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age 25
visits member for 3 years, 7 months
seen Jun 9 at 20:38

Jul
12
awarded  Quorum
Oct
19
awarded  Scholar
Oct
19
accepted Unique representation of reals by (infinite) application of the (+,-,/,*,^) operations to elements of $\mathbb Q$?
Oct
19
asked Unique representation of reals by (infinite) application of the (+,-,/,*,^) operations to elements of $\mathbb Q$?
Oct
6
asked For $X \sim \mathrm{Binomial}(n,\frac{1}{2})$ does there exist $a,b,c,Y$ s.t. $\Pr[X=x]\Pr[X \le x] \leq a\Pr[Y=bx+c]$?
Oct
4
revised Number of Unimodular Sequnces
added 4 characters in body
Oct
4
awarded  Teacher
Oct
4
answered products of logarithms
Oct
4
answered Number of Unimodular Sequnces
Oct
4
revised Calculating $\sum_{y=0}^x \Pr[Y= y] \Pr[Z\leq k-y]^2$ when Y,Z are binomially distributed?
added 20 characters in body
Oct
4
revised Calculating $\sum_{y=0}^x \Pr[Y= y] \Pr[Z\leq k-y]^2$ when Y,Z are binomially distributed?
deleted 2 characters in body
Oct
4
awarded  Editor
Oct
4
revised Calculating $\sum_{y=0}^x \Pr[Y= y] \Pr[Z\leq k-y]^2$ when Y,Z are binomially distributed?
added 1215 characters in body; edited title
Oct
2
awarded  Tumbleweed
Sep
25
asked Calculating $\sum_{y=0}^x \Pr[Y= y] \Pr[Z\leq k-y]^2$ when Y,Z are binomially distributed?
Jan
14
comment Interpretation of boundary homomorphism in long exact sequence of homology groups
Can you verify or correct the following reasoning? I don't think it is very nice working with the "same" element in different groups, without giving it different names.. But: $\alpha \in C_n(X,A)$ can be considered as an element $\alpha' \in C_n(X)$, for which it holds that $j(\alpha')=\alpha$. Using the boundary map on chain level, we get $\partial \alpha'$, which is uniquely determined as an element of $C_{n-1}(A)$, since $i$ is an isomorphism by exactness. Since essentially $\alpha'=\alpha$, the desired result holds.
Jan
14
awarded  Student
Jan
14
asked Interpretation of boundary homomorphism in long exact sequence of homology groups