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math.AP2026
On principal eigenpairs for the (p,q)-Laplacian in exterior domain
Maya Chhetri, Pavel Drabek, Ratnasingham Shivaji
We consider an eigenvalue problem of the form \begin{equation*} \left\{\begin{array}{rclll} -Δ_{p} u -Δ_{q} u&=& λK(x)|u|^{p-2}u & \mbox{ in } Ω^e u&=&0\qquad \quad &\mbox{ on } \p…
math.AP2021
Bifurcation and Multiplicity Results for Elliptic Problems with Subcritical Nonlinearity on the Boundary
Shalmali Bandyopadhyay, Maya Chhetri, Briceyda B. Delgado +2
We consider an elliptic problem with nonlinear boundary condition involving nonlinearity with superlinear and subcritical growth at infinity and a bifurcation parameter as a factor…