6 citations · 28 across the 10 of their papers we have counts for
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math.SP2003
Functional calculus for non-commuting operators with real spectra via an iterated Cauchy formula
Mats Andersson, Johannes Sjoestrand
We define a smooth functional calculus for a non-commuting tuple of (unbounded) operators on a Banach space with real spectra and resolvents with temperate growth, by means o…
math.SP2003★ 5 cited
Perturbations of selfadjoint operators with periodic classical flow
Johannes Sjoestrand
We consider non-selfadjoint perturbations of a self-adjoint -pseudodifferential operator in dimension 2. In the present work we treat the case when the classical flow of the unp…