Nikolaos S. Papageorgiou

According to our database, Nikolaos S. Papageorgiou authored at least 34 papers between 1996 and 2025.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2025

Singular double phase equations with a sign changing reaction.

Yunru Bai, Leszek Gasinski, Nikolaos S. Papageorgiou

Commun. Nonlinear Sci. Numer. Simul., 2025

2024

Anisotropic (p, q) Equation with Partially Concave Terms.

Leszek Gasinski, Gregoris Makrides, Nikolaos S. Papageorgiou

Symmetry, September, 2024

Positive solutions for singular problems with multivalued convection.

Yunru Bai, Leszek Gasinski, Nikolaos S. Papageorgiou

Commun. Nonlinear Sci. Numer. Simul., January, 2024

Anisotropic eigenvalue problems with singular and sign-changing terms.

Yunru Bai, Nikolaos S. Papageorgiou, Shengda Zeng

Commun. Nonlinear Sci. Numer. Simul., 2024

2023

Unbounded spectrum for a nonlinear eigenvalue problem with a variable exponent.

Zhenhai Liu, Nikolaos S. Papageorgiou

Appl. Math. Lett., November, 2023

Existence and Nonexistence of Positive Solutions for Perturbations of the Anisotropic Eigenvalue Problem.

Olena Andrusenko, Leszek Gasinski, Nikolaos S. Papageorgiou

Symmetry, February, 2023

Inverse Problems for Double-Phase Obstacle Problems with Variable Exponents.

Shengda Zeng, Nikolaos S. Papageorgiou, Patrick Winkert

J. Optim. Theory Appl., February, 2023

2022

Nonlinear Eigenvalue Problems for the Dirichlet (p, 2)-Laplacian.

Yunru Bai, Leszek Gasinski, Nikolaos S. Papageorgiou

Axioms, 2022

2021

A Multiplicity Theorem for Superlinear Double Phase Problems.

Beata Deregowska, Leszek Gasinski, Nikolaos S. Papageorgiou

Symmetry, 2021

Eigenvalue problems and their perturbations for the weighted (p, q)-Laplacian.

Leszek Gasinski, Nikolaos S. Papageorgiou

Commun. Nonlinear Sci. Numer. Simul., 2021

A singular (p, q)-equation with convection and a locally defined perturbation.

Nikolaos S. Papageorgiou, Calogero Vetro, Francesca Vetro

Appl. Math. Lett., 2021

2020

Constant Sign and nodal solutions for nonlinear Robin equations with Locally Defined Source Term.

Nikolaos S. Papageorgiou, Calogero Vetro, Francesca Vetro

Math. Model. Anal., 2020

2019

Nonlinear Dirichlet problems with sign changing drift coefficient.

Leszek Gasinski, Nikolaos S. Papageorgiou

Appl. Math. Lett., 2019

2018

Periodic solutions for a class of evolution inclusions.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu, Dusan Repovs

Comput. Math. Appl., 2018

Positive solutions for nonvariational Robin problems.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu, Dusan Repovs

Asymptot. Anal., 2018

Positive solutions for superdiffusive mixed problems.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu, Dusan Repovs

Appl. Math. Lett., 2018

2017

Nonhomogeneous Hemivariational Inequalities with Indefinite Potential and Robin Boundary Condition.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu, Dusan Repovs

J. Optim. Theory Appl., 2017

Robin problems with general potential and double resonance.

Nikolaos S. Papageorgiou, Calogero Vetro, Francesca Vetro

Appl. Math. Lett., 2017

Infinitely many nodal solutions for semilinear Robin problems with an indefinite linear part.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu

Appl. Math. Lett., 2017

2015

Combined effects of concave-convex nonlinearities and indefinite potential in some elliptic problems.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu

Asymptot. Anal., 2015

Bifurcation analysis for nonhomogeneous Robin problems with competing nonlinearities.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu

Appl. Math. Lett., 2015

Resonant Neumann problems with indefinite and unbounded potential.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu

Appl. Math. Lett., 2015

2014

Positive solutions for Neumann problems with indefinite and unbounded potential.

Nikolaos S. Papageorgiou, Vicentiu D. Radulescu

Appl. Math. Lett., 2014

2013

A pair of positive solutions for the Dirichlet p(z)-Laplacian with concave and convex nonlinearities.

Leszek Gasinski, Nikolaos S. Papageorgiou

J. Glob. Optim., 2013

2011

A bifurcation theorem for the p-logistic equation.

Sophia Th. Kyritsi, Nikolaos S. Papageorgiou

Appl. Math. Comput., 2011

2010

Nontrivial solutions for Neumann problems with an indefinite linear part.

Leszek Gasinski, Nikolaos S. Papageorgiou

Appl. Math. Comput., 2010

2007

A multiplicity theorem for the Neumann p-Laplacian with an asymmetric nonsmooth potential.

Giuseppina Barletta, Nikolaos S. Papageorgiou

J. Glob. Optim., 2007

2006

"Two Nontrivial Critical Points for Nonsmooth Functionals via Local Linking and Applications".

Dimitrios Kandilakis, Nikolaos C. Kourogenis, Nikolaos S. Papageorgiou

J. Glob. Optim., 2006

Nontrivial Solutions for Resonant Hemivariational Inequalities.

Zdzislaw Denkowski, Leszek Gasinski, Nikolaos S. Papageorgiou

J. Glob. Optim., 2006

2005

On the Existence of Positive Solutions for Hemivariational Inequalities Driven by the p-Laplacian.

Michael Filippakis, Leszek Gasinski, Nikolaos S. Papageorgiou

J. Glob. Optim., 2005

2002

Optimal control problems for a class of nonlinear evolution equations.

Nikolaos Halidias, Nikolaos S. Papageorgiou

Period. Math. Hung., 2002

Minimax control of nonlinear evolution equations.

Nikolaos S. Papageorgiou, Nikolaos Yannakakis

Appl. Math. Comput., 2002

2000

Nonlinear Elliptic Problems of Neumann-Type.

Shouchuan Hu, Nikolaos S. Papageorgiou

Period. Math. Hung., 2000

1996

Infinite-horizon continuous-time growth models.

Dimitrios Kravvaritis, Nikolaos S. Papageorgiou

Int. J. Syst. Sci., 1996