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Cheburashka
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2
Intersection of uncountable monotone decreasing compact sets
May 4, 2022
question
1
Convex Functionals Weak Inferior Semicontinuity
Apr 1, 2021
question
1
About the ‘exist for each’ ‘exist for every’
Apr 5, 2021
question
1
Show $\|Tf\|_2 \leq \epsilon \|f\|_2+C_\epsilon\|f\|_1$ for a compact operator $T:L^2(0,1)\to L^2(0,1)$
Aug 21, 2021
question
1
solution orbit connects fixed point
Oct 26, 2022
answer
1
Prob. 10, Chap. 2, in Royden's REAL ANALYSIS: If, for some $\alpha>0$, $|a-b|\geq\alpha$ for all $a\in A$ and $b\in B$, then ...
Mar 25, 2021
question
0
Compact onto linear operator from Banach space imply space is finite-dimensional
Mar 23, 2021
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0
The rank of a linear transformation into the space of $n \times n$ matrices
Jul 24, 2023
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Limit inferior taken on the norm of a sequence
Apr 5, 2021
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0
Weak convergence in $L^2$ implies strong convergence?
Apr 7, 2021