On the solutions to weakly coupled system of ${\mathbf{k}}_{\mathbf{i}}$-Hessian equations

Jingwen Ji, Feida Jiang, Baohua Dong

In this paper, the existence and multiplicity of nontrivial radial convex solutions to general coupled system of $k_i$-Hessian equations in a unit ball are studied via a fixed-poin…