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yurius
  • Member for 13 years, 11 months
  • Last seen more than 1 year ago
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Research assistant at the University of Erlangen-Nürnberg

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12
Does every commutative $*$-algebra of operators on a prehilbert space have a character?
Nov 14, 2014
answer
10
Sum of two essentially self-adjoint operators
Jun 26, 2012
answer
6
What are the sub $C^*$-algebras of $C(X,M_n)$?
May 16, 2013
question
4
Product of positive commuting operators
Feb 25, 2011
answer
4
Product of commuting nonnegative operators
Jul 8, 2013
question
3
Is $\mathbb R[x,y]_+$ countably generated as a quadratic module?
Aug 11, 2014
answer
1
Sum of operator and adjoint operator
Jun 26, 2012
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55
Fibonacci numbers from $998999$
20
Factorize the polynomial $x^3+y^3+z^3-3xyz$
11
reference for operator algebra
9
Densely injective bounded linear map that is not injective
8
Show these two norms are not equivalent?