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Apr
18
comment On closed totally disconnected subgroups of connected real Lie groups
@Stephen: thanks a lot for your attention.
Apr
17
revised How transitive are the actions of symplectomorphism groups ?
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Apr
17
revised How transitive are the actions of symplectomorphism groups ?
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Apr
17
answered How transitive are the actions of symplectomorphism groups ?
Apr
16
answered Deeper meanings of Phase Space — any books?
Apr
16
comment What is an exponential?
@Hanno Becker @Steve Huntsman just a note: the group of invertible elements in a Banach algebra has natural structure of manifold modeled on the underlying Banach space, and I know Serge Lang's Foundamentals of Differential Geometry as the reference for Banach Manifolds. There the exponential map is associated to any spray on a Banach manifold.
Apr
16
comment On closed totally disconnected subgroups of connected real Lie groups
@Hugo Chapdelaine: does not your question concern Lie groups?
Apr
16
revised On closed totally disconnected subgroups of connected real Lie groups
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Apr
16
awarded  Organizer
Apr
16
revised On closed totally disconnected subgroups of connected real Lie groups
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Apr
16
comment On closed totally disconnected subgroups of connected real Lie groups
and what if we consider a topological group which is not locally euclidean?
Apr
16
revised On closed totally disconnected subgroups of connected real Lie groups
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Apr
16
comment On closed totally disconnected subgroups of connected real Lie groups
@Hugo Capdelaine but in such a case even $G$ would be totally disconnected, while you assume $G$ connected
Apr
16
comment On closed totally disconnected subgroups of connected real Lie groups
@Hugo Chapdelaine: as outlined in my answer, when $H$ is a closed subgroup of the Lie Group $G$, the Cartan--Von Neumann theorem implies that $H$ is an embedded Lie group. Aside it is clear, from the definition, that a topological manifold is totally disconnected if and only if it is 0-dimensional.
Apr
16
revised On closed totally disconnected subgroups of connected real Lie groups
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Apr
16
revised On closed totally disconnected subgroups of connected real Lie groups
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Apr
16
answered On closed totally disconnected subgroups of connected real Lie groups
Apr
16
revised On the proof of the hamiltonian flow box theorem
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Apr
16
revised On the proof of the hamiltonian flow box theorem
I found an error in my argument; deleted 4 characters in body
Apr
15
awarded  Self-Learner