Vahid Shirbisheh

852 reputation

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A mathematician working primarily on functional analysis, operator algebras, harmonic analysis and related areas. Recently, I have written a lecture notes on C*-algebras which is available at arXiv.

	852 reputation	bio	website		visits	member for	4 months
28 badges		location			seen	2 days ago

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19 Answers

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7	Do group rings appear outside of representation theory?
5	How to prove the topological space is not metrizable？
4	Does $\sum_{i=1}^n \sin(i)$ converge? Prove it.
3	Annihilator of image $T$ equals to $\text{ker}(T^*)$
3	$\{T(x_n)\}$ is Cauchy in $Y$ whenever $\{x_n\}$ is Cauchy in $X$, we need to show $T$ is continuous.

852 Reputation

+10	How to digest new math more quickly?
+20	Finding a subspace whose intersections with other subpaces are trivial.
+35	strictly positive in unital $C*$ algebra
+10	Structure of $L_1(G)$

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23 Tags

15 general-topology × 5	7 group-ring
11 functional-analysis × 5	7 finite-groups
7 group-theory	6 operator-algebras × 4
7 representation-theory	6 homework × 2
7 reference-request	5 linear-algebra × 2