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beeselmane
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9 votes
1 answer
223 views

Representations and central extensions of $A_5$

5 votes
1 answer
347 views

Ring structure of the representation ring of a finite group

3 votes
2 answers
136 views

Quotient of a non-elementary nilponent group

1 vote
1 answer
102 views

Cesaro Summation Exercise

1 vote
0 answers
88 views

Sawtooth function Fourier series approaching 1

1 vote
2 answers
186 views

Studying the convergence of a recurrence relation

1 vote
1 answer
89 views

Real matrices commuting with quaternion matrices

1 vote
1 answer
146 views

Irreducible Characters and the Dual Space

0 votes
2 answers
141 views

When is an idempotent matrix the identity?

0 votes
1 answer
326 views

Proving convergence of a sequence with logarithm

0 votes
0 answers
112 views

Variation of Argument definition

0 votes
1 answer
46 views

Pointwise limit and limsup of sets