Unbounded periodic constant mean curvature graphs on Calibrable Cheeger Serrin domains

Abstract: We prove a general result characterizing a specific class of Serrin domains as supports of unbounded and periodic constant mean curvature graphs. We apply this result to prove the existence of a family of unbounded periodic constant mean curvature graphs, each supported by a Serrin domain and intersecting its boundary orthogonally, up to a translation. We also show that the underlying Serrin domains are calibrable and Cheeger in a suitable sens, and they solve the 1-Laplacian equation.