In this paper we prove the multiplicity of solutions for a class of quasilinear problems in involving variable exponents. The main tool used in the proof are the variational methods, Ekeland’s variational principle and some properties related to Nehari manifold.
S.Adachi and K.Tanaka, Four positive solutions for the semilinear elliptic equation: in , Calc. Var. Partial Differential Equations11 (2000), 63–95.
2.
C.O.Alves, Existence and multiplicity of solution for a class of quasilinear equations, Adv. Nonlinear Stud.5 (2005), 73–87.
3.
C.O.Alves, Existence of solution for a degenerate -Laplacian equation in , J. Math. Anal. Appl.345(2) (2008), 731–742.
4.
C.O.Alves and M.C.Ferreira, Nonlinear perturbations of a -Laplacian equation with critical growth in , Math. Nachr.287 (2014), 849–868.
5.
C.O.Alves and M.C.Ferreira, Existence of solutions for a class of -Laplacian equations involving a concave–convex nonlinearity with critical growth in , Topol. Methods Nonlinear Anal.45 (2015), 399–422.
6.
C.O.Alves and M.A.S.Souto, Existence of solutions for a class of problems in involving -Laplacian, Prog. Nonlinear Differ. Eq. Appl.66 (2005), 17–32.
7.
S.Antontsev and S.Shmarev, Elliptic equations with anisotropic nonlinearity and nonstandard conditions, in: Handbook of Differential Equations, M.Chipot and P.Quittner, eds, Stationary Partial Differential Equations, Vol. 3, Elsevier B.V., North-Holland, 2006, pp. 1–100.
8.
S.N.Antontsev and J.F.Rodrigues, On stationary thermo-rheological viscous flows, Ann. Univ. Ferrara Sez. Sci. Mat.52 (2006), 19–36.
9.
D.M.Cao and E.S.Noussair, Multiplicity of positive and nodal solutions for nonlinear elliptic problem in , Ann. Inst. H. Poincaré13(5) (1996), 567–588.
10.
D.M.Cao and H.S.Zhou, Multiple positive solutions of nonhomogeneous semilinear elliptic equations in , Proc. Roy. Soc. Edinburgh Sect. A126 (1996), 443–463.
11.
J.Chabrowski and Y.Fu, Existence of solutions for -Laplacian problems on a bounded domain, J. Math. Anal. Appl.306 (2005), 604–618.
12.
Y.Chen, S.Levine and M.Rao, Variable exponent, linear growth functionals in image restoration, SIAM J. Appl. Math.66(4) (2006), 1383–1406.
13.
L.Diening, P.Harjulehto, P.Hästö and M.Ruzicka, Lebesgue an Sobolev Spaces with Variable Exponents, Lecture Notes in Mathematics, Vol. 2017, Springer, Heidelberg, 2011.
14.
L.Diening, P.Hästö and A.Nekvinda, Open problems in variable exponent Lebesgue and Sobolev spaces, in: FSDONA04 Proceedings, Milovy, Czech Republic, P.Drábek and J.Rákosník, eds, 2004, pp. 38–58.
15.
X.Fan, -Laplacian equations in with periodic data and nonperiodic perturbations, J. Math. Anal. Appl.341 (2008), 103–119.
16.
X.Fan and X.Y.Han, Existence and multiplicity of solutions for -Laplacian equations in , Nonlinear Anal.59 (2004), 173–188.
17.
X.Fan, S.Shen and D.Zhao, Sobolev imbedding theorems for spaces , J. Math. Anal. Appl.262 (2001), 749–760.
18.
X.Fan and D.Zhao, On the spaces and , J. Math. Anal. Appl.263 (2001), 424–446.
19.
X.Fan, Y.Zhao and D.Zhao, Compact imbedding theorems with symmetry of Strauss–Lions type for the space , J. Math. Anal. Appl.255 (2001), 333–348.
20.
N.Hirano, Existence of entire positive solutions for nonhomogeneous elliptic equations, Nonlinear Anal.29 (1997), 889–901.
21.
N.Hirano and N.Shioji, A multiplicity result including sign-changing solutions for a nonlinear problem in , Adv. Nonlinear Stud.7 (2007), 513–532.
22.
T.S.Hsu, H.L.Lin and C.C.Hu, Multiple positive solutions of quasilinear elliptic equations in , J. Math. Anal. Appl.388 (2012), 500–512.
23.
K.Hu and C.L.Tang, Existence and multiplicity of positive solutions of semilinear elliptic equations in unbounded domains, J. Differential Equations251 (2011), 609–629.
24.
L.Jeanjean, Two positive solutions for a class of nonhomogeneous elliptic equations, Differential Integral Equations10 (1997), 609–624.
25.
O.Kovăčik and J.Răkosnik, On spaces and , Czechoslovak Math. J.41(116)(4) (1991), 592–618.
26.
A.Kristály, V.Rădulescu and C.Varga, Variational Principles in Mathematical Physics, Geometry, and Economics: Qualitative Analysis of Nonlinear Equations and Unilateral Problems, Encyclopedia of Mathematics and Its Applications, Vol. 136, Cambridge Univ. Press, Cambridge, 2010.
27.
H.L.Lin, Multiple positive solutions for semilinear elliptic systems, J. Math. Anal. Appl.391 (2012), 107–118.
28.
M.Mihailescu and V.Radulescu, A multiplicity result for a nonlinear degenerate problem arising in the theory of electrorheological fluids, Proc. R. Soc. A462 (2006), 2625–2641.
29.
M.Růžička, Electrorheological Fluids: Modeling and Mathematical Theory, Lecture Notes in Mathematics, Vol. 1748, Springer, Berlin, 2000.
30.
S.Samko, On a progress in the theory of Lebesgue spaces with variable exponent: Maximal and singular operators, Integral Transforms Spec. Funct.16 (2005), 461–482.
31.
G.Tarantello, On nonhomogeneous elliptic involving critical Sobolev exponent, Ann. Inst. H. Poincaré Anal. Non Linéaire9 (1992), 281–304.