00507nam a2200181 a 450000500170000002000180001708200170003510000230005224500380007525000280011326000560014130000290019749000440022660000080027063000350027885600060031385600060031920251203114916.0  a9781470414979  a515.353bEVA  aEvans, Lawrenced_  aPartial differential equationsb_  a2nd Indian ed., reprint  aProvidence, RIbAmerican Mathematical Societyc2016  axvii, 662 p.c26 cm.bPB  aGraduate studies in mathematics, v. 19.  bc_  aPartial differential equations  f_  a_