Journal of the
Korean Mathematical Society
JKMS

ISSN(Print) 0304-9914 ISSN(Online) 2234-3008

Article

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J. Korean Math. Soc. 2019; 56(5): 1309-1331

Online first article July 17, 2019      Printed September 1, 2019

https://doi.org/10.4134/JKMS.j180658

Copyright © The Korean Mathematical Society.

Multiplicity results of positive solutions for singular generalized Laplacian systems

Yong-Hoon Lee, Xianghui Xu

Pusan National University; Ludong University

Abstract

We study the homogeneous Dirichlet boundary value problem of generalized Laplacian systems with a singular weight which may not be in $L^{1}$. Using the well-known fixed point theorem on cones, we obtain the multiplicity results of positive solutions under two different asymptotic behaviors of the nonlinearities at $0$ and $\infty$. Furthermore, a global result of positive solutions for one special case with respect to a parameter is also obtained.

Keywords: generalized Laplacian system, singular weight, multiplicity, positive solution

MSC numbers: 34B16, 34B18

Supported by: The first author was supported by the National Research Foundation of Korea, Grant funded by the Korea Government (MEST)(NRF 2016R1D1A1B04931741)