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  • 0 posts edited
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  • 73 votes cast
May
7
accepted Is my proof for $\sum_{i=1}^{n}x_{i}y_{i}\leq \sqrt{\sum_{i=1}^{n}x_{i}^{2}\sum_{i=1}^{n}y_{i}^{2}}$ correct?
May
7
revised Is my proof for $\sum_{i=1}^{n}x_{i}y_{i}\leq \sqrt{\sum_{i=1}^{n}x_{i}^{2}\sum_{i=1}^{n}y_{i}^{2}}$ correct?
deleted 28 characters in body
May
7
asked Is my proof for $\sum_{i=1}^{n}x_{i}y_{i}\leq \sqrt{\sum_{i=1}^{n}x_{i}^{2}\sum_{i=1}^{n}y_{i}^{2}}$ correct?
May
7
comment Proof by induction of triangle inequality in Hilbert space.
you look again on my proof ?
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 72 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 72 characters in body
May
7
accepted Proof by induction of triangle inequality in Hilbert space.
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 3 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 3 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 3 characters in body
May
7
comment Proof by induction of triangle inequality in Hilbert space.
so information about that we are in l2 space is worth nothing ? so it's also true for Hilbert cube Q ?
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 576 characters in body
May
7
asked Proof by induction of triangle inequality in Hilbert space.
May
6
revised Is $\pi$ periodic in any numeral system?
added 28 characters in body
May
6
asked Is $\pi$ periodic in any numeral system?
Apr
11
revised When is this equation true?
added 1 characters in body
Apr
11
comment When is this equation true?
Thanks Anthales, I've made a few mistakes in my question.
Apr
11
revised When is this equation true?
added 53 characters in body
Apr
11
asked When is this equation true?
Apr
10
awarded  Scholar