00391nam a2200121 a 450000500170000002000150001708200170003210000310004924500570008026000450013730000280018249000590021020251203110905.0  a0821802569  a501.185bPAT  aChadam, John [et al...] Ed  aPattern formationbsymmetry methods and applications  aUSAbAmerican Mathematical Societyc1996  aviii, 358p.c22 cm.bHB  aFields institute for research in mathematical sciences