[1] Bonanno G, Candito P, Non-differential functionals and applications to elliptic problems with discontinuous nonlinearities. J Differential Equations, 2008, 244: 3031--3059
[2] Bonanno G, Riccobono G. Multiple results for Sturm-Liouville boundary value problems.Appl Math Comput, 2009, 210: 294--297
[3] Bonanno G, Marano S A. On the structure of the critical set of non-differential functionals with a weak compactness condition. Appl Anal, 2010, 89: 1--10
[4] Tian Y, Ge W. Second-order Sturm-Liouville boundary value problem involving the one-dimensional $p$-Laplacian.Rocky Mountain J Math, 2008, 38: 309--327
[5] Bonanno G, Chinn\`{i} A. Existence of three solutions for a perturbed two-point boundary value problem,Applied Mathematics Letter, 2010, 23: 807--811
[6] Bonanno G, D'Agu\`{i} G. Multiplicity results for a perturbed elliptic Neumann problem. Abstract and Applied Analysis, 2010, 2010: 1--10
[7] D'Agu\`{i} G. Existence results for a mixed boundary value problem with Sturm-Liouville equation. Adv Pure Appl Math, 2011: 237--248
[8] D'Agu\`{i} G. Multiplicity results for nonlinear mixed boundary value problem. Bound Value Probl, 2012, 12: 2012--134
[9] D'Agu\`{i} G. Infinitely many solutions for a double Sturm-Liouville problem. J Global Optimization, 2012, 54: 619--625
[10] Bonanno G, Chinn\`{i} A. Existence of three solutions for a perturbed two-point boundary value problem. Appl Math Lett,2010, 23: 807--811
[11] Bonanno G, Motreanu G, Winkert P. Variational-hemivariational inequalities with small perturbations ofnonhomogeneous Neumann boundary conditions. J Math Anal Appl, 2011, 381: 627--637
[12] D'Agu\`{i} G, Sciammetta A. Infinitely many solutions to elliptic problems with variable exponent and nonhomogeneous Neumann conditions. Nonlinear Anal, 2012, 75: 5612--5619
[13] Heidarkhani S, Tian Y. Multiplicity results for a class of gradient systems depending on two parameters. Nonlinear Anal, 2010, 73: 547--554
[14] Gao L M. Existence of multiple solutions for a second-order difference equation with a parameter.Appl Math Comput, 2010, 216: 1592--1598
[15] Ding L, Tang C L. Positive solutions for critical quasilinear elliptic equations with mixed Dirichlet-Neumann boundary conditions,Acta Mathematica Scientia, 2013, 33(2): 443--470 |