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2d
accepted A problem with equality in a inequality for convex function
2d
awarded  Caucus
2d
revised A problem with equality in a inequality for convex function
added 7 characters in body
2d
comment A problem with equality in a inequality for convex function
Yes. I will correct my answer.
2d
asked A problem with equality in a inequality for convex function
Dec
12
accepted A problem with showing that some subspace is a hyperplane
Dec
12
asked A problem with showing that some subspace is a hyperplane
Dec
6
awarded  Popular Question
Oct
12
accepted Problem with a proof of theorem about diagonalization for selfadjoint operators
Oct
11
comment Problem with a proof of theorem about diagonalization for selfadjoint operators
But you used the spectral theorem. I try to proved this theorem in another way, using the idea of P. Halmos, Finite dimensional vector spaces, par.79, thr.1.
Oct
11
asked Problem with a proof of theorem about diagonalization for selfadjoint operators
Oct
9
accepted How to prove that if $\|f_n-f\|_p \rightarrow 0$ then $\|F_n-F\|_p\rightarrow 0$
Oct
9
comment How to prove that if $\|f_n-f\|_p \rightarrow 0$ then $\|F_n-F\|_p\rightarrow 0$
I needed only $p>1$. Very thanks for answer!
Oct
9
revised How to prove that if $\|f_n-f\|_p \rightarrow 0$ then $\|F_n-F\|_p\rightarrow 0$
edited body
Oct
9
comment How to prove that if $\|f_n-f\|_p \rightarrow 0$ then $\|F_n-F\|_p\rightarrow 0$
I need only $p>1$.
Oct
8
comment How to prove that if $\|f_n-f\|_p \rightarrow 0$ then $\|F_n-F\|_p\rightarrow 0$
I know that it is a consequence of the Hardy's inequality. But i my question we asume that we know this inequality only for continuous functions with compact suport.
Oct
8
asked How to prove that if $\|f_n-f\|_p \rightarrow 0$ then $\|F_n-F\|_p\rightarrow 0$
Oct
5
accepted An oscillation property that implies Hölder continuity of function
Oct
4
asked An oscillation property that implies Hölder continuity of function
Sep
27
accepted Reparametrization of a curve which is not regular