TY - INPR A1 - Gosson, Maurice A. de T1 - On the Weyl representation of metaplectic operators N2 - We study the Weyl representation of metaplectic operators associated to a symplectic matrix having no non-trivial fixed point, and justify a formula suggested in earlier work of Mehlig and Wilkinson. We give precise calculations of the associated Maslov-type indices; these indices intervene in a crucial way in Gutzwiller’s formula of semiclassical mechanics, and are simply related to an index defined by Conley and Zehnder. T3 - Preprint - (2005) 10 KW - Weyl symbol KW - metaplectic operators KW - Maslov and Conley–Zehnder index KW - Gutzwiller formula Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-29865 ER -