226 citations
- Mohamed I UniversityMA8 papers
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Showing math.DGShow all
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math.DG2006
Orbit projections as fibrations
Armin Rainer
The orbit projection of a proper -manifold is a fibration if and only if all points in are regular. Under additional assumptions we show that is a qua…
math.DG1992★ 1 cited
Commutators of flows and fields
Markus Mauhart, Peter W. Michor
The well known formula $[X,Y]=\tfrac12\tfrac{\partial^2}{\partial t^2}|_0 (\Fl^Y_{-t}ø\Fl^X_{-t}ø\Fl^Y_tø\Fl^X_t)$ for vector fields , is generalized to arbitrary bracket ex…