16349 results in Geometry and topology
19 - Vector fields tangent to a variety
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- Singularities, Bifurcations and Catastrophes
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- 24 June 2021, pp 229-246
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I - Catastrophe theory
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15 - Geometric applications
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- 24 June 2021, pp 183-194
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Frontmatter
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22 - Loose ends
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2 - Families of functions
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Monoidal abelian envelopes
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- Compositio Mathematica / Volume 157 / Issue 7 / July 2021
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- 24 June 2021, pp. 1584-1609
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- July 2021
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We prove a constructive existence theorem for abelian envelopes of non-abelian monoidal categories. This establishes a new tool for the construction of tensor categories. As an example we obtain new proofs for the existence of several universal tensor categories as conjectured by Deligne. Another example constructs interesting tensor categories in positive characteristic via tilting modules for
${\rm SL}_2$.
5 - Finite determinacy
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10 - Families of maps and bifurcations
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- 24 June 2021, pp 125-128
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6 - Classification of the elementary catastrophes
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1 - What’s it all about?
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A - Calculus of several variables
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14 - Contact equivalence and unfoldings
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- 24 June 2021, pp 175-182
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Preface
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23 - Constrained bifurcation problem
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13 - Classification for contact equivalence
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D - Rings, ideals and modules
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- 24 June 2021, pp 367-384
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Contents
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E - Solutions to selected problem
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12 - Tangent spaces
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- 24 June 2021, pp 139-162
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