Journal of Lie Theory 15 (2005), No. 2, 447--456
Copyright Heldermann Verlag 2005
Lifting Smooth Homotopies of Orbit Spaces of Proper Lie Group Actions
Marja Kankaanrinta
Department of Mathematics, University of Virginia, Charlottesville, VA 22904-4137, U.S.A.
mk5aq@virginia.edu
By a result of G. W. Schwarz, a smooth version of R. S. Palais' covering homotopy theorem holds for actions of compact Lie groups. This paper extends the result of Schwarz to the case of proper actions of non-compact Lie groups. An isotopy lifting theorem is obtained as a corollary.
Keywords: Smooth, homotopy, proper, Lie group, slice.
MSC: 57S20
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