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15
Math.TechQA.Club
2026-03-13 14:24:30
190
Views
Summing over components of a basis: Coalgebra
Published on
13 Mar 2026 - 14:24
#abstract-algebra
#hopf-algebras
#coalgebras
224
Views
Relation of $G$-invariants and $g$ -invariants.
Published on
20 Feb 2016 - 6:29
#modules
#representation-theory
#lie-groups
#lie-algebras
#hopf-algebras
107
Views
Why do we need the condition "cocommutative" in the definition of a coPoisson Hopf algebra?
Published on
26 Mar 2026 - 17:34
#abstract-algebra
#representation-theory
#definition
#hopf-algebras
#quantum-groups
100
Views
An interpretation of this construction giving an operad from a bialgebra?
Published on
25 Feb 2026 - 19:47
#category-theory
#hopf-algebras
#operads
316
Views
What are the natural surjections in the proof of Hopf's classification theorem?
Published on
29 Feb 2016 - 16:31
#abstract-algebra
#algebraic-topology
#commutative-algebra
#hopf-algebras
151
Views
Why is the group $[\Sigma\Sigma X, Y]_{\ast}$ commutative?
Published on
07 Mar 2016 - 19:29
#algebraic-topology
#homotopy-theory
#hopf-algebras
51
Views
Why is $e_m$ a character?
Published on
12 Mar 2016 - 19:16
#algebraic-geometry
#algebraic-groups
#hopf-algebras
487
Views
Is the special orthogonal group really rationally homotopy commutative?
Published on
18 Mar 2016 - 10:14
#algebraic-topology
#lie-groups
#homology-cohomology
#homotopy-theory
#hopf-algebras
109
Views
Why is Hom$_A(M,A)$ a right $\Gamma$ comodule?
Published on
17 Mar 2026 - 20:24
#abstract-algebra
#homological-algebra
#hopf-algebras
#stable-homotopy-theory
149
Views
Alternative Cotensor Definition
Published on
26 Mar 2026 - 19:03
#abstract-algebra
#hopf-algebras
#quantum-groups
63
Views
Help with a statement in P.286 of Hatcher
Published on
31 Mar 2016 - 5:38
#algebraic-topology
#tensor-products
#hopf-algebras
135
Views
Multiplication map for algebras in the sense of Hopf algebra
Published on
11 Apr 2016 - 14:41
#abstract-algebra
#ring-theory
#modules
#hopf-algebras
514
Views
How to proof equivalent condition of algebra morphism and coalgebra morphism about Hopf algebra
Published on
26 Mar 2026 - 3:12
#abstract-algebra
#hopf-algebras
#coalgebras
204
Views
Cosemisimple Hopf algebra and Krull-Schmidt
Published on
26 Mar 2026 - 4:51
#abstract-algebra
#hopf-algebras
#quantum-groups
#coalgebras
304
Views
How $U_{q}(\mathfrak{sl}_{2})$ becomes the universal enveloping algebra $U(\mathfrak{sl}_{2})$ of $\mathfrak{sl}_{2}$
Published on
26 Mar 2026 - 19:03
#lie-algebras
#hopf-algebras
#quantum-groups
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