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15
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Which vectors are weight vectors for some Cartan subalgebra?

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#algebraic-geometry #representation-theory #lie-groups #lie-algebras #algebraic-groups
162
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Does a group act on the closure of its orbits?

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#group-actions #topological-groups #algebraic-groups
168
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A ring homomorphism from $k[G]$ to $k$ is an evaluation map?

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#algebraic-geometry #algebraic-groups
79
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Character group of diagonalizable group has no $p$-torsion

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#algebraic-groups #characters #positive-characteristic
50
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is linearisation holomorphic?

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#algebraic-geometry #complex-geometry #algebraic-groups
115
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Some question about algebraic group and Lie algebra action.

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#algebraic-geometry #lie-algebras #algebraic-groups
38
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The invariant ring $S(\mathfrak{h})^W$ in bad characteristic

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#representation-theory #algebraic-groups #invariant-theory
56
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Finite index subgroup of Chevalley groups over $\Bbb C$

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#algebraic-topology #lie-groups #algebraic-groups
116
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Why are unipotent elements of a linear Lie/algebraic group well defined?

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#lie-groups #algebraic-groups
89
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For a connected semisimple Lie group $G$, $\mathrm{Inn}(G)$ is a subgroup of finite index in $\mathrm{Aut}(G)$.

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#lie-groups #lie-algebras #topological-groups #algebraic-groups #locally-compact-groups
404
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Does there exist an injective homomorphism $\phi : \Bbb G_a \to \Bbb G_m$?

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#proof-verification #algebraic-geometry #algebraic-groups
27
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What are all invariant random subgroup on Sub ($R^n$) and Sub($G$)?

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#lie-groups #topological-groups #algebraic-groups #locally-compact-groups
64
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Algebraic Group with two components over algebraically closed field

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#abstract-algebra #algebraic-geometry #representation-theory #algebraic-groups
136
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Decomposition of a vector space $V$ into a direct sum of eigenspaces of semisimple subgroup of $GL(V)$

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#linear-algebra #eigenvalues-eigenvectors #algebraic-groups
436
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Character Variety; why is it a variety?

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#abstract-algebra #group-theory #algebraic-geometry #algebraic-groups

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