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Janov
  • Member for 9 years
  • Last seen more than a week ago
  • Basel, Schweiz
3 votes
3 answers
591 views

Proof: are restriction to operators diagnolizable if the operator is?

3 votes
1 answer
310 views

Dense sets in complement-countable topology

2 votes
0 answers
201 views

Operator expansion for $\ln(A+tB)$

2 votes
1 answer
205 views

Mass of a wire: intersection of surfaces

2 votes
1 answer
54 views

Composing Linear Transformations

1 vote
0 answers
98 views

Why does Vitali sets motivate measurability definition?

1 vote
1 answer
400 views

X is second countable then $A\subset X$ has an accumulation point

1 vote
1 answer
855 views

Surface integral: Cone cut by a cylinder

1 vote
2 answers
4k views

Proof of a p-norm and Cauchy/Cauchy-Schwarz inequality generalization

1 vote
0 answers
98 views

Solving a multivariate recurrence relation (or its dual PDE)

1 vote
1 answer
42 views

Proximity in the sup norm implies proximity in the $L^{p}$ norm

0 votes
1 answer
419 views

A linear functional who doesn't reach its norm

0 votes
2 answers
148 views

Convergence in infinite(Tychonoff) product

0 votes
2 answers
95 views

Are bounded functions whose f(a)>0, for a fixed a, a open set?