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math.OA2001
C*-Structure and K-Theory of Boutet de Monvel's Algebra
S. T. Melo, R. Nest, E. Schrohe
We consider the norm closure of the algebra of all operators of order and class zero in Boutet de Monvel's calculus on a manifold with boundary . We first describe the i…
math.OA1998
Construction of Spectral Triples Starting from Fredholm Modules
E. Schrohe, M. Walze, J. -M. Warzecha
Let (A,H,F) be a p-summable Fredholm module where the algebra A= C Γis generated by a discrete group of unitaries in L(H) which is of polynomial growth r. Then we construct a spect…