Remarks on weak solutions to the Navier-Stokes equations for 2-D compressible isothermal fluids with spherically symmetric initial data Song JiangPing Zhang 76N1035M1035Q302-D compressible Navier-Stokes equationsisothermal fluidsspherically symmetric weak solutionsglobal existenceOrlicz spacesweak convergence Indiana University Mathematics Journal 2002 text pdf 10.1512/iumj.2002.51.2264 10.1512/iumj.2002.51.2264 en Indiana Univ. Math. J. 51 (2002) 345 - 356 state-of-the-art mathematics http://iumj.org/access/