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Dec
30
revised Cardinality of the set of all real functions which have a countable set of discontinuities
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Dec
30
answered Cardinality of the set of all real functions which have a countable set of discontinuities
Dec
30
revised Let $|x|\leq1, |y|\leq 1$. Show that$0 \leq x^{2}+y^{2} -2x^{2} y^{2}+2xy \sqrt{1-x^{2}} \sqrt{1-y^{2}} \leq 1$
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Dec
30
answered Let $|x|\leq1, |y|\leq 1$. Show that$0 \leq x^{2}+y^{2} -2x^{2} y^{2}+2xy \sqrt{1-x^{2}} \sqrt{1-y^{2}} \leq 1$
Nov
28
accepted how prove GL(n,R) is not connected subset and open subset of$M_n (\mathbb{R})$with this distance
Nov
28
awarded  Popular Question
Nov
12
revised prove continuity of additive function of integer group under topology $T=\{ \mathbb Z,\emptyset \} \cup\{[n,\infty), n \in \mathbb Z\}$
edited body
Nov
12
revised prove continuity of additive function of integer group under topology $T=\{ \mathbb Z,\emptyset \} \cup\{[n,\infty), n \in \mathbb Z\}$
edited tags
Nov
12
asked prove continuity of additive function of integer group under topology $T=\{ \mathbb Z,\emptyset \} \cup\{[n,\infty), n \in \mathbb Z\}$
Oct
29
asked Question about dense trajectory on $k$-dimensional torus under rotation map
Oct
24
awarded  Yearling
Aug
27
awarded  Nice Answer
Aug
22
awarded  Tumbleweed
Jun
9
awarded  Nice Question
May
21
awarded  Popular Question
Apr
8
revised How to visualize permutations?
added 101 characters in body
Apr
7
answered How to visualize permutations?
Apr
7
reviewed Approve If $f$ is a nondecreasing function on $[a,b]$..
Apr
7
comment Intuitive explanation for why the group $S_n$ has $n!$ elements
what did you tried to prove it ?
Mar
15
comment Reference request : Ergodic theory and Number theory
I read Ergodic theory With Topological aspect,I looked at it but i didn't read it completely