Star Products with Separation of Variables Admitting a Smooth Extension
نویسندگان
چکیده
منابع مشابه
Warped Products Admitting a Curvature Bound
Warped products provide perhaps the major source of examples and counterexamples in metric and Riemannian geometry. Sufficient conditions for a warped product B×f F to have a curvature bound in the sense of Alexandrov, either above or below, are found in [AB 04]. Given the importance of warped products, we want to know if all the known sufficient conditions are needed. Here we prove their neces...
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ژورنال
عنوان ژورنال: Letters in Mathematical Physics
سال: 2012
ISSN: 0377-9017,1573-0530
DOI: 10.1007/s11005-012-0561-x