Quantum Feynman-Kac perturbations     Quantum stochastic cocycle  Markovian cocycle  quantum stochastic flow  one-parameter semigroup       font style='font-size:12px;'> 2012/3/1

We develop fully noncommutative Feynman-Kac formulae by employing quantum stochastic processes. To this end we establish some theory for perturbing quantum stochastic flows on von Neumann algebras by ...

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Spectral action for scalar perturbations of Dirac operators      spectral geometry  noncommutative geometry       font style='font-size:12px;'> 2011/2/22

We investigate the leading terms of the spectral action for odd-dimensional Riemannian spin manifolds with the Dirac operator perturbed by a scalar function.

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