167

Answers
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Corona Theorem in several variables
4
Quasinilpotent elements of group C-star algebras
9
Compactly generated Banach spaces
12
Subgroups of $\mathbb{Z}^n$
1
Translation of a non-standard analysis formulation
4
On similar concepts in mathematics whose similarity is a non-trivial fact.
6
Is every subgroup of a connected unimodular (matrix) Lie group also unimodular?
6
Strongly convergent operator sequence
3
Bounded inverse to morphism of Banach algebras
3
ultrapowers of Banach algebras
9
Pathological Examples of Dimension
4
Why 2 as an exponent in the euclidean vector space?
2
Which W*-algebras are the duals of C*-coalgebras?
1
When is a Banach Algebra $C^\star$
1
Instances where an existence result precedes the constructive version
10
Dimensions of unitary representations of group extensions
6
Upper bound for largest eigenvalue of 0-1 matrix
1
Fiction books about mathematicians?
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Proof by `universal receiver'
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Not especially famous, long-open problems which higher mathematics beginners can understand
15
Fundamental problems whose solution seems completely out of reach (2)
6
modules over group algebras
5
Applications of Liouville’s theorem
74
Not especially famous, long-open problems which anyone can understand
2
Blackbox Theorems
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convergence of the coefficients of lacunary series
1
Approachable French Masters
7
Projections which are not completely bounded
8
Riemann zeta at even integers
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is a non-invertible operator a boundary point of the group of invertible operators?
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