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Questions
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Is every finite-dimensional Lie algebra the Lie algebra of a closed linear Lie group?

jul 24 11 at 8:24 amine 431●2●9

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explicit linear representations of fundamental groups of surfaces

feb 1 11 at 20:57 Dan Ramras 3,853●2●17●26

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Complex Lie group without faithful real representations?

apr 22 11 at 16:17 Richard Borcherds 14.2k●2●54●82