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• Necessary conditions for finite critical sets. Maps with infinite critical sets

  Ioan Radu Peter, Cornel Pintea

  739 - 749

  2016-06-01
• Resonant Robin problems with indefinite and unbounded potential

  Nikolaos S. Papageorgiou, George Smyrlis

  51 - 74

  2016-10-05
• Nonlinear noncoercive Neumann problems with a reaction concave near the origin

  Pasquale Candito, Giuseppina D'Aguì, Nikolaos S. Papageorgiou

  289 - 317

  2016-03-01
• Some remarks on the critical point theory

  Chong Li

  223 - 234

  2007-12-01
• The size of some critical sets by means of dimension and algebraic $\varphi$-category

  Cornel Pintea

  395 - 407

  2010-04-23
• Existence of solutions to a semilinear elliptic boundary value problem with augmented Morse index bigger than two

  Alfonso Castro, Ivan Ventura

  233 - 244

  2016-11-23
• Multiplicity theorems for resonant and superlinear nonhomogeneous elliptic equations

  Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu

  283 - 320

  2016-07-06
• The Conley index and the critical groups via an extension of Gromoll-Meyer theory

  Kung Ching Chang, N. Ghoussoub

  77 - 93

  1996-03-01
• Strongly resonant Robin problems with idefinite and unbounded potential

  Nikolaos S. Papageorgiou, George Smyrlis

  511 - 527

  2016-12-16
• Resonant Neumann equations with indefinite linear part

  Roberto Livrea, Nikolaos S. Papageorgiou, Giuseppina Barletta

  469 - 491

  2015-06-01
• Existence of nontrivial solutions to Schrödinger systems with linear and nonlinear couplings via Morse theory

  Zhitao Zhang, Meng Yu, Xiaotian Zheng

  701 - 716

  2023-06-23
• Constant-sign and nodal solutions for a Neumann problem with $p$-Laplacian and equi-diffusive reaction term

  Salvatore A. Marano, Nikolaos S. Papageorgiou

  233 - 248

  2011-04-23
• Existence and multiplicity of solutions for resonant nonlinear Neumann problems

  Sergiu Aizicovici, Nikolaos S. Papageorgiou, Vasile Staicu

  235 - 252

  2010-04-23
• Nontrivial critical groups in $p$-Laplacian problems via the Yang index

  Kanishka Perera

  301 - 309

  2003-06-01
• Neumann problems with double resonance

  Donal O'Regan, Nikolaos S. Papageorgiou, George Smyrlis

  151 - 173

  2012-04-23
• Type II regions between curves of the Fučik spectrum and critical groups

  Kanishka Perera, Martin Schechter

  227 - 243

  1998-12-01
• Poincaré-Hopf type formulas on convex sets of Banach spaces

  Thomas Bartsch, E. Norman Dancer

  213 - 229

  2009-12-01
• An existence result for a class of quasilinear elliptic boundary value problems with jumping nonlinearities

  Kanishka Perera

  135 - 144

  2002-09-01
• Multiplicity results for some quasilinear elliptic problems

  Francisco Odair de Paiva, João Marcos do Ó, Everaldo Souto de Medeiros

  77 - 89

  2009-09-01
• Multiple solutions for asymptotically linear resonant elliptic problems

  Francisco Odair de Paiva

  227 - 247

  2003-06-01
• The relative cup-length in local Morse cohomology

  Thomas Rot, Maciej Starostka, Nils Waterstraat

  15 - 29

  2024-09-21
• On a $p$-superlinear Neumann $p$-Laplacian equation

  Sergiu Aizicovici, Nikolaos S. Papageorgiou, Vasile Staicu

  111 - 130

  2009-09-01
• Some results for jumping nonlinearities

  E. Norman Dancer

  221 - 235

  2002-06-01
• Lower semicontinuity of Kirchhoff-type energy functionals and spectral gaps on (sub)Riemannian manifolds

  Csaba Farkas, Sándor Kajántó, Csaba Varga

  743 - 760

  2023-07-16
• Multiple nontrivial solutions of Neumann $p$-Laplacian systems

  Dumitru Motreanu, Kanishka Perera

  41 - 48

  2009-09-01
• Some bifurcation results and multiple solutions for the $p$-Laplacian equation

  Mingzheng Sun, Jiabao Su, Leiga Zhao

  353 - 366

  2021-12-02
• Global multiplicity for parametric anisotropic Neumann (p,q)-equations

  Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu, Dušan D. Repovš

  393 - 422

  2023-02-26