00378nam a2200121Ia 4500008004100000082001900041100001800060245005600078260004200134300001600176490003600192500002800228251030b        |||||||| |||| 00| 0 eng d  a515.7bN721.TN  aNirenberg, L.  aTopics in nonlinear functional analysis, 1973-74b/  aNew York:bNew York University,c1974  aviii, 259p.  aCourant institute lecture notes  a"Notes by R. A. Artino"