document.write("« Curvature Bounds, Obata Theorem, and Boundary Estimates for Dirichlet and Neumann Eignproblems. (arXiv:1803.04233v1 [math.DG])");document.write(" | ");document.write("DP-3-coloring of some planar graphs. (arXiv:1802.09312v2 [math.CO] UPDATED) »");