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  • 20 votes cast
Jan
30
awarded  Popular Question
Jan
15
accepted Largest family of subsets
Oct
12
awarded  Tumbleweed
Oct
7
comment Largest family of subsets
That's actually not quite correct - if $n = 4k + 1$, one can get $n-1 = 4k$ triples, just using the same ones as for $n = 4k$.
Oct
5
asked Largest family of subsets
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Mar
20
accepted What's wrong in this reasoning of $l_\infty$ separability?
Mar
20
comment What's wrong in this reasoning of $l_\infty$ separability?
Thanks for pointing at this, if any of you post it as an answer, I would accept it for sure.
Mar
20
comment What's wrong in this reasoning of $l_\infty$ separability?
@DavidMitra: as each functional on $l_\infty$ is also a functional on $c_0$, the set of functionals on $c_0$ includes the set of functionals on $l_\infty$.
Mar
20
comment What's wrong in this reasoning of $l_\infty$ separability?
@DavidMitra: from 2. follows, that each continuous functional on $l_\infty$ can be narrowed to be a continuous functional on $c_0$ - and it's the same as the third statement.
Mar
20
asked What's wrong in this reasoning of $l_\infty$ separability?
Dec
11
awarded  Benefactor
Dec
5
accepted Linear independence of a modified system
Dec
4
awarded  Promoter
Dec
2
revised Linear independence of a modified system
edited body
Dec
2
asked Linear independence of a modified system
Nov
22
accepted Proving that $\cos(n^a t)$ doesn't converge to $1$
Nov
22
comment Proving that $\cos(n^a t)$ doesn't converge to $1$
@user37238: I mean pointwise convergence, for all $t$. So, if it doesn't converge for one $t$ - then what I need is proven.
Nov
22
asked Proving that $\cos(n^a t)$ doesn't converge to $1$