Norbert

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location Moscow, Russia
age 25
visits member for 1 year, 6 months
seen 20 mins ago
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List of my favorite questions

When multiplication operator is an isometry/ bounded below?

Continuous projections in $\ell_1$ with norm $>1$


136 Tags

name votes
419
functional-analysis × 221
58
linear-algebra × 25
26
operator-algebras × 14
15
elementary-number-theory × 4
289
calculus × 59
45
integration × 10
25
improper-integrals × 3
14
lp-spaces × 11
232
real-analysis × 82
44
trigonometry × 7
23
metric-spaces × 11
14
fourier-analysis × 6
169
sequences-and-series × 39
42
general-topology × 23
23
geometry × 11
14
summation × 3
158
homework × 56
38
multivariable-calculus × 11
22
roots × 2
14
asymptotics × 3
152
limit × 33
36
complex-analysis × 9
20
differential-equations × 9
13
probability × 7
104
integral × 27
36
definite-integral × 7
20
proof-strategy × 3
13
induction × 2
103
banach-spaces × 57
33
convergence × 15
19
matrices × 12
12
compactness × 6
82
operator-theory × 42
32
derivatives × 4
16
special-functions × 3
11
continuity × 3
71
measure-theory × 36
29
vector-spaces × 11
15
norm × 9
11
analytic-geometry × 2
71
analysis × 33
29
algebra-precalculus × 11
15
topological-vector-spaces × 8
10
c-star-algebras × 4
65
hilbert-spaces × 36
28
functions × 5
15
spectral-theory × 7
10
functional-equations × 4
63
inequality × 16
27
normed-spaces × 20
15
recurrence-relations × 4
9
logarithms × 4
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