Tomek Kania

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Name	Tomek Kania
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Location	United Kingdom
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7

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482

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Factoring operators $L_\infty \longrightarrow L_2$ as the composition of $n$ strictly singular operators, $n\in \mathbb{N}$

fa.functional-analysis banach-spaces

jun 16 10 at 15:57 Bill Johnson 14.3k●1●33●60

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5

votes

1

answer

255

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Existence of model of ZF without AC, but with many choice function

axiom-of-choice set-theory

jan 4 at 21:02 Asaf Karagila 7,018●1●14●44

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4

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3

answers

355

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Classic applications of Baire category theorem

real-analysis big-list

may 6 at 19:09 Margaret Friedland 1,359●13●10

2

0

votes

0

answers

196

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Square variation norm and non-negative, non-increasing sequences

banach-spaces sequences-and-series inequalities

jun 19 11 at 0:18 Tomek Kania 903●2●9