B. Stratmann

activity

20052025

most citedA multifractal analysis for Stern-Brocot intervals, continued fractions and Diophantine growth rates

70 citations · 210 across the 21 of their papers we have counts for

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Showing 2020 · math.SGShow all

3 papers · 2 filters

math.SG2020

Removing parametrized rays symplectically

Bernd Stratmann

Extracting isolated rays from a symplectic manifold result in a manifold symplectomorphic to the initial one. The same holds for higher dimensional parametrized rays under an addit…

math.SG2020

Nowhere vanishing primitive of a symplectic form

Bernd Stratmann

Let $M$ be a manifold with an exact symplectic form $ω$ . Then there is a nowhere vanishing primitive $β$ for $ω$ , i.e. $ω = d β$ .

math.SG2020

Invariant Kähler potentials and symplectic reduction

Peter Heinzner, Bernd Stratmann

For a proper Hamiltonian action of a Lie group $G$ on a Kähler manifold $(X, ω)$ with momentum map $μ$ we show that the symplectic reduction $μ^{- 1} (0) / G$ is a normal complex space.…