahresbericht der Deutschen Mathematiker-Vereinigung (DMV)
1 Revue des Questions Scientifiques, 5. Série
1 Studia Mathematica
1 ZAMP. Zeitschrift für angewandte Mathematik und Physik
1 Annales des Sciences Mathématiques du Québec
1 Indiana University Mathematics Journal
1 Journal of Computational and Applied Mathematics
1 Journal für die Reine und Angewandte Mathematik
1 Rendiconti dell’Istituto di Matematica dell’Università di Trieste
1 Rivista di Matematica della Università di Parma. Serie IV
1 Zeitschrift für Analysis und ihre Anwendungen
1 Bollettino della Unione Matemàtica Italiana. Serie VI. C. Analisi Funzionale e Applicazioni
1 Communications in Partial Differential Equations
1 SIAM Journal on Mathematical Analysis
1 Bulletin de la Société Mathématique de Belgique. Série A
1 Comptes Rendus de l’Académie des Sciences. Série I
1 Bollettino della Unione Matemàtica Italiana. Serie VI. B
1 Bollettino della Unione Matemàtica Italiana. Serie VII. B
1 Bulletin of the Belgian Mathematical Society - Simon Stevin
1 NoDEA. Nonlinear Differential Equations and Applications
1 Discrete and Continuous Dynamical Systems
1 Journal of the European Mathematical Society (JEMS)
1 Portugaliae Mathematica. Nova Série
1 Advanced Nonlinear Studies
1 Comptes Rendus. Mathématique. Académie des Sciences, Paris
1 Boundary Value Problems
1 Bollettino della Unione Matematica Italiana. Series V. A
1 Applied Mathematical Sciences
1 Contemporary Mathematics
1 Enseignement des Mathématiques (Cassini)
1 Nouvelle Bibliothèque Mathématique
1 Pure and Applied Functional Analysis
1 Progress in Nonlinear Differential Equations and Their Applications
1 Cornerstones
1 L’Academie en Poche

Publications by Year

Citations contained in zbMATH Open

113 Publications have been cited 5,102 times in 3,928 Documents Cited by Year
Minimax theorems. Zbl 0856.49001
Willem, Michel
1996
Critical point theory and Hamiltonian systems. Zbl 0676.58017
Mawhin, Jean; Willem, Michel
1989
Homoclinic orbits for a class of Hamiltonian systems. Zbl 0759.58018
Omana, W.; Willem, M.
156
1992
On an elliptic equation with concave and convex nonlinearities. Zbl 0848.35039
Bartsch, Thomas; Willem, Michel
127
1995
Partial symmetry of least energy nodal solutions to some variational problems. Zbl 1206.35086
Bartsch, Thomas; Weth, Tobias; Willem, Michel
125
2005
Applications of local linking to critical point theory. Zbl 0820.58012
Li, Shujie; Willem, Michel
125
1995
Non-radial ground states for the Hénon equation. Zbl 1160.35415
Smets, Didier; Willem, Michel; Su, Jiabao
121
2002
Infinitely many radial solutions of a semilinear elliptic problem on \(\mathbb{R}^ N\). Zbl 0790.35020
Bartsch, Thomas; Willem, Michel
108
1993
Weighted Sobolev embedding with unbounded and decaying radial potentials. Zbl 1220.35026
Su, Jiabao; Wang, Zhi-Qiang; Willem, Michel
92
2007
Infinitely many nonradial solutions of a Euclidean scalar field equation. Zbl 0790.35021
Bartsch, Thomas; Willem, Michel
90
1993
Partial symmetry and asymptotic behavior for some elliptic variational problems. Zbl 1274.35026
Smets, Didier; Willem, Michel
86
2003
Solitary waves with prescribed speed on infinite lattices. Zbl 0889.34059
Smets, D.; Willem, M.
79
1997
Nonlinear Schrödinger equations with unbounded and decaying radial potentials. Zbl 1141.35056
Su, Jiabao; Wang, Zhi-Qiang; Willem, Michel
74
2007
Multiple solutions of the periodic boundary value problem for some forced pendulum-type equations. Zbl 0557.34036
Mawhin, J.; Willem, M.
73
1984
On a Schrödinger equation with periodic potential and spectrum point zero. Zbl 1030.35068
Willem, Michel; Zou, Wenming
73
2003
Nontrivial solution of a semilinear Schrödinger equation. Zbl 0864.35036
Troestler, C.; Willem, M.
67
1996
Extrema problems with critical Sobolev exponents on unbounded domains. Zbl 0851.49004
Ben-Naoum, A. K.; Troestler, C.; Willem, M.
64
1996
Elliptic problems with critical exponents and Hardy potentials. Zbl 1163.35383
Ruiz, D.; Willem, M.
60
2003
Critical points of convex perturbations of some indefinite quadratic forms and semilinear boundary value problems at resonance. Zbl 0678.35091
Mawhin, J.; Willem, M.
49
1986
Singular minimization problems. Zbl 0954.35074
Wang, Z.-Q.; Willem, M.
47
2000
Variational methods and semilinear elliptic equations. Zbl 0656.35044
Mawhin, J.; Ward, J. R. jun.; Willem, M.
45
1986
Functional analysis. Fundamentals and applications. Zbl 1284.46001
Willem, Michel
43
2013
Eigenvalue problems with indefinite weight. Zbl 0931.35121
Szulkin, Andrzej; Willem, Michel
42
1999
Caffarelli–Kohn–Nirenberg inequalities with remainder terms. Zbl 1037.26014
Wang, Zhi-Qiang; Willem, Michel
42
2003
A Sobolev inequality with remainder term and critical equations on domains with topology for the polyharmonic operator. Zbl 1059.31006
Bartsch, Thomas; Weth, Tobias; Willem, Michel
42
2003
Homoclinic orbits of a Hamiltonian system. Zbl 0997.37041
Ding, Yanheng; Willem, Michel
41
1999
A global compactness result for the \(p\)-Laplacian involving critical nonlinearities. Zbl 1193.35051
Mercuri, Carlo; Willem, Michel
37
2010
The Dirichlet problem for superlinear elliptic equations. Zbl 1207.35001
Bartsch, Thomas; Wang, Zhi-Qiang; Willem, Michael
37
2005
Remarks on a Hardy-Sobolev inequality. Zbl 1035.35020
Secchi, Simone; Smets, Didier; Willem, Michel
32
2003
Oscillations forcees de systèmes hamiltoniens. Zbl 0482.70020
Willem, Michel
28
1981
Limit relative category and critical point theory. Zbl 0794.58007
Fournier, G.; Lupo, D.; Ramos, M.; Willem, M.
25
1994
Partial symmetry of vector solutions for elliptic systems. Zbl 1298.35206
Wang, Zhi-Qiang; Willem, Michel
24
2014
Multiple solutions of the forced double pendulum equation. Zbl 0683.70022
Fournier, G.; Willem, M.
24
1989
Symmetry of solutions of semilinear elliptic problems. Zbl 1148.35025
Van Schaftingen, Jean; Willem, Michel
23
2008
Multiple solutions for asymptotically linear boundary value problems in which the nonlinearity crosses at least one eigenvalue. Zbl 0933.35066
Li, Shujie; Willem, Michel
22
1998
Necessary and sufficient conditions for the solvability of a nonlinear two-point boundary value problem. Zbl 0559.34014
Mawhin, J.; Ward, J. R.; Willem, M.
21
1985
Existence and multiplicity results for homogeneous second order differential equations. Zbl 0808.58013
Ben Naoum, A. K.; Troestler, C.; Willem, M.
20
1994
Subharmonic oscillations of convex Hamiltonian systems. Zbl 0579.34030
Willem, M.
19
1985
Positive solutions for elliptic equations with critical growth in unbounded domains. Zbl 0968.35050
Ramos, M.; Wang, Z.-Q.; Willem, M.
19
2000
Subharmonic oscillations of forced pendulum-type equations. Zbl 0708.34028
Fonda, A.; Willem, M.
18
1989
Least energy solutions of a critical Neumann problem with a weight. Zbl 1221.35116
Chabrowski, J.; Willem, M.
18
2002
Set transformations, symmetrizations and isoperimetric inequalities. Zbl 1453.26034
Van Schaftingen, J.; Willem, M.
18
2004
Relative category and the calculus of variations. Zbl 0719.58010
Fournier, G.; Willem, M.
17
1990
Periodic solutions of non-autonomous Hamiltonian systems with symmetries. Zbl 0794.58037
Bartsch, Th.; Willem, M.
17
1994
A note on Palais-Smale condition and coercivity. Zbl 0782.58019
Caklovic, L.; Li, Shujie; Willem, M.
16
1990
Real harmonic analysis. (Analyse harmonique réelle.) Zbl 0839.43001
Willem, Michel
16
1995
Solutions of a system of diffusion equations. Zbl 1134.35094
Ding, Yanheng; Luan, Shixia; Willem, Michel
15
2007
Subharmonic solutions for second order differential equations. Zbl 0803.34029
Fonda, A.; Ramos, M.; Willem, M.
14
1993
Origin and evolution of the Palais-Smale condition in critical point theory. Zbl 1205.58009
Mawhin, Jean; Willem, Michel
12
2010
Ground state solutions for a semilinear problem with critical exponent. Zbl 1240.35205
Szulkin, Andrzej; Weth, Tobias; Willem, Michel
12
2009
Periodic solutions of symmetric wave equations. Zbl 0909.35092
Ding, Yanheng; Li, Shujie; Willem, Michel
12
1998
Periodic oscillations of odd second order Hamiltonian systems. Zbl 0582.58014
Willem, Michel
11
1984
Existence of many positive solutions of semilinear elliptic equations on an annulus. Zbl 0911.35051
Wang, Zhi-Qiang; Willem, Michel
10
1999
Generic results for the existence of nondegenerate periodic solutions of some differential systems with periodic nonlinearities. Zbl 0742.34043
Martinez-Amores, P.; Mawhin, J.; Ortega, R.; Willem, M.
9
1991
On some quasilinear critical problems. Zbl 1182.35090
De Valeriola, Sébastien; Willem, Michel
9
2009
Elementary functional analysis. (Analyse fonctionnelle élémentaire.) Zbl 1089.46001
Willem, Michel
9
2003
Subharmonic oscillations of a semilinear wave equation. Zbl 0588.35054
Willem, Michel
8
1985
Multiple critical points of invariant functionals and applications. Zbl 0628.35037
Costa, D. G.; Willem, M.
8
1986
Principles of functional analysis. (Principes d’analyse fonctionnelle.) Zbl 1205.46001
Willem, Michel
8
2007
Density of the range of potential operators. Zbl 0478.49012
Willem, Michel
8
1981
A semilinear elliptic equation on \(\mathbb R^N\) with unbounded coefficients. Zbl 1094.35054
Sintzoff, P.; Willem, M.
8
2002
Hardy-Sobolev inequalities with remainder terms. Zbl 1033.35044
Rădulescu, Vicenţiu; Smets, Didier; Willem, Michel
8
2002
Morse theory and nonlinear differential equations. Zbl 1236.58023
Bartsch, Thomas; Szulkin, Andrzej; Willem, Michel
7
2008
A multiplicity result for the generalized Kadomtsev-Petviashvili equation. Zbl 0902.35100
Wang, Z.-Q.; Willem, M.
7
1996
Bifurcation, symmetry and Morse theory. Zbl 0676.58020
Willem, Michel
6
1989
Least energy nodal solutions of the Brezis-Nirenberg problem in dimension \(N=5\). Zbl 1178.35175
Roselli, Paolo; Willem, Michel
6
2009
Remarks on the dual least action principle. Zbl 0528.58006
Willem, M.
5
1982
Lectures on critical point theory. (Given at the University of Brasilia in January and February 1983). Zbl 0541.58016
Willem, Michel
5
1983
Periodic solutions of wave equations with jumping nonlinearities. Zbl 0429.35049
Willem, Michel
5
1980
A decomposition lemma and critical minimization problems. Zbl 1194.35122
Willem, Michel
5
2003
Points critiques multiples de fonctionnelles invariantes. (Multiple critical points of invariant functionals). Zbl 0581.58010
Costa, David; Willem, Michel
4
1984
Schrödinger equation with multiparticle potential and critical nonlinearity. Zbl 1195.35145
Chabrowski, Jan; Szulkin, Andrzej; Willem, Michel
4
2009
A Liouville theorem for the \(p\)-Laplacian and related questions. Zbl 1421.35170
Farina, Alberto; Mercuri, Carlo; Willem, Michel
4
2019
Densité de l’image de la différence de deux opérateurs. Zbl 0436.47051
Willem, Michel
4
1980
Topology and semilinear equations at resonance in Hilbert space. Zbl 0472.47036
Willem, Michel
4
1981
Existence and multiplicity results for semicoercive unilateral problems. Zbl 0808.58015
Goeleven, D.; Nguyen, V. H.; Willem, M.
4
1994
Some critical minimization problems for functions of bounded variations. Zbl 1201.49006
Bartsch, Thomas; Willem, Michel
4
2010
Lusternik-Schnirelman theory and asymptotically linear Hamiltonian systems. Zbl 0622.34044
Costa, D.; Willem, M.
3
1987
Time-periodic solutions of boundary value problems for nonlinear heat, telegraph and beam equations. Zbl 0622.35004
Nkashama, M. N.; Willem, M.
3
1987
Variational methods and boundary value problems for vector second order differential equations and applications to the pendulum equation. Zbl 0563.34048
Mawhin, J.; Willem, M.
3
1984
Extremal functions for the Caffarelli-Kohn-Nirenberg inequalities: A simple proof of the symmetry. Zbl 1171.35041
Bouchez, Vincent; Willem, Michel
3
2009
The limiting case for strongly indefinite functionals. Zbl 0817.58006
Fournier, G.; Timoumi, M.; Willem, M.
3
1993
A convexity inequality. Zbl 1037.26019
Roselli, Paolo; Willem, Michel
3
2002
Density, spectral theory and homoclinics for singular Sturm-Liouville systems. Zbl 0816.34016
De Coster, C.; Willem, M.
3
1994
Multiple periodic solutions of infinite-dimensional pendulum-like equations. Zbl 1457.34066
Fonda, Alessandro; Mawhin, Jean; Willem, Michel
2
2020
On the generalized Morse lemma. Zbl 0605.58016
Mawhin, J.; Willem, M.
2
1985
Periodic solutions of the boundary value problem for the nonlinear heat equation. Zbl 0555.35062
Nkashama, M. N.; Willem, M.
2
1984
On some nonlinear equations with critical exponents. Zbl 1166.35021
Brezis, Haïm; Willem, Michel
2
2008
Aspects of Morse theory. Zbl 0723.58010
Willem, Michel
2
1987
A relative isoperimetric inequality. Zbl 1254.26032
Brock, Friedemann; Willem, Michel
2
2012
Range of nonlinear perturbations of linear operators with an infinite dimensional kernel. Zbl 0446.47059
Mawhin, J.; Willem, M.
2
1980
Jean Mawhin’s contributions to critical point theory. Zbl 1295.35007
Willem, Michel
2
2013
Linear elliptic systems involving finite Radon measures. Zbl 1161.35374
Rădulescu, Vicenţiu; Willem, Michel
2
2003
Periodic solutions of some nonlinear second order differential equations in Hilbert spaces. Zbl 0599.34049
Mawhin, Jean; Willem, Michel
1
1981
Periodic solutions of convex Hamiltonian systems. Zbl 0626.35013
Willem, Michel
1
1984
Nonlinear elliptic partial differential equations. Workshop in celebration of Jean-Pierre Gossez’s 65th birthday, Bruxelles, Belgium, September 2–4, 2009. Zbl 1214.35002
1
2011
Simple variational methods for unbounded potentials. Zbl 0704.58012
Fournier, G.; Willem, M.
1
1989
Periodic solutions of nonlinear differential equations in Hilbert spaces. Zbl 0419.34060
Mawhin, Jean; Willem, Michel
1
1978
Semilinear elliptic equations in \(\mathbb{R} ^ N\) with almost periodic or unbounded forcing term. Zbl 0861.34023
Fournier, Gilles; Szulkin, Andrzej; Willem, Michel
1
1996
Periodic solutions of symmetric wave equations. Zbl 0860.35007
Ding, Y.; Li, S.; Willem, M.
1
1996
Multiple periodic solutions of infinite-dimensional pendulum-like equations. Zbl 1457.34066
Fonda, Alessandro; Mawhin, Jean; Willem, Michel
2
2020
A Liouville theorem for the \(p\)-Laplacian and related questions. Zbl 1421.35170
Farina, Alberto; Mercuri, Carlo; Willem, Michel
4
2019
Partial symmetry of vector solutions for elliptic systems. Zbl 1298.35206
Wang, Zhi-Qiang; Willem, Michel
24
2014
Functional analysis. Fundamentals and applications. Zbl 1284.46001
Willem, Michel
43
2013
Jean Mawhin’s contributions to critical point theory. Zbl 1295.35007
Willem, Michel
2
2013
A relative isoperimetric inequality. Zbl 1254.26032
Brock, Friedemann; Willem, Michel
2
2012
Nonlinear elliptic partial differential equations. Workshop in celebration of Jean-Pierre Gossez’s 65th birthday, Bruxelles, Belgium, September 2–4, 2009. Zbl 1214.35002
1
2011
Existence of nodal solutions for some nonlinear elliptic problems. Zbl 1233.35081
de Valeriola, Sébastien; Willem, Michel
1
2011
A global compactness result for the \(p\)-Laplacian involving critical nonlinearities. Zbl 1193.35051
Mercuri, Carlo; Willem, Michel
37
2010
Origin and evolution of the Palais-Smale condition in critical point theory. Zbl 1205.58009
Mawhin, Jean; Willem, Michel
12
2010
Some critical minimization problems for functions of bounded variations. Zbl 1201.49006
Bartsch, Thomas; Willem, Michel
4
2010
Ground state solutions for a semilinear problem with critical exponent. Zbl 1240.35205
Szulkin, Andrzej; Weth, Tobias; Willem, Michel
12
2009
On some quasilinear critical problems. Zbl 1182.35090
De Valeriola, Sébastien; Willem, Michel
9
2009
Least energy nodal solutions of the Brezis-Nirenberg problem in dimension \(N=5\). Zbl 1178.35175
Roselli, Paolo; Willem, Michel
6
2009
Schrödinger equation with multiparticle potential and critical nonlinearity. Zbl 1195.35145
Chabrowski, Jan; Szulkin, Andrzej; Willem, Michel
4
2009
Extremal functions for the Caffarelli-Kohn-Nirenberg inequalities: A simple proof of the symmetry. Zbl 1171.35041
Bouchez, Vincent; Willem, Michel
3
2009
Symmetry of solutions of semilinear elliptic problems. Zbl 1148.35025
Van Schaftingen, Jean; Willem, Michel
23
2008
Morse theory and nonlinear differential equations. Zbl 1236.58023
Bartsch, Thomas; Szulkin, Andrzej; Willem, Michel
7
2008
On some nonlinear equations with critical exponents. Zbl 1166.35021
Brezis, Haïm; Willem, Michel
2
2008
Weighted Sobolev embedding with unbounded and decaying radial potentials. Zbl 1220.35026
Su, Jiabao; Wang, Zhi-Qiang; Willem, Michel
92
2007
Nonlinear Schrödinger equations with unbounded and decaying radial potentials. Zbl 1141.35056
Su, Jiabao; Wang, Zhi-Qiang; Willem, Michel
74
2007
Solutions of a system of diffusion equations. Zbl 1134.35094
Ding, Yanheng; Luan, Shixia; Willem, Michel
15
2007
Principles of functional analysis. (Principes d’analyse fonctionnelle.) Zbl 1205.46001
Willem, Michel
8
2007
Hardy’s inequality on exterior domains. Zbl 1089.26012
Chabrowski, J.; Willem, M.
1
2006
Partial symmetry of least energy nodal solutions to some variational problems. Zbl 1206.35086
Bartsch, Thomas; Weth, Tobias; Willem, Michel
125
2005
The Dirichlet problem for superlinear elliptic equations. Zbl 1207.35001
Bartsch, Thomas; Wang, Zhi-Qiang; Willem, Michael
37
2005
On multiple solutions of the exterior Neumann problem involving critical Sobolev exponent. Zbl 1256.35015
Chabrowski, Jan; Willem, Michel
1
2005
Set transformations, symmetrizations and isoperimetric inequalities. Zbl 1453.26034
Van Schaftingen, J.; Willem, M.
18
2004
Partial symmetry and asymptotic behavior for some elliptic variational problems. Zbl 1274.35026
Smets, Didier; Willem, Michel
86
2003
On a Schrödinger equation with periodic potential and spectrum point zero. Zbl 1030.35068
Willem, Michel; Zou, Wenming
73
2003
Elliptic problems with critical exponents and Hardy potentials. Zbl 1163.35383
Ruiz, D.; Willem, M.
60
2003
Caffarelli–Kohn–Nirenberg inequalities with remainder terms. Zbl 1037.26014
Wang, Zhi-Qiang; Willem, Michel
42
2003
A Sobolev inequality with remainder term and critical equations on domains with topology for the polyharmonic operator. Zbl 1059.31006
Bartsch, Thomas; Weth, Tobias; Willem, Michel
42
2003
Remarks on a Hardy-Sobolev inequality. Zbl 1035.35020
Secchi, Simone; Smets, Didier; Willem, Michel
32
2003
Elementary functional analysis. (Analyse fonctionnelle élémentaire.) Zbl 1089.46001
Willem, Michel
9
2003
A decomposition lemma and critical minimization problems. Zbl 1194.35122
Willem, Michel
5
2003
Linear elliptic systems involving finite Radon measures. Zbl 1161.35374
Rădulescu, Vicenţiu; Willem, Michel
2
2003
Non-radial ground states for the Hénon equation. Zbl 1160.35415
Smets, Didier; Willem, Michel; Su, Jiabao
121
2002
Least energy solutions of a critical Neumann problem with a weight. Zbl 1221.35116
Chabrowski, J.; Willem, M.
18
2002
A semilinear elliptic equation on \(\mathbb R^N\) with unbounded coefficients. Zbl 1094.35054
Sintzoff, P.; Willem, M.
8
2002
Hardy-Sobolev inequalities with remainder terms. Zbl 1033.35044
Rădulescu, Vicenţiu; Smets, Didier; Willem, Michel
8
2002
A convexity inequality. Zbl 1037.26019
Roselli, Paolo; Willem, Michel
3
2002
Singular minimization problems. Zbl 0954.35074
Wang, Z.-Q.; Willem, M.
47
2000
Positive solutions for elliptic equations with critical growth in unbounded domains. Zbl 0968.35050
Ramos, M.; Wang, Z.-Q.; Willem, M.
19
2000
Eigenvalue problems with indefinite weight. Zbl 0931.35121
Szulkin, Andrzej; Willem, Michel
42
1999
Homoclinic orbits of a Hamiltonian system. Zbl 0997.37041
Ding, Yanheng; Willem, Michel
41
1999
Existence of many positive solutions of semilinear elliptic equations on an annulus. Zbl 0911.35051
Wang, Zhi-Qiang; Willem, Michel
10
1999
Multiple solutions for asymptotically linear boundary value problems in which the nonlinearity crosses at least one eigenvalue. Zbl 0933.35066
Li, Shujie; Willem, Michel
22
1998
Periodic solutions of symmetric wave equations. Zbl 0909.35092
Ding, Yanheng; Li, Shujie; Willem, Michel
12
1998
Solitary waves with prescribed speed on infinite lattices. Zbl 0889.34059
Smets, D.; Willem, M.
79
1997
Minimax theorems. Zbl 0856.49001
Willem, Michel
1996
Nontrivial solution of a semilinear Schrödinger equation. Zbl 0864.35036
Troestler, C.; Willem, M.
67
1996
Extrema problems with critical Sobolev exponents on unbounded domains. Zbl 0851.49004
Ben-Naoum, A. K.; Troestler, C.; Willem, M.
64
1996
A multiplicity result for the generalized Kadomtsev-Petviashvili equation. Zbl 0902.35100
Wang, Z.-Q.; Willem, M.
7
1996
Semilinear elliptic equations in \(\mathbb{R} ^ N\) with almost periodic or unbounded forcing term. Zbl 0861.34023
Fournier, Gilles; Szulkin, Andrzej; Willem, Michel
1
1996
Periodic solutions of symmetric wave equations. Zbl 0860.35007
Ding, Y.; Li, S.; Willem, M.
1
1996
On an elliptic equation with concave and convex nonlinearities. Zbl 0848.35039
Bartsch, Thomas; Willem, Michel
127
1995
Applications of local linking to critical point theory. Zbl 0820.58012
Li, Shujie; Willem, Michel
125
1995
Real harmonic analysis. (Analyse harmonique réelle.) Zbl 0839.43001
Willem, Michel
16
1995
Limit relative category and critical point theory. Zbl 0794.58007
Fournier, G.; Lupo, D.; Ramos, M.; Willem, M.
25
1994
Existence and multiplicity results for homogeneous second order differential equations. Zbl 0808.58013
Ben Naoum, A. K.; Troestler, C.; Willem, M.
20
1994
Periodic solutions of non-autonomous Hamiltonian systems with symmetries. Zbl 0794.58037
Bartsch, Th.; Willem, M.
17
1994
Existence and multiplicity results for semicoercive unilateral problems. Zbl 0808.58015
Goeleven, D.; Nguyen, V. H.; Willem, M.
4
1994
Density, spectral theory and homoclinics for singular Sturm-Liouville systems. Zbl 0816.34016
De Coster, C.; Willem, M.
3
1994
Multiple solutions of semi-linear elliptic equations on \(\mathbb{R}^ N\). Zbl 0812.35007
Munyamarere, François; Willem, Michel
1
1994
Infinitely many radial solutions of a semilinear elliptic problem on \(\mathbb{R}^ N\). Zbl 0790.35020
Bartsch, Thomas; Willem, Michel
108
1993
Infinitely many nonradial solutions of a Euclidean scalar field equation. Zbl 0790.35021
Bartsch, Thomas; Willem, Michel
90
1993
Subharmonic solutions for second order differential equations. Zbl 0803.34029
Fonda, A.; Ramos, M.; Willem, M.
14
1993
The limiting case for strongly indefinite functionals. Zbl 0817.58006
Fournier, G.; Timoumi, M.; Willem, M.
3
1993
Extrema problems with critical Sobolev exponents on unbounded domains. Zbl 0844.58077
Ben-Naoum, A. K.; Troestler, C.; Willem, M.
1
1993
On an elliptic equation with concave and convex nonlinearities. Zbl 0837.35049
Bartsch, Thomas; Willem, Michel
1
1993
Homoclinic orbits for a class of Hamiltonian systems. Zbl 0759.58018
Omana, W.; Willem, M.
156
1992
Existence and multiplicity results for homogeneous second order differential equations. Zbl 0837.34029
Ben-Naoum, A. K.; Troestler, C.; Willem, M.
1
1992
A lemma of quantitative deformation in the variational calculus. (Abstract). (Un lemme de déformation quantitatif en calcul des variation. (Resumée).) Zbl 0850.58009
Willem, M.
1
1992
Generic results for the existence of nondegenerate periodic solutions of some differential systems with periodic nonlinearities. Zbl 0742.34043
Martinez-Amores, P.; Mawhin, J.; Ortega, R.; Willem, M.
9
1991
Relative category and the calculus of variations. Zbl 0719.58010
Fournier, G.; Willem, M.
17
1990
A note on Palais-Smale condition and coercivity. Zbl 0782.58019
Caklovic, L.; Li, Shujie; Willem, M.
16
1990
Critical point theory and Hamiltonian systems. Zbl 0676.58017
Mawhin, Jean; Willem, Michel
1989
Multiple solutions of the forced double pendulum equation. Zbl 0683.70022
Fournier, G.; Willem, M.
24
1989
Subharmonic oscillations of forced pendulum-type equations. Zbl 0708.34028
Fonda, A.; Willem, M.
18
1989
Bifurcation, symmetry and Morse theory. Zbl 0676.58020
Willem, Michel
6
1989
Simple variational methods for unbounded potentials. Zbl 0704.58012
Fournier, G.; Willem, M.
1
1989
Lusternik-Schnirelman theory and asymptotically linear Hamiltonian systems. Zbl 0622.34044
Costa, D.; Willem, M.
3
1987
Time-periodic solutions of boundary value problems for nonlinear heat, telegraph and beam equations. Zbl 0622.35004
Nkashama, M. N.; Willem, M.
3
1987
Aspects of Morse theory. Zbl 0723.58010
Willem, Michel
2
1987
Critical points of convex perturbations of some indefinite quadratic forms and semilinear boundary value problems at resonance. Zbl 0678.35091
Mawhin, J.; Willem, M.
49
1986
Variational methods and semilinear elliptic equations. Zbl 0656.35044
Mawhin, J.; Ward, J. R. jun.; Willem, M.
45
1986
Multiple critical points of invariant functionals and applications. Zbl 0628.35037
Costa, D. G.; Willem, M.
8
1986
Necessary and sufficient conditions for the solvability of a nonlinear two-point boundary value problem. Zbl 0559.34014
Mawhin, J.; Ward, J. R.; Willem, M.
21
1985
Subharmonic oscillations of convex Hamiltonian systems. Zbl 0579.34030
Willem, M.
19
1985
Subharmonic oscillations of a semilinear wave equation. Zbl 0588.35054
Willem, Michel
8
1985
On the generalized Morse lemma. Zbl 0605.58016
Mawhin, J.; Willem, M.
2
1985
Multiple solutions of the periodic boundary value problem for some forced pendulum-type equations. Zbl 0557.34036
Mawhin, J.; Willem, M.
73
1984
Periodic oscillations of odd second order Hamiltonian systems. Zbl 0582.58014
Willem, Michel
11
1984
Points critiques multiples de fonctionnelles invariantes. (Multiple critical points of invariant functionals). Zbl 0581.58010
Costa, David; Willem, Michel
4
1984
Variational methods and boundary value problems for vector second order differential equations and applications to the pendulum equation. Zbl 0563.34048
Mawhin, J.; Willem, M.
3
1984
Periodic solutions of the boundary value problem for the nonlinear heat equation. Zbl 0555.35062
Nkashama, M. N.; Willem, M.
2
1984
Periodic solutions of convex Hamiltonian systems. Zbl 0626.35013
Willem, Michel
1
1984
Lectures on critical point theory. (Given at the University of Brasilia in January and February 1983). Zbl 0541.58016
Willem, Michel
5
1983
Remarks on the dual least action principle. Zbl 0528.58006
Willem, M.
5
1982
...and 13 more Documents
all top 5

Cited by 2,451 Authors

152 Tang, Xianhua
74 Alves, Claudianor Oliveira
56 Zou, Wenming
55 Miyagaki, Olimpio Hiroshi
54 Chen, Haibo
48 Ding, Yanheng
48 Wang, Zhi-Qiang
47 Tang, Chun-Lei
46 Papageorgiou, Nikolaos S.
44 Su, Jiabao
39 Shi, Haiping
39 Yang, Minbo
34 Figueiredo, Giovany Malcher
34 Rădulescu, Vicenţiu D.
32 Chen, Sitong
32 Willem, Michel
31 Ma, Shiwang
31 Schechter, Martin
31 Wu, Tsungfang
31 Wu, Xian
31 Zhao, Fukun
30 Zhang, Fubao
29 Van Schaftingen, Jean
28 Chen, Guanwei
27 Li, Shujie
27 Liu, Xia
27 Wang, Jun
27 Zhang, Zhitao
26 Mawhin, Jean L.
25 Zhang, Jihui
25 Zhang, Wen
24 Bartsch, Thomas J.
24 Chen, Peng
24 Do Ó, João M. Bezerra
24 Wu, Xingping
24 Yu, Jian-She
24 Zhang, Ziheng
23 Huang, Yisheng
23 Sun, Juntao
23 Weth, Tobias
23 Zhang, Yuanbiao
22 Chen, Jianqing
22 He, Xiaoming
22 Xu, Junxiang
22 Zanolin, Fabio
22 Zhang, Jian
21 Ambrosio, Vincenzo
21 Chen, Shaowei
21 Peng, Shuangjie
21 Szulkin, Andrzej
20 Clapp, Mónica
20 Ge, Weigao
19 Liang, Sihua
19 Lin, Xiaoyan
19 Tang, Chunlei
19 Tian, Yu
18 Cheng, Bitao
18 Furtado, Marcelo Fernandes
18 Kajikiya, Ryuji
18 Li, Yongkun
18 Mao, Anmin
18 O’Regan, Donal
18 Zhang, Xingyong
17 Deng, Yinbin
17 Kristály, Alexandru
17 Liu, Shibo
17 Teng, Kaimin
17 Terracini, Susanna
17 Yuan, Rong
17 Zhao, Leiga
16 Guo, Yuxia
16 Guo, Zhiming
16 Han, Zhiqing
16 Li, Fuyi
16 Molica Bisci, Giovanni
16 Motreanu, Dumitru
16 Nieto Roig, Juan Jose
16 Qin, Dongdong
16 Wei, Juncheng
16 Zhang, Binlin
15 Liu, Zhaoli
15 Repovš, Dušan D.
15 Squassina, Marco
15 Zhou, Jianwen
14 Badiale, Marino
14 Bonheure, Denis
14 Carrião, Paulo Cesar
14 Chabrowski, Jan H.
14 Costa, David Goldstein
14 Liang, Zhanping
14 Medeiros, Everaldo S.
14 Ou, Zengqi
14 Rolando, Sergio
14 Tersian, Stepan Agop
14 Torres Ledesma, César Enrique
14 Zhang, Jianjun
13 Agarwal, Ravi P.
13 Albuquerque, Francisco S. B. Albuquerque
13 Cingolani, Silvia
13 Deng, Xiaoqing
...and 2,351 more Authors
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Cited in 287 Serials

439 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods
419 Journal of Mathematical Analysis and Applications
276 Journal of Differential Equations
135 Boundary Value Problems
128 Calculus of Variations and Partial Differential Equations
93 Applied Mathematics Letters
76 Journal of Mathematical Physics
72 Nonlinear Analysis. Theory, Methods & Applications
68 Communications on Pure and Applied Analysis
67 Applied Mathematics and Computation
67 Abstract and Applied Analysis
67 Nonlinear Analysis. Real World Applications
65 Computers & Mathematics with Applications
64 Communications in Contemporary Mathematics
64 Advances in Difference Equations
57 Journal of Functional Analysis
55 ZAMP. Zeitschrift für angewandte Mathematik und Physik
54 Discrete and Continuous Dynamical Systems
52 NoDEA. Nonlinear Differential Equations and Applications
47 Annali di Matematica Pura ed Applicata. Serie Quarta
46 Advanced Nonlinear Studies
42 Proceedings of the American Mathematical Society
37 Annales de l’Institut Henri Poincaré. Analyse Non Linéaire
35 Complex Variables and Elliptic Equations
32 Journal of Applied Mathematics and Computing
32 Journal of Fixed Point Theory and Applications
30 Mediterranean Journal of Mathematics
29 Applicable Analysis
26 Rocky Mountain Journal of Mathematics
26 Science China. Mathematics
26 Advances in Nonlinear Analysis
25 Topological Methods in Nonlinear Analysis
24 Transactions of the American Mathematical Society
23 Archive for Rational Mechanics and Analysis
23 Mathematical Methods in the Applied Sciences
21 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics
21 Journal of Dynamics and Differential Equations
21 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
19 Acta Mathematica Sinica. English Series
18 Acta Applicandae Mathematicae
18 Journal de Mathématiques Pures et Appliquées. Neuvième Série
18 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM
18 Journal of Function Spaces
17 Mathematische Nachrichten
17 The Journal of Geometric Analysis
17 Journal of Nonlinear Science and Applications
16 Journal of Difference Equations and Applications
16 Journal of Applied Analysis and Computation
15 Acta Mathematicae Applicatae Sinica. English Series
15 Communications in Partial Differential Equations
15 Electronic Journal of Differential Equations (EJDE)
14 Journal d’Analyse Mathématique
14 Nonlinearity
14 Advances in Mathematics
14 Journal of Inequalities and Applications
14 Discrete and Continuous Dynamical Systems. Series S
13 Monatshefte für Mathematik
12 Manuscripta Mathematica
12 Results in Mathematics
12 Discrete Dynamics in Nature and Society
12 Comptes Rendus. Mathématique. Académie des Sciences, Paris
12 Milan Journal of Mathematics
11 Archiv der Mathematik
11 Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Serie IX. Rendiconti Lincei. Matematica e Applicazioni
10 Mathematical and Computer Modelling
10 European Series in Applied and Industrial Mathematics (ESAIM): Control, Optimization and Calculus of Variations
10 Taiwanese Journal of Mathematics
10 Journal of the European Mathematical Society (JEMS)
10 Journal of Applied Mathematics
10 AIMS Mathematics
9 Mathematische Annalen
9 Proceedings of the Edinburgh Mathematical Society. Series II
9 Applications of Mathematics
9 Journal of Elliptic and Parabolic Equations
8 Chaos, Solitons and Fractals
8 Journal of Computational and Applied Mathematics
8 Science in China. Series A
8 Qualitative Theory of Dynamical Systems
8 Frontiers of Mathematics in China
7 Communications in Mathematical Physics
7 Indian Journal of Pure & Applied Mathematics
7 Israel Journal of Mathematics
7 International Journal of Mathematics and Mathematical Sciences
7 Mathematische Zeitschrift
7 Revista Matemática Iberoamericana
7 Journal of Mathematical Sciences (New York)
7 Fractional Calculus & Applied Analysis
7 Communications in Nonlinear Science and Numerical Simulation
7 SN Partial Differential Equations and Applications
6 Glasgow Mathematical Journal
6 Rendiconti del Seminario Matematico della Università di Padova
6 Zeitschrift für Analysis und ihre Anwendungen
6 Chinese Annals of Mathematics. Series B
6 Journal of Contemporary Mathematical Analysis. Armenian Academy of Sciences
6 Potential Analysis
6 Bulletin des Sciences Mathématiques
6 Mathematical Problems in Engineering
6 Journal of Dynamical and Control Systems
6 International Journal of Nonlinear Sciences and Numerical Simulation
6 Discrete and Continuous Dynamical Systems. Series B
...and 187 more Serials
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Cited in 53 Fields

2,710 Partial differential equations (35-XX)
815 Ordinary differential equations (34-XX)
780 Global analysis, analysis on manifolds (58-XX)
470 Dynamical systems and ergodic theory (37-XX)
422 Operator theory (47-XX)
241 Calculus of variations and optimal control; optimization (49-XX)
172 Difference and functional equations (39-XX)
157 Functional analysis (46-XX)
125 Mechanics of particles and systems (70-XX)
91 Real functions (26-XX)
71 Quantum theory (81-XX)
52 Differential geometry (53-XX)
41 Integral equations (45-XX)
35 Optics, electromagnetic theory (78-XX)
34 Numerical analysis (65-XX)
25 Mechanics of deformable solids (74-XX)
24 Fluid mechanics (76-XX)
21 Statistical mechanics, structure of matter (82-XX)
16 Potential theory (31-XX)
15 Algebraic topology (55-XX)
13 Biology and other natural sciences (92-XX)
12 Operations research, mathematical programming (90-XX)
12 Systems theory; control (93-XX)
10 Probability theory and stochastic processes (60-XX)
9 Topological groups, Lie groups (22-XX)
8 Relativity and gravitational theory (83-XX)
7 Measure and integration (28-XX)
7 Abstract harmonic analysis (43-XX)
7 Convex and discrete geometry (52-XX)
6 Harmonic analysis on Euclidean spaces (42-XX)
5 Manifolds and cell complexes (57-XX)
4 History and biography (01-XX)
4 Special functions (33-XX)
4 Game theory, economics, finance, and other social and behavioral sciences (91-XX)
3 Algebraic geometry (14-XX)
3 General topology (54-XX)
2 Linear and multilinear algebra; matrix theory (15-XX)
2 Several complex variables and analytic spaces (32-XX)
2 Approximations and expansions (41-XX)
2 Statistics (62-XX)
2 Computer science (68-XX)
2 Classical thermodynamics, heat transfer (80-XX)
1 General and overarching topics; collections (00-XX)
1 Combinatorics (05-XX)
1 Number theory (11-XX)
1 Field theory and polynomials (12-XX)
1 Category theory; homological algebra (18-XX)
1 Group theory and generalizations (20-XX)
1 Functions of a complex variable (30-XX)
1 Integral transforms, operational calculus (44-XX)
1 Astronomy and astrophysics (85-XX)
1 Geophysics (86-XX)
1 Information and communication theory, circuits (94-XX)

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