00288nam a2200121Ia 4500020001800000082002000018100001900038245003700057260003600094300002600130500000500156700000500161  a9788184896237  a515.35bR241.PD  aRauch, Jeffrey  aPartial differential equationsb  aNew yorkbSpringer-Verlagc2010  ax, 263p. Bibl. Index.  a  a