%0 Journal Article %A Yu Zhang %A Yanyan Zhang %T Riemann problem with delta initial data for the two-dimensional steady pressureless isentropic relativistic Euler equations %J Mathematical modelling of natural phenomena %D 2021 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/mmnp/2021011/ %R 10.1051/mmnp/2021011 %G en %F MMNP_2021_16_a50