The Dirichlet problem for the minimal surface equation in $\rm Sol_3$, with possible infinite boundary data

Minh Hoang Nguyen

Published 2013-12-21, updated 2014-01-28Version 2

In this paper, we study the Dirichlet problem for the minimal surface equation in $\rm Sol_3$ with possible infinite boundary data, where $\rm Sol_3$ is the non-abelian solvable $3$-dimensional Lie group equipped with its usual left-invariant metric that makes it into a model space for one of the eight Thurston geometries. Our main result is a Jenkins-Serrin type theorem which establishes necessary and sufficient conditions for the existence and uniqueness of certain minimal Killing graphs with a non-unitary Killing vector field in $\rm Sol_3$.