books.google.it - Symplectic geometry and the theory of Fourier integral operators are modern manifestations of themes that have occupied a central position in mathematical thought for the past three hundred years--the relations between the wave and the corpuscular theories of light. The purpose of this book is to develop...http://books.google.it/books/about/Geometric_asymptotics.html?hl=it&id=58PgdwJzirUC&utm_source=gb-gplus-shareGeometric asymptotics
