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“Algebraic Geometry”方面的可在此阅读的作品

Algebraic Geometry ×

6 条结果

Some examples of algebraic groups

2026年8月24日理论Sean Cotner

Two pathological phenomena for algebraic groups over general bases — a group degenerating between the multiplicative and additive group across a DVR, and a non-affine identity component — built as centralizers in SL_n.

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180

A curiosity: “supersmooth” varieties

2026年8月24日理论Sean Cotner

A rigidity condition on schemes, strictly stronger than smoothness, introduced with examples and a look at where it fails to be geometric — no known application, just a curiosity.
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120

The torsion component of the Picard scheme

2026年7月29日其他Bogdan Zavyalov

Every finite flat commutative group scheme over a noetherian local ring is the torsion component of the Picard scheme of a smooth projective scheme with 3-dimensional fibers, built as a quotient of a complete intersection. An application: Hodge numbers that jump in a smooth projective family.
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