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math.QA2012
A Nuclear Weyl Algebra
Stefan Waldmann
A bilinear form on a possibly graded vector space defines a graded Poisson structure on its graded symmetric algebra together with a star product quantizing it. This gives a mo…
math.DG2012★ 18 cited
Geometric Wave Equations
Stefan Waldmann
In these lecture notes we discuss the solution theory of geometric wave equations as they arise in Lorentzian geometry: for a normally hyperbolic differential operator the existenc…