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Questions Tagged with "c star algebras"

Explore solved questions tagged with "c star algebras" or help others by answering their unsolved questions related to "c star algebras".

Eigenvalues of a compact operator with modulus greater than $epsilon$ is finite

1 answer

Mathematics Asked 2 years ago

If $B$ is a $C^*$-subalgebra of $A$, then $sigma_A(b) cup {0} = sigma_B(b) cup {0}$

0 answer

Mathematics Asked 2 years ago

Why is the spectrum of a shift operator the closed unit disk?

1 answer

Mathematics Asked 2 years ago

For any two positive operator $a,b$ with norm $<1$ there is a $c$ such that $a,bleq c$ and $|c|<1$. Does this hold for $|a|=|b|=1$?

1 answer

Mathematics Asked 2 years ago by Sui

Constructing intertwiners between representations of compact quantum groups

1 answer

MathOverflow Asked 3 years ago

Vector-Valued Stone-Weierstrass Theorem?

2 answer

MathOverflow Asked 3 years ago by mw19930312

Why do Internet forums tend to prohibit responding to inactive threads?

7 answer

Community Building Asked 2 years ago by gaazkam

How to crowdfund for Solar Nonprofit to garnish funds to initiate first project

1 answer

Community Building Asked 2 years ago by SolEarth

How to mitigate sockpuppeting?

5 answer

Community Building Asked 2 years ago by golopot

How to bring people only "interested" by an event to come to it?

4 answer

Community Building Asked 2 years ago

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