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Pedro Brunialti

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11 Questions

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Group Structure on Homotopy Classes of Homotopies

homotopy-theory model-categories

Dec 22 at 18:11 Pedro Brunialti 1,181

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answers

views

When does a homotopy exist?

algebraic-topology homotopy-theory homotopy-extension-property

Sep 16 at 19:39 Pedro Brunialti 1,181

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answer

views

Right Lifting Properties Against Relative Cell Complexes

category-theory homotopy-theory model-categories

Aug 18 at 3:06 Zhen Lin 74.5k

votes

answer

146

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Triviality of Vector bundles.

vector-bundles fiber-bundles

Jul 5 at 19:09 Jack Lee 36.3k

vote

answer

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Is the inclusion of the wedge sum into the reduced cylinder a relative cell complex?

algebraic-topology homotopy-theory cw-complexes

Nov 4 at 14:18 Connor Malin 7,840

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answer

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Homeomorphism from the real numbers to the real numbers with restriction to the Cantor set.

real-analysis cantor-set

Sep 25 '19 at 4:58 Eric Wofsey 263k

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answer

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Example of two subrings with unity of a ring with unity whose intersection is non trivial and has no unity.

ring-theory rngs

Aug 28 '19 at 21:37 gregorygsimon 56

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answer

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Confusion about the underlying function of a Functor.

functions category-theory functors

Jun 27 at 1:22 yoyo 7,670

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answers

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When is the tensor product of representations inequivalent.

abstract-algebra group-theory representation-theory

Mar 24 '20 at 17:32 Pedro Brunialti 1,181

votes

answers

103

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Isomorphism of X to itself. [closed]

linear-algebra vector-space-isomorphism

Dec 26 '18 at 13:04 Community♦ 1

votes

answer

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Eigenvalues of Adjoint Transformation

linear-algebra eigenvalues-eigenvectors linear-transformations

Dec 2 '18 at 1:29 Anders Beta 1,023

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11 Questions

Group Structure on Homotopy Classes of Homotopies

When does a homotopy exist?

Right Lifting Properties Against Relative Cell Complexes

Triviality of Vector bundles.

Is the inclusion of the wedge sum into the reduced cylinder a relative cell complex?

Homeomorphism from the real numbers to the real numbers with restriction to the Cantor set.

Example of two subrings with unity of a ring with unity whose intersection is non trivial and has no unity.

Confusion about the underlying function of a Functor.

When is the tensor product of representations inequivalent.

Isomorphism of X to itself. [closed]

Eigenvalues of Adjoint Transformation