Quasilinear Elliptic Equations on Half- and Quarter-spaces

2013 ◽  
Vol 13 (1) ◽  
Author(s):  
E.N. Dancer ◽  
Yihong Du ◽  
Messoud Efendiev

AbstractWe consider quasilinear elliptic problems of the form Δwhere V is a solution of the one-dimensional problemΔwith z a positive zero of f . Our results extend most of those in the recent paper of Efendiev and Hamel [6] for the special case p = 2 to the general case p > 1. Moreover, by making use of a sharper Liouville type theorem, some of the results in [6] are improved. To overcome the difficulty of the lack of a strong comparison principle for p-Laplacian problems, we employ a weak sweeping principle.

Author(s):  
Ann Derlet ◽  
François Genoud

We prove the existence of one positive, one negative and one sign-changing solution of a p-Laplacian equation on ℝN with a p-superlinear subcritical term. Sign-changing solutions of quasilinear elliptic equations set on the whole of ℝN have scarcely been investigated in the literature. Our assumptions here are similar to those previously used by some authors in bounded domains, and our proof uses fairly elementary critical point theory, based on constraint minimization on the nodal Nehari set. The lack of compactness due to the unbounded domain is overcome by working in a suitable weighted Sobolev space.


2008 ◽  
Vol 10 (05) ◽  
pp. 721-743 ◽  
Author(s):  
JIA-QUAN LIU ◽  
ZHI-QIANG WANG

This paper is concerned with bifurcation solutions of quasilinear elliptic problems. Our results generalize some earlier work, in particular, a similar type of result found in [3] where an additional structural condition is required to be imposed and the result in [11] where bifurcations in terms of the radius of the solutions were considered.


1998 ◽  
Vol 3 (1-2) ◽  
pp. 65-84 ◽  
Author(s):  
Filippo Gazzola

We consider a certain class of quasilinear elliptic equations with a term in the critical growth range. We prove the existence of positive solutions in bounded and unbounded domains. The proofs involve several generalizations of standard variational arguments.


2009 ◽  
Vol 11 (05) ◽  
pp. 783-798 ◽  
Author(s):  
P. C. CARRIÃO ◽  
D. G. DE FIGUEIREDO ◽  
O. H. MIYAGAKI

In this work, we prove results on existence and multiplicity of non-radial solutions for a class of singular quasilinear elliptic problems of the form [Formula: see text] where B = {x ∈ ℝN: |x| < 1} (N ≥ 3) is a unit open ball centered at the origin, -∞ < a < (N - p)/p, β > 0 and [Formula: see text].


2018 ◽  
Vol 148 (5) ◽  
pp. 1075-1095 ◽  
Author(s):  
Susana Merchán ◽  
Luigi Montoro ◽  
Berardino Sciunzi

We consider weak solutions towith p > 1, q ≥ max{p − 1, 1}. We exploit the Moser iteration technique to prove a Harnack comparison inequality for C1 weak solutions. As a consequence we deduce a strong comparison principle.


2011 ◽  
Vol 2011 ◽  
pp. 1-23
Author(s):  
Farman I. Mamedov ◽  
Aslan D. Quliyev ◽  
Mirfaig M. Mirheydarli

Carlson's type theorem on removable sets forα-Holder continuous solutions is investigated for the quasilinear elliptic equationsdiv A(x,u,∇u)=0,having degenerationωin the Muckenhoupt class. In partial, whenαis sufficiently small and the operator is weightedp-Laplacian, we show that the compact setEis removable if and only if the Hausdorff measureΛω−p+(p−1)α(E)=0.


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