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Smoothness of total spaces with nice singular fibers

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#algebraic-geometry #reference-request #complex-geometry #deformation-theory
262
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Small resolution of threefold with a node

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#algebraic-geometry #complex-geometry #deformation-theory #birational-geometry
144
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Tangent space of Deligne-Lusztig variety

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#algebraic-geometry #deformation-theory
32
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Lifting a complete intersection in $\mathbb{P}^n_{\mathbb{F}_p}$ to $\mathbb{Z}_p$

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#flatness #deformation-theory
98
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Are deformations of cyclic modules cyclic?

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#abstract-algebra #reference-request #modules #homological-algebra #deformation-theory
105
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Lifting a Frobenius endomorphism under an étale morphism

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#algebraic-geometry #deformation-theory #positive-characteristic #morphism
141
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Smoothness of morphisms of deformation functors.

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#algebraic-geometry #deformation-theory
68
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Deformation of extensions

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#algebraic-geometry #coherent-sheaves #deformation-theory
1.1k
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Deformation Retract is an isomorphism

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#general-topology #algebraic-topology #deformation-theory #retraction
352
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Deformations of K3 surface is again a K3 surface

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#algebraic-geometry #kahler-manifolds #deformation-theory #k3-surfaces
55
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Is the desingularization of this surfaces of general type?

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#algebraic-geometry #surfaces #singularity-theory #deformation-theory
160
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Fiber product of local artinian rings with a fixed residue field

Published on
#ring-theory #commutative-algebra #category-theory #deformation-theory
276
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Comparing 2 solutions of problem 2 chapter 0 of Allen Hatcher.

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#algebraic-topology #proof-explanation #definition #deformation-theory #retraction
150
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Exact sequence of sheaves on nilpotent thickening

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#algebraic-geometry #flatness #deformation-theory
89
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Filtering a module by square zero extension

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#algebraic-geometry #commutative-algebra #deformation-theory

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