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Rundasice
  • Member for 3 years, 11 months
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  • Brussels, Belgium
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5 Answers

Score Activity Newest
1 vote
Accepted

How to calculate the dimension of a space that is defined by symmetric matrices

  • matrices
  • symmetric-matrices
answered Jun 11, 2021 at 10:13
1 vote

Why is $D =d/dx$ an unbounded linear operator?

  • linear-algebra
  • functional-analysis
answered Aug 28, 2021 at 4:33
1 vote

What is the absurd in this proof of the non completeness of ($C[0,1],\| \cdot\|_1)$

  • real-analysis
  • general-topology
  • functional-analysis
  • measure-theory
answered Jan 18, 2022 at 12:01
0 votes
Accepted

How to calculate the integral of $\vec{a}\cdot\nabla(\nabla\cdot\vec{a})$?

  • integration
  • multivariable-calculus
  • vector-analysis
  • vector-fields
  • multiple-integral
answered Apr 14, 2022 at 7:00
0 votes

How to prove that $A \in B(\ell^1 , \ell^2 )$ and compute $\|A\|$

  • functional-analysis
  • banach-spaces
answered Jan 12, 2022 at 21:58
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