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The Farrell-Jones and the Baum-Connes Conjecture say that one can compute the algebraic K - and L -theory of the group ring and the topological K -theory of the reduced group C *-algebra of a group G in terms of these functors for the virtually cyclic subgroups or the finite subgroups of G . By...
A parabolic Harnack inequality for the equation is proved; in particular, this implies a sharp two-sided estimate for the associated heat kernel. Our approach relies on the unitary equivalence between the Schrödinger operator and the weighted Laplacian when .
Using functional analytical and graph theoretical methods, we extend the results of Kramar M. und Sikolya E.: Spectral properties and asymptotic periodicity of flows in networks. Math. Z. 249 (2005), 139–162 to more general transport processes in networks allowing space dependent velocities and...
A classical problem in algebraic deformation theory is whether an infinitesimal deformation can be extended to a formal deformation. The answer to this question is usually given in terms of Massey powers. If all Massey powers of the cohomology class determined by the infinitesimal deformation...
In this paper we use the technique of pulling back global Bessel models via the theta correspondence to prove two theorems.
We characterize H -spaces which are p -torsion Postnikov pieces of finite type by a cohomological property together with a necessary acyclicity condition. When the mod p cohomology of an H -space is finitely generated as an algebra over the Steenrod algebra we prove that its homotopy groups...
Two sets of conditions are presented for the compactness of a real plane algebraic curve, one sufficient and one necessary, in terms of the Newton polygon of the defining polynomial.
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