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Modern introduction to $C^*$-algebras

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#functional-analysis #reference-request #c-star-algebras #banach-algebras #noncommutative-geometry
181
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Pushforward of smooth section is smooth?

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#differential-geometry #lie-groups #lie-algebras #vector-fields #noncommutative-geometry
98
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Quasi-compactness of the Zariski topology on the spectrum of abelian category

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#algebraic-geometry #noncommutative-algebra #abelian-categories #noncommutative-geometry
70
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Simplify the differential form $d [ A, B]$

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#derivatives #differential-geometry #lie-algebras #noncommutative-algebra #noncommutative-geometry
364
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Explicit 4-term commutator $[A,B,C,D]$

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#abstract-algebra #noncommutative-algebra #noncommutative-geometry
186
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What are some ideas on the fastest way to get from undergrad background in math to remotely reasonable understanding of noncommutative geometry.

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#reference-request #noncommutative-geometry
1.4k
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Obtaining rotation matrix from Euler angles if all three rotations happen at once. Does order of multiplication matter?

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#matrices #rotations #noncommutative-geometry
132
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Coproducts and Hochschild

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#abstract-algebra #homological-algebra #homology-cohomology #noncommutative-algebra #noncommutative-geometry
65
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Tor of submodule

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#abstract-algebra #modules #homological-algebra #homology-cohomology #noncommutative-geometry
169
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Example of excision in Hochschild homology

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#abstract-algebra #ring-theory #homological-algebra #noncommutative-algebra #noncommutative-geometry
270
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The first Weyl algebra is Calabi-Yau

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#abstract-algebra #homological-algebra #noncommutative-algebra #duality-theorems #noncommutative-geometry
548
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Roe algebra of a countably infinite set of points

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#operator-algebras #noncommutative-geometry
279
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Isn't the center of a von Neumann algebra on a separable Hilbert space a hyperfinite von Neumann subalgebra?

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#abstract-algebra #c-star-algebras #von-neumann-algebras #noncommutative-geometry
73
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Global dimension of translation algebra

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#homological-algebra #noncommutative-algebra #noncommutative-geometry
179
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Hochschild cohomology of skew polynomial rings

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#algebraic-geometry #ring-theory #noncommutative-algebra #noncommutative-geometry #hochschild-cohomology

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