2019/12/24 by Boscaggin, Alberto, Feltrin, Guglielmo · 1 citation
#34B08 #34B18 #35B09 #47H11 #Analysis of PDEs (math.AP) #Classical Analysis and ODEs (math.CA) #FOS: Mathematics
paper · doi:10.48550/arxiv.1912.12205
We prove the existence of a pair of positive radial solutions for the Neumann boundary value problem \begincases div \Biggl( \dfrac∇ u√1- | ∇ u |2\Biggr) + λa(|x|)up = 0, amp; in B,
∂νu=0, amp; on ∂ B, \endcases where B is a ball centered at the origin, a(|x|) is a radial sign-changing function with ∫B a(|x|) dx < 0, p>1 and λ> 0 is a large parameter. The proof is based on the Leray-Schauder degree theory and extends to a larger class of nonlinearities.