We consider a nonlinear Dirichlet problem driven by the sum of ap-Laplace and a Laplacian
(a (p, 2)-equation). The reaction exhibits the competing effects of a parametric concave term …

Constant sign and nodal solutions for parametric (p, 2)-equations Skip to content Should you
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We consider parametric Dirichlet problems driven by the sum of a Laplacian and a
nonhomogeneous differential operator ((a, 2)-type equation) and with a reaction term which …

In this chapter we use the results obtained thus far (including those of Volume I), to study
certain stationary (elliptic) problems. In Sect. 5.1, we prove maximum and antimaximum …

We study a parametric nonlinear Dirichlet problem driven by a nonhomogeneous differential
operator and with a reaction which has z-dependent zeros of constant sign. For all big …

This volume continues our presentation of certain research topics in modern analysis. In
Volume I, we presented the basic background material necessary to understand the …

Constant sign and nodal solutions for parametric (p, )−equations Page 1 Open Access. © 2019
NS Papageorgiou and A. Scapellato, published by De Gruyter. This work is licensed under the …

We study a semilinear Robin problem driven by the Laplacian with a parametric superlinear
reaction. Using variational tools from the critical point theory with truncation and comparison …