01279nam a2200301 i 450099100078499970753620020507173545.0971117s1989 sz ||| | eng (pbk.)b10756942-39ule_instLE01302286ExLDip.to Matematicaeng514.7AMS 58G17Arnold, Vladimir Igorevic22210Contact geometry and wave propagation :lectures given at the University of Oxford under the sponsorship of the International Mathematical Union /V. I. ArnoldGenève :L'Enseignement Mathématique, Inst. Math. Univ. Genève,198956 p. ;24 cm.Monographies de l'Enseignement mathématique ;34Série des conférences de l'Union Mathématique Internationale ;9Includes bibliographical references (p. 55-56)Propagation of singularities.b1075694223-02-1728-06-02991000784999707536LE013 58G ARN11 (1989)12013000091570le013-E0.00-l- 00000.i1085136728-06-02Contact geometry and wave propagation922964UNISALENTOle01301-01-97ma -engsz 01