List questions from group-schemes

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Classification of finite affine group schemes of order $2$

Published on 25 Mar 2026 - 16:03

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Quotient of abelian variety by finite group scheme

Published on 25 Mar 2026 - 6:04

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Proof of "A geometric quotient is categorical"

Published on 10 May 2026 - 12:53

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Quotient of group schemes

Published on 05 Apr 2026 - 21:46

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Reference for functorial point of view in algebraic geometry

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Confused about the axioms of $p$-divisible groups applied to ordinary abelian groups

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About the connected-étale sequence for finite group schemes over a complete noetherian local ring

Published on 25 Mar 2026 - 19:04

139

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Are open $\mathbb{G}_m$-invariant subschemes of an affine scheme precisely the homogeneous radical ideals of its coordinate ring?

Published on 25 Mar 2026 - 17:42

672

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Is multiplication by $n$ always an isogeny on an abelian scheme?

Published on 25 Mar 2026 - 6:12

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

Published on 10 May 2026 - 12:53

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Is the Poincaré sheaf symmetric?

Published on 10 May 2026 - 12:33

213

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When $\phi_{\mathcal L}=0$ for $\mathcal L$ a line bundle over an abelian scheme $X/S$

Published on 10 May 2026 - 12:33

225

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Group schemes, group law and base change

Published on 06 Apr 2026 - 4:15

173

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Proof verification: The symplectic group scheme is smooth over $\mathbb Z$

Published on 25 Mar 2026 - 17:43

List Question

Is a connected unipotent subgroup always contained in a Borel subgroup?

Classification of finite affine group schemes of order $2$

Quotient of abelian variety by finite group scheme

Proof of "A geometric quotient is categorical"

Quotient of group schemes

Reference for functorial point of view in algebraic geometry

Confused about the axioms of $p$-divisible groups applied to ordinary abelian groups

About the connected-étale sequence for finite group schemes over a complete noetherian local ring

Are open $\mathbb{G}_m$-invariant subschemes of an affine scheme precisely the homogeneous radical ideals of its coordinate ring?

Is multiplication by $n$ always an isogeny on an abelian scheme?

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

Is the Poincaré sheaf symmetric?

When $\phi_{\mathcal L}=0$ for $\mathcal L$ a line bundle over an abelian scheme $X/S$

Group schemes, group law and base change

Proof verification: The symplectic group scheme is smooth over $\mathbb Z$

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