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Mathematics
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user760
  • Member for 7 years, 5 months
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8
Issue with a "proof" for Maschke's Theorem
Feb 19, 2023
6
Vector space translation continuous implies addition continuous?
Mar 11, 2022
6
Example of a point that is not the limit of any sequence in a connected topological space
Feb 15
5
Is every group the semidirect product of its center and inner automorphism group?
Jun 16
5
Is every ring a homomorphic image of some ideal or subring of a free algebra?
Apr 19
4
When are positive elements mapped to $1$ by same pure states
Oct 6, 2022
4
Higher dimensional Goursat theorem and Cauchy theorem possible?
Jul 6
4
What subspace induces a normal subgroup of the fundamental group of the whole space?
Apr 13
4
Linear projections and topological direct sum in normed/Banach spaces
Feb 16, 2023
3
All projections are continuous in a Banach space.
Feb 14, 2023