List questions from geometric-invariant-theory

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Two equivalent definitions of GIT semistable points

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179

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Proof of "A geometric quotient is categorical"

Published on 20 Oct 2019 - 17:57

98

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All Harder-Narasimhan factors of $E$ are semistable with slope $\leq B \in \mathbb{R}$ implies $E$ semistable

Published on 25 Nov 2019 - 18:38

108

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Quotients of $\mathbb{P}^1 \times \mathbb{P}^1$

Published on 17 Feb 2020 - 14:10

32

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Is the product group of finitely many copies of the multiplicative group of positive real numbers a reductive group?

Published on 17 Feb 2020 - 19:09

323

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Invariants cyclic group actions

Published on 22 Mar 2026 - 1:02

234

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Quotient of closed $G$-invariant subset of $G$-variety

Published on 19 Mar 2020 - 12:53

164

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Relative GIT quotient.

Published on 21 Mar 2026 - 22:15

39

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Action of an algebraic group is closed.

Published on 22 Mar 2026 - 10:46

68

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Linear non-equivalence of regular ternary cubics in normal form

Published on 15 Jan 2017 - 20:35

107

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Proj of an algebra

Published on 22 Mar 2026 - 5:36

170

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Quotient and Cohomology

Published on 21 Mar 2026 - 23:24

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Physicist trying to understand GIT quotient

Published on 22 Mar 2026 - 14:32

637

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Properties preserved by categorical quotient (after Mumford's GIT)

Published on 18 Mar 2017 - 19:19

List Question

Definition of the $\Bbb C^*$-weight of a line bundle

Two equivalent definitions of GIT semistable points

Proof of "A geometric quotient is categorical"

All Harder-Narasimhan factors of $E$ are semistable with slope $\leq B \in \mathbb{R}$ implies $E$ semistable

Quotients of $\mathbb{P}^1 \times \mathbb{P}^1$

Is the product group of finitely many copies of the multiplicative group of positive real numbers a reductive group?

Invariants cyclic group actions

Quotient of closed $G$-invariant subset of $G$-variety

Relative GIT quotient.

Action of an algebraic group is closed.

Linear non-equivalence of regular ternary cubics in normal form

Proj of an algebra

Quotient and Cohomology

Physicist trying to understand GIT quotient

Properties preserved by categorical quotient (after Mumford's GIT)

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