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• Double resonance in Sturm-Liouville planar boundary value problems

  Andrea Sfecci

  655 - 679

  2020-05-30
• Multiple solutions for an impulsive boundary value problems on the halfline via Morse theory

  Karima Ait-Mahiout, Smail Djebali, Toufik Moussaoui

  219 - 240

  2016-03-01
• Linearized stability for degenerate and singular semilinear and quasilinear parabolic problems: the linearized singular equation

  Jesús Ildefonso Diaz, Jesús Hernández

  937 - 966

  2019-11-14
• Some two-point problems for second order integro-differential equations with argument deviations

  Sulkhan Mukhigulashvili, Veronika Novotná

  459 - 476

  2019-10-20
• Topological methods for boundary value problems involving discrete vector $\phi$-Laplacians

  Cristian Bereanu, Dana Gheorghe

  265 - 276

  2011-04-23
• Hilbert and Poincaré problems for semi-linear equations in rectifiable domains

  Vladimir Ryazanov

  1 - 24

  2023-07-17
• Global bifurcation in nonlinear Dirac problems with spectral parameter in the boundary condition

  Ziyatkhan S. Aliyev, Parvana R. Manafova

  817 - 831

  2019-12-01
• Infinitely many positive solutions of fractional boundary value problems

  Bin Ge, Vicenţiu D. Rădulescu, C. J. Zhang

  647 - 664

  2017-02-08
• Almost periodic solutions of evolution equations

  Sergey Ponomarev, Jean-Franҫois Couchouron, Mikhail I. Kamenskiĭ

  65 - 87

  2017-07-07
• Blow-up solutions for a $p$-Laplacian elliptic equation of logistic type with singular nonlinearity

  Claudianor O. Alves, Carlos Alberto Santos, Jiazheng Zhou

  747 - 777

  2019-05-23
• Semilinear inclusions with nonlocal conditions without compactness in non-reflexive spaces

  Irene Benedetti, Martin Väth

  613 - 636

  2016-10-05
• A three solution theorem for a singular differential equation with nonlinear boundary conditions

  Rajendran Dhanya, Ratnasingham Shivaji, Byungjae Son

  445 - 457

  2019-07-27
• Matrix Lyapunov inequalities for ordinary and elliptic partial differential equations

  Salvador Villegas, Antonio Cañada

  309 - 326

  2015-06-01
• Lower and upper solutions to semilinear boundary value problems: an abstract approach

  Alessandro Fonda, Rodica Toader

  59 - 93

  2011-04-23
• Existence of solutions in the sense of distributions of anisotropic nonlinear elliptic equations with variable exponent

  Mohamed Badr Benboubker, Houssam Chrayteh, Hassane Hjiaj, Chihab Yazough

  665 - 694

  2015-12-01
• A class of positive linear operators and applications to nonlinear boundary value problems

  Jeffrey R. L. Webb

  221 - 242

  2012-04-23
• Generalized Sturm-Liouville boundary conditions for first order differential systems in the plane

  Alessandro Fonda, Maurizio Garrione

  293 - 325

  2013-04-22
• On a class of intermediate local-nonlocal elliptic problems

  Claudianor O. Alves, Francisco Julio S. A. Corrêa, Michel Chipot

  497 - 509

  2016-12-16
• Positive solutions for singular impulsive Dirichlet boundary value problems

  Liang Bai, Juan J. Nieto

  561 - 584

  2018-11-03
• Topological optimization via cost penalization

  Cornel Marius Murea, Dan Tiba

  1023 - 1050

  2019-11-09
• Existence results for boundary value problems for fractional hybrid differential inclusions

  Bapurao C. Dhage, Sotiris K. Ntouyas

  229 - 238

  2016-04-12
• Connected component of positive solutions for singular superlinear semi-positone problems

  Ruyun Ma

  51 - 62

  2020-03-04
• 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
• Periodic solutions to nonlinear equations with oblique boundary conditions

  Walter Allergretto, Duccio Papini

  225 - 243

  2012-04-23
• 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
• Bifurcation and multiplicity results for classes of $p,q$-Laplacian systems

  Ratnasingham Shivaji, Byungjae Son

  103 - 114

  2016-04-29
• Conley index continuation for a singularly perturbed periodic boundary value problem

  Maria C. Carbinatto, Krzysztof P. Rybakowski

  29 - 58

  2019-06-20
• Eigenvalue criteria for existence of positive solutions of second-order, multi-point, $p$-Laplacian boundary value problems

  Bryan P. Rynne

  311 - 326

  2010-04-23
• On exact multiplicity for a second order equation with radiation boundary conditions

  Pablo Amster, Mariel P. Kuna

  233 - 246

  2019-07-13
• Convergence estimates for abstract second order differential equations with two small parameters and monotone nonlinearities

  Andrei Perjan, Galina Rusu

  1093 - 1110

  2019-11-14
• Compact components of positive solutions for superlinear indefinite elliptic problems of mixed type

  Santiago Cano-Casanova

  45 - 72

  2004-03-01
• Moser-Harnack inequality, Krasnosel'skii type fixed point theorems in cones and elliptic problems

  Radu Precup

  301 - 313

  2012-04-23
• On an asymptotically linear singular boundary value problems

  Dinh Dang Hai

  83 - 92

  2012-04-23
• 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
• Solutions to some singular nonlinear boundary value problems

  Beata Medak, Alexey A. Tret'yakov, Henryk Żołądek

  255 - 265

  2013-04-22
• Equivalence between uniform $L^{2^\star}(\Omega)$ a-priori bounds and uniform $L^{\infty}(\Omega)$ a-priori bounds for subcritical elliptic equations

  Alfonso Castro, Nsoki Mavinga, Rosa Pardo

  43 - 56

  2019-01-12
• On extreme values of Nehari manifold method via nonlinear Rayleigh's quotient

  Yavdat Il'yasov

  683 - 714

  2017-03-04
• Nodal solutions for a class of degenerate one dimensional BVP's

  Julian López-Gómez, Paul H. Rabinowitz

  359 - 376

  2016-12-25
• Strongly resonant Robin problems with idefinite and unbounded potential

  Nikolaos S. Papageorgiou, George Smyrlis

  511 - 527

  2016-12-16
• On the Faedo-Galerkin method for a free boundary problem for incompressible viscous magnetohydrodynamics

  Piotr Kacprzyk, Wojciech M. Zajączkowski

  69 - 98

  2018-07-21
• About positive $W_{loc}^{1,\Phi}(\Omega)$-solutions to quasilinear elliptic problems with singular semilinear term

  Carlos Alberto Santos, José Valdo Gonçalves, Marcos Leandro Carvalho

  491 - 517

  2019-03-31
• Corrigendum to "The splitting lemmas for nonsmooth functionals on Hilbert spaces II. The case at infinity" (Topol. Methods Nonlinear Anal. 44 (2014), 277-335)

  Guangcun Lu

  339 - 343

  2016-07-06
• Resonant Robin problems with indefinite and unbounded potential

  Nikolaos S. Papageorgiou, George Smyrlis

  51 - 74

  2016-10-05
• Positive solutions for second order four-point boundary value problems at resonance

  Chunfang Shen, Liu Yang, Yan Liang

  1 - 15

  2011-04-23
• Existence of solutions for anti-periodic boundary value problems involving fractional differential equations via Leray-Schauder degree theory

  Bashir Ahmad, Juan J. Nieto

  295 - 304

  2010-04-23
• A topological approach to superlinear indefinite boundary value problems

  Duccio Papini, Fabio Zanolin

  203 - 233

  2000-06-01
• Index bundle, Leray-Schauder reduction and bifurcation of solutions of nonlinear elliptic boundary value problems

  Jacobo Pejsachowicz

  243 - 267

  2001-12-01
• Singular boundary value problems via the Conley index

  Tomáš Gedeon, Konstantin Mischaikow

  263 - 283

  2006-12-01
• Some existence results for nonresonant difference equations on infinite intervals subject to nonlocal boundary conditions

  Daniel Maroncelli, Jesús Rodríguez

  123 - 143

  2025-02-14
• Symmetry-breaking bifurcations for free boundary problems modeling tumor growth

  Hongjing Pan, Ruixiang Xing

  387 - 412

  2022-08-31
• Spectral properties and nodal solutions for second-order, $m$-point, $p$-Laplacian boundary value problems

  Niall Dodds, Bryan P. Rynne

  21 - 40

  2008-09-01
• Fourth-order elliptic problems involving concave-superlinear nonlinearities

  Thiago R. Cavalcante, Edcarlos D. Silva

  581 - 600

  2022-12-11
• A new Morse theory and strong resonance problems

  Shujie Li

  81 - 100

  2003-03-01
• On the topological dimension of the solution set of a class of nonlocal elliptic problems

  Francesca Faraci, Antonio Iannizzotto

  1 - 8

  2013-09-01
• On second-order boundary value problems in Banach spaces: a bound sets approach

  Jan Andres, Luisa Malaguti, Martina Pavlačková

  303 - 341

  2011-04-23
• Homotopy perturbation method for two point boundary value problems

  Shun-Dong Zhu

  369 - 372

  2008-06-01
• Bifurcation of solutions of $U(1)$-equivariant semilinear boundary value problems

  Jacobo Pejsachowicz

  491 - 500

  2023-02-26
• On positive solutions of indefinite inhomogeneous Neumann boundary value problems

  Yavdat Il'yasov, Thomas Runst

  41 - 67

  2004-09-01
• An existence result for a class of quasilinear elliptic boundary value problems with jumping nonlinearities

  Kanishka Perera

  135 - 144

  2002-09-01
• A Fredholm alternative for elliptic equations with interior and boundary nonlinear reactions

  Daniel Maroncelli, Mauricio A. Rivas

  135 - 157

  2023-09-23
• On the solvability of nonlinear impulsive boundary value problems

  Daniel Maroncelli, Jesús Rodríguez

  381 - 398

  2016-04-12
• Upper and lower solutions for problems with singular sign changing nonlinearities and with nonlinear boundary data

  Donal O'Regan

  375 - 390

  2002-06-01
• Coercive functionals and their relationship to multiplicity of solution to nonlocal boundary value problems

  Christopher S. Goodrich

  409 - 426

  2019-10-20
• Small perturbations of Robin problems driven by the $p$-Laplacian plus a positive potential

  Anouar Bahrouni, Vicenţiu D. Rădulescu, Patrick Winkert

  663 - 673

  2021-05-25
• Topological essentiality and nonlinear boundary value control problems$^*$

  Lech Górniewicz, Paolo Nistri

  53 - 72

  1999-03-01
• Some remarks on the critical point theory

  Chong Li

  223 - 234

  2007-12-01
• On critical pseudo-relativistic Hartree equation with potential well

  Yu Zheng, Minbo Yang, Zifei Shen

  185 - 226

  2020-03-04
• Positive solutions of one-dimensional $p$-Laplacian equations and applications to population models of one species

  Kunquan Lan, Xiaojing Yang, Guangchong Yang

  431 - 445

  2015-09-01
• Topological characteristic of fully nonlinear parabolic boundary value problems

  Igor V. Skrypnik, Igor B. Romanenko

  1 - 31

  2004-03-01
• Nontrivial solutions of fourth-order singular boundary value problems with sign-changing nonlinear terms

  Kemei Zhang

  53 - 70

  2012-04-23
• On convergence and compactness in parabolic problems with globally large diffusion and nonlinear boundary conditions

  Maria C. Carbinatto, Krzysztof P. Rybakowski

  1 - 28

  2012-04-23
• Localized singularities and the Conley index

  Maria C. Carbinatto, Krzysztof P. Rybakowski

  1 - 35

  2011-04-23
• On solutions of two-point boundary value problems inside isolating segments

  Roman Srzednicki

  73 - 89

  1999-03-01
• Application of homotopy perturbation method to the Bratu-type equations

  Xinlong Feng, Yinnian He, Jixiang Meng

  243 - 252

  2008-06-01
• Bifurcation of solutions of elliptic problems: local and global behaviour

  José L. Gámez, Juan F. Riuz

  203 - 212

  2004-06-01
• Sandwich pairs in $p$-Laplacian problems

  Kanishka Perera, Martin Schechter

  29 - 34

  2007-03-01
• Separating solutions of nonlinear problems using nonlinear generalized Rayleigh quotients

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

  453 - 480

  2021-12-02
• Nonlinear Riemann-Hilbert problems for doubly connected domains and closed boundary data

  M. A. Efendiev, W. L. Wendland

  111 - 124

  2001-03-01
• Variational and boundary value problems with perturbations

  Stanisław Walczak

  103 - 118

  2001-09-01
• Some general concepts of sub- and supersolutions for nonlinear elliptic problems

  Vy Khoi Le, Klaus Schmitt

  87 - 103

  2006-09-01
• Positive solutions of Neumann boundary value problems and applications to logistic type population models

  Ziyi Cai, Kunquan Lan

  35 - 52

  2022-03-06
• Existence theory for single and multiple solutions to singular boundary value problems for second order impulsive differential equations

  Li Zu, Xiaoning Lin, Daqing Jiang

  171 - 191

  2007-09-01
• On solvability of some boundary value problems for differential equations with "maxima"

  Eugene Stepanov

  315 - 326

  1996-12-01
• Double positive solutions for second order nonlocal functional and ordinary boundary value problems

  Panagiotis Ch. Tsamatos

  117 - 131

  2006-09-01
• Boundary value problems for first order systems on the half-line

  Patric J. Rabier, Charles A. Stuart

  101 - 131

  2005-03-01
• A new approach to Boundary value problems on the half line using weakly-strongly sequentially continuous maps

  Ravi P. Agarwal, Donal O'Regan, Svatoslav Stanĕk

  399 - 405

  2006-06-01
• Multiplicity of solutions for asymptotically linear $n$-th order boundary value problems

  Francesca Dalbono

  67 - 85

  2007-09-01
• Existence of sign-changing solutions for a third-order boundary value problem with nonlocal conditions of integral type

  Sergey Smirnov

  377 - 384

  2023-09-23
• Existence of multiple positive solutions for a nonlocal boundary value problem

  George L. Karakostas, Panagiotis Ch. Tsamatos

  109 - 121

  2002-03-01
• $R_{\delta}$-set of solutions to a boundary value problem

  Valter Šeda

  93 - 101

  2000-09-01
• Global existence, local existence and blow-up of mild solutions for abstract time-space fractional diffusion equations

  Yongqiang Fu, Xiaoju Zhang

  415 - 440

  2022-09-13
• The splitting lemmas for nonsmooth functional on Hilbert spaces II. The case at infinity.

  Guangcun Lu

  277 - 335

  2016-04-12
• Multiplicity results for some quasilinear elliptic problems

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

  77 - 89

  2009-09-01
• A direct proof of existence of weak solutions to elliptic problems

  Iwona Chlebicka, Arttu Karppinen, Ying Li

  643 - 665

  2023-12-31
• Multiple periodic solutions of Hamiltonian systems in the plane

  Alessandro Fonda, Luca Ghirardelli

  27 - 38

  2010-04-23
• Bifurcation of Fredholm maps I. The index bundle and bifurcation

  Jacobo Pejsachowicz

  115 - 168

  2011-04-23
• Multiplicity results for superquadratic Dirichlet boundary value problems in $\mathbb R^2$

  Anna Capietto, Walter Dambrosio

  19 - 28

  2008-03-01
• Remarks on multiple solutions for asymptotically linear elliptic boundary value problems

  Kung Ching Chang, Shujie Li, Jiaquan Liu

  179 - 187

  1994-03-01
• Global structure of positive solutions for superlinear second order $m$-point boundary value problems

  Ruyun Ma, Yulian An

  279 - 290

  2009-12-01
• Nonconvex perturbations of second order maximal monotone differential inclusions

  Dalila Azzam-Laouir, Sabrina Lounis

  305 - 317

  2010-04-23