document.write("« Concentration in the flux approximation limit of Riemann solutions to the extended Chaplygin gas equations with Coulomb-like friction. (arXiv:1803.04283v1 [math.AP])");document.write(" | ");document.write("Conformal Mapping via a Density Correspondence for the Double-Layer Potential. (arXiv:1602.04855v2 [math.NA] UPDATED) »");