List questions from quantum-groups

Published on 07 Mar 2017 - 19:06

912

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Duality between universal enveloping algebra and algebras of functions

Published on 29 Mar 2017 - 15:28

150

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What happens if $(f_1\otimes g_1)(u_1 \otimes v_1) = (f_2 \otimes g_2)(u_2 \otimes v_2)$?

Published on 07 Feb 2023 - 13:58

60

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Why we need an orthonormal basis?

Published on 14 Feb 2023 - 18:05

48

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q analogue of a number is a polynomial in $[2]_q$

Published on 25 Mar 2026 - 11:23

64

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Do multi-parameter unitary subgroups exist?

Published on 25 Mar 2026 - 19:00

85

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What is the meaning of $(\mu \otimes \mu) ({\rm id}\otimes \tau \otimes {\rm id})$?

Published on 20 Mar 2026 - 15:31

114

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Proving the uniqueness of a map

Published on 25 Mar 2026 - 20:34

47

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Why are the maps $\eta, \mu, \Delta, \varepsilon$ linear?

Published on 25 Mar 2026 - 20:35

118

Views

Proving that a symmetric bilinear form on $L$ is invariant

Published on 10 Apr 2023 - 3:05

210

Views

Determining the grouplike elements of a Hopf algebra

Published on 19 Mar 2026 - 20:31

271

Views

Find all invariant symmetric bilinear forms of $\mathfrak {sl}(2)$

Published on 15 Apr 2023 - 17:20

19

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Compute $S(E^i F^j K^l)$ in $U_q$

Published on 20 Apr 2023 - 17:27

50

Views

Are all module categories over the category $\mathrm{Rep}_k(G)$ given by $\mathrm{Rep}_k(H)$ for a subgroup $H\subset G$?

Published on 24 Mar 2026 - 0:18

98

Views

How to calculate $\text{End}(V^{\otimes n})$

Published on 23 Feb 2026 - 5:25

List Question

In non-semisimple category $M \otimes N \not\cong N \otimes M$?

Duality between universal enveloping algebra and algebras of functions

What happens if $(f_1\otimes g_1)(u_1 \otimes v_1) = (f_2 \otimes g_2)(u_2 \otimes v_2)$?

Why we need an orthonormal basis?

q analogue of a number is a polynomial in $[2]_q$

Do multi-parameter unitary subgroups exist?

What is the meaning of $(\mu \otimes \mu) ({\rm id}\otimes \tau \otimes {\rm id})$?

Proving the uniqueness of a map

Why are the maps $\eta, \mu, \Delta, \varepsilon$ linear?

Proving that a symmetric bilinear form on $L$ is invariant

Determining the grouplike elements of a Hopf algebra

Find all invariant symmetric bilinear forms of $\mathfrak {sl}(2)$

Compute $S(E^i F^j K^l)$ in $U_q$

Are all module categories over the category $\mathrm{Rep}_k(G)$ given by $\mathrm{Rep}_k(H)$ for a subgroup $H\subset G$?

How to calculate $\text{End}(V^{\otimes n})$

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