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• Multiplicity of solutions of some quasilinear equations in ${\mathbb{R}^{N}}$ with variable exponents and concave-convex nonlinearities

  Claudianor O. Alves, José L. P. Barreiroy, José Valdo Gonçalves

  529 - 559

  2016-06-01
• Existence and multiplicity of positive solutions for a Schrodinger-Poisson system with a perturbation

  Juntao Sun, Tsung-fang Wu

  967 - 998

  2015-12-01
• Periodic bifurcation problems for fully nonlinear neutral functional differential equations via an integral operator approach: the multidimensional degeneration case

  Jean-Francois Couchouron, Mikhail I. Kamenskii, Boris Mikhaylenko, Paolo Nistri

  631 - 664

  2015-12-01
• Multiplicity of positive solutions for Kirchhoff type problems in $\mathbb R^3$

  Tingxi Hu, Lu Lu

  231 - 252

  2017-08-19
• Multiplicity theorems for resonant and superlinear nonhomogeneous elliptic equations

  Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu

  283 - 320

  2016-07-06
• Multiplicity of solutions of asymptotically linear Dirichlet problems associated to second order equations in R^{2n+1}

  Alessandro Margheri, Carlota Rebelo

  1107 - 1118

  2015-12-01
• Bifurcation and multiplicity results for classes of $p,q$-Laplacian systems

  Ratnasingham Shivaji, Byungjae Son

  103 - 114

  2016-04-29
• Nonlinear noncoercive Neumann problems with a reaction concave near the origin

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

  289 - 317

  2016-03-01
• Solutions with sign information for nonlinear nonhomogeneous elliptic equations

  Nikolaos S. Papageorgiou, Vicentiu D. Radulescu

  575 - 600

  2015-06-01
• Positive solutions of a diffusive predator-prey mutualist model with cross-diffusion

  Jun Zhou

  125 - 145

  2016-03-01
• Nielsen number, impulsive differential equations and problem of Jean Leray

  Jan Andres

  383 - 400

  2020-08-27
• Existence of multiple solutions for a quasilinear elliptic problem

  Jorge Cossio, Sigifredo Herrón, Carlos Vélez

  531 - 551

  2017-10-01
• Multiplicity and concentration for Kirchhoff type equations around topologically critical points in potential

  Yu Chen, Yanheng Ding

  183 - 223

  2019-02-24
• Multiple positive solutions for a fractional elliptic systems involving sign-changing weight

  Haining Fan

  757 - 781

  2017-05-21
• On exact multiplicity for a second order equation with radiation boundary conditions

  Pablo Amster, Mariel P. Kuna

  233 - 246

  2019-07-13
• Multiplicity of positive solutions for fractional Laplacian equations involving critical nonlinearity

  Jinguo Zhang, Xiaochun Liu, Hongying Jiao

  151 - 182

  2019-02-16
• Multiplicity and concentration results for a class of singularly perturbed critical quasilinear Schrödinger equation

  Yongpeng Chen, Zhongwei Tang

  135 - 171

  2020-08-27
• Multiplicity of solutions for $p$-Laplacian type elliptic problems with electromagnetic fields and critical nonlinearity

  Zhongyi Zhang

  115 - 129

  2016-04-29
• Solutions for quasilinear elliptic systems with vanishing potentials

  Billel Gheraibia

  153 - 175

  2019-07-13
• Topology of twists, extremising twist paths and multiple solutions to the nonlinear system in variation $\mathscr{L}[u] = \nabla \mathscr{P}$

  George Morrison, Ali Taheri

  833 - 862

  2019-11-09
• Nonhomogeneous Dirichlet problems without the Ambrosetti-Rabinowitz condition

  Gang Li, Vicenţiu D. Rădulescu, Dušan D. Repovš, Qihu Zhang

  55 - 77

  2017-10-28
• On existence of periodic solutions for Kepler type problems

  Pablo Amster, Julián Haddad

  465 - 476

  2016-08-17
• Existence and multiplicity results for a non-homogeneous fourth order equation

  Ali Maalaoui, Vittorio Martino

  273 - 300

  2012-04-23
• On a singular semilinear elliptic problem: multiple solutions via critical point theory

  George Smyrlis, Francesca Faraci

  459 - 491

  2018-05-23
• Subharmonic solutions and minimal periodic solutions of first-order variant subquadratic Hamiltonian systems

  Shanshan Tang, Xiaofei Zhang

  517 - 532

  2020-06-07
• Geodesics on ${\bf SO}(n)$ and a class of spherically symmetric maps as solutions to a nonlinear generalised harmonic map problem

  Stuart Day, Ali Taheri

  637 - 662

  2018-05-21
• Infinitely many periodic solutions of Duffing equations under integral condition

  Nannan Zheng, Zaihong Wang

  297 - 315

  2020-12-18
• Corrigendum and addendum to "Non-autonomous quasilinear elliptic equations and Ważewski's principle"

  Matteo Franca

  1 - 30

  2020-09-05
• Resonant Robin problems with indefinite and unbounded potential

  Nikolaos S. Papageorgiou, George Smyrlis

  51 - 74

  2016-10-05
• Multiple periodic solutions of Hamiltonian systems in the plane

  Alessandro Fonda, Luca Ghirardelli

  27 - 38

  2010-04-23
• On a multiplicity result of J. R. Ward for superlinear planar systems

  Cristian Bereanu

  289 - 298

  2006-06-01
• A Global multiplicity result for a very singular critical nonlocal equation

  Jacques Giacomoni, Tuhina Mukherjee, Konijeti Sreenadh

  354 - 370

  2019-07-21
• Positive solutions for a $2n$th-order boundary value problem involving all derivatives of odd orders

  Zhilin Yang, Donal O'Regan

  87 - 101

  2011-04-23
• A diffusive logistic equation with U-shaped density dependent dispersal on the boundary

  Jerome Goddard II, Quinn Morris, Catherine Payne, Ratnasingham Shivaji

  335 - 349

  2019-01-12
• Generalized limit theorem and bifurcation for problems with Pucci's operator

  Guowei Dai

  229 - 261

  2020-08-29
• Positive solutions for singular impulsive Dirichlet boundary value problems

  Liang Bai, Juan J. Nieto

  561 - 584

  2018-11-03
• Singular reaction diffusion equations where a parameter influences the reaction term and the boundary conditions

  Nalin Fonseka, Amila Muthunayake, Ratnasingham Shivaji, Byungjae Son

  221 - 242

  2021-02-08
• Multiplicity of solutions for polyharmonic Dirichlet problems with exponential nonlinearities and broken symmetry

  Edger Sterjo

  27 - 63

  2017-06-25
• Strongly resonant Robin problems with idefinite and unbounded potential

  Nikolaos S. Papageorgiou, George Smyrlis

  511 - 527

  2016-12-16
• Quasilinear elliptic problems on non-reflexive Orlicz-Sobolev spaces

  Edcarlos D. Silva, Marcos Leandro Carvalho, K. Silva, José Valdo Gonçalves

  587 - 612

  2019-10-06
• Schrödinger-Poisson systems with radial potentials and discontinuous quasilinear nonlinearity

  Anmin Mao, Hejie Chang

  79 - 89

  2017-10-09
• Existence and multiplicity of positive solutions for boundary value problems of 2d order ODE

  Patrick Habets, Marcellino Gaudenzi

  131 - 150

  1999-09-01
• Coercive functionals and their relationship to multiplicity of solution to nonlocal boundary value problems

  Christopher S. Goodrich

  409 - 426

  2019-10-20
• Infinitely many solutions for systems of multi-point boundary value problems using variational methods

  John R. Graef, Shapour Heidarkhani, Lingju Kong

  105 - 118

  2013-04-22
• Multiple positive symmetric solutions of a singularly perturbed elliptic equation

  Mónica Clapp, Gustavo Izquierdo

  17 - 39

  2001-09-01
• Multiplicity of solutions for some elliptic equations involving critical and supercritical Sobolev exponents

  Shujie Li, Zhaoli Liu

  235 - 261

  2006-12-01
• Resonant Neumann equations with indefinite linear part

  Roberto Livrea, Nikolaos S. Papageorgiou, Giuseppina Barletta

  469 - 491

  2015-06-01
• Multiplicity of nonradial solutions for a class of quasilinear equations on annulus with exponential critical growth

  Claudianor O. Alves, Luciana R. de Freitas

  243 - 262

  2012-04-23
• Note on periodic solutions of relativistic pendulum type systems

  Kazuya Hata, Jiaquan Liu, Zhi-Qiang Wang

  417 - 425

  2013-04-22
• Quasilinear nonhomogeneous Schrödinger equation with critical exponential growth in R^n

  Tarciana Silva, Manassés de Souza, João Marcos do Ó

  615 - 639

  2015-06-01
• Existence and multiplicity of nontrivial solutions for semilinear elliptic Dirichlet problems across resonance

  Xianojun Chang, Yong Li

  285 - 310

  2010-04-23
• Multiplicity results for nonlocal fractional $p$-Kirchhoff equations via Morse theory

  Binlin Zhang, Giovanni Molica Bisci, Mingqi Xiang

  445 - 461

  2016-11-23
• Existence and multiplicity results for wave equations with time-independent nonlinearity

  Juha Berkovits, Herbert Leinfelder, Vesa Mustonen

  273 - 295

  2003-12-01
• Multiple nonnegative solutions for elliptic boundary value problems involving the $p$-Laplacian

  Giovanni Anello

  355 - 366

  2005-12-01
• Moser-Harnack inequality, Krasnosel'skii type fixed point theorems in cones and elliptic problems

  Radu Precup

  301 - 313

  2012-04-23
• Positive solutions for a $2n$th-order $p$-Laplacian boundary value problem involving all even derivatives

  Jiafa Xu, Zhongli Wei, Youzheng Ding

  23 - 36

  2012-04-23
• Multiple solitary wave solutions of nonlinear Schrödinger systems

  Rushun Tian, Zhi-Qiang Wang

  203 - 223

  2011-04-23
• Effect of external potentials in a coupled system of multi-component incongruent diffusion

  Yanheng Ding, Tian Xu

  715 - 750

  2019-11-14
• Multiplicity results for fractional $p$-Laplacian problems with Hardy term and Hardy-Sobolev critical exponent in $\mathbb{R}^N$

  Hadi Mirzaee

  603 - 621

  2019-05-08
• Existence and multiplicity of solutions for resonant nonlinear Neumann problems

  Sergiu Aizicovici, Nikolaos S. Papageorgiou, Vasile Staicu

  235 - 252

  2010-04-23
• Multiplicity of multi-bump type nodal solutions for a class of elliptic problems in ${\Bbb R}^N$

  Claudianor O. Alves

  231 - 250

  2009-12-01
• Multiple solutions of compact $H$-surfaces in Euclidean space

  Yuxin Ge, Feng Zhou

  355 - 367

  2003-12-01
• Index theory for linear elliptic equation and multiple solutions for asymptotically linear elliptic equation with resonance

  Yuan Shan, Keqiang Li

  89 - 104

  2016-04-12
• Positive radial solutions of the Dirichlet problem for the Minkowski-curvature equation in a ball

  Isabel Coelho, Chiara Corsato, Sabrina Rivetti

  23 - 39

  2016-04-12
• Infinitely many solutions for operator equations involving duality mappings on Orlicz-Sobolev spaces

  George Dinca, Pavel Matei

  49 - 76

  2009-09-01
• Multiplicity of solutions for nonhomogeneuous nonlinear elliptic equations with critical exponents

  Norimichi Hirano

  269 - 281

  2001-12-01
• Separating solutions of nonlinear problems using nonlinear generalized Rayleigh quotients

  Marcos Leandro Carvalho, Yavdat Il'yasov, Carlos Alberto Santos

  453 - 480

  2021-12-02
• Multiplicity results for some quasilinear elliptic problems

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

  77 - 89

  2009-09-01
• Multiplicity of solutions for asymptotically linear $n$-th order boundary value problems

  Francesca Dalbono

  67 - 85

  2007-09-01
• Multiple solutions for asymptotically linear resonant elliptic problems

  Francisco Odair de Paiva

  227 - 247

  2003-06-01
• Existence and multiplicity results for semilinear equations with measure data

  Alberto Ferrero, Claudio Saccon

  285 - 318

  2006-12-01
• A multiplicity result for a semilinear Maxwell type equation

  Antonio Azzollini

  83 - 110

  2008-03-01
• Mountain pass solutions and an indefinite superlinear elliptic problem on $\mathbb R^{\mathbb N}$

  Yihong Du, Yuxia Guo

  69 - 92

  2003-09-01
• Global structure of positive solutions for superlinear second order $m$-point boundary value problems

  Ruyun Ma, Yulian An

  279 - 290

  2009-12-01
• Asymptotically critical points and multiple elastic bounce trajectories

  Antonio Marino, Claudio Saccon

  351 - 395

  2007-12-01
• Solutions to indefinite weakly coupled cooperative elliptic systems

  Mónica Clapp, Andrzej Szulkin

  1 - 16

  2021-09-12
• Generalized Sturm-Liouville boundary conditions for first order differential systems in the plane

  Alessandro Fonda, Maurizio Garrione

  293 - 325

  2013-04-22
• Multiplicity of nodal solutions for elliptic equations with supercritical exponent in contractible domains

  Donato Passaseo

  245 - 262

  1996-12-01
• Existence, multiplicity and concentration of positive solutions for a class of quasilinear problems

  Claudianor O. Alves, Yanheng Ding

  265 - 278

  2007-06-01
• Existence and multiplicity of solutions for superquadratic noncooperative variational elliptic systems

  Daniela Lupo

  27 - 46

  1998-09-01
• Existence and multiplicity results for semilinear ellipctic equations with measure data and jumping nonlinearities

  Alberto Ferrero, Claudio Saccon

  37 - 65

  2007-09-01
• The effect of the domain's configuration space on the number of nodal solutions of singularly perturbed elliptic equations

  Thomas Bartsch, Tobias Weth

  109 - 133

  2005-09-01
• Critical superlinear Ambrosetti-Prodi problems

  Djairo Guedes de Figueiredo, Yang Jianfu

  59 - 80

  1999-09-01
• Nontrivial solutions for some semilinear problems and applications to wave equations on balls and spheres

  A. K. Ben-Naoum, Juha Berkovits

  177 - 192

  1995-03-01
• Three solutions for a Neumann problem

  Biagio Ricceri

  275 - 281

  2002-12-01
• Multiplicity of positive solutions for semilnear elliptic problems with antipodal symmetry

  Norimichi Hirano

  155 - 166

  2005-03-01
• Multiplicity results for superquadratic Dirichlet boundary value problems in $\mathbb R^2$

  Anna Capietto, Walter Dambrosio

  19 - 28

  2008-03-01
• Multiple positive solutions for some nonlinear elliptic systems

  Kazunaga Tanaka

  15 - 45

  1997-09-01
• Nabla theorems and multiple solutions for some noncooperative elliptic systems

  Antonio Marino, Claudio Saccon

  213 - 237

  2001-06-01
• Existence of positive solutions for a second order periodic boundary value problem with impulsive effects

  Jiafa Xu, Zhongli Wei, Youzheng Ding

  11 - 22

  2016-04-12
• The effect of the domain shape on the existence of positive solutions of the equation $\Delta u + u^{2^*-1} = 0$

  Donato Passaseo

  27 - 54

  1994-03-01