145 citations · 1.3k across the 104 of their papers we have counts for
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Denjoy-Carleman differentiable perturbation of polynomials and unbounded operators
Andreas Kriegl, Peter W. Michor, Armin Rainer
Let for be a -mapping with values unbounded operators with compact resolvents and common domain of definition which are self-adjoint or normal. Here $…
The Convenient Setting for Quasianalytic Denjoy--Carleman Differentiable Mappings
Andreas Kriegl, Peter W. Michor, Armin Rainer
For quasianalytic Denjoy--Carleman differentiable function classes where the weight sequence is log-convex, stable under derivations, of moderate growth and also an…
Rolling of Coxeter polyhedra along mirrors
Dmitri V. Alekseevsky, Peter W. Michor, Yurii A. Neretin
The topic of the paper are developments of -dimensional Coxeter polyhedra. We show that the surface of such polyhedron admits a canonical cutting such that each piece can be cov…
A generalization of Puiseux's theorem and lifting curves over invariants
Mark Losik, Peter W. Michor, Armin Rainer
Let be a rational representation of a reductive linear algebraic group defined over on a finite dimensional complex vector space …