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Jul
27
accepted Prove that for $\alpha$ an ordinal, $\alpha \le \omega^\alpha$.
May
11
accepted Closed form or asymptotic expansion for $\int_0^m \frac{n^x}{\Gamma(x+1)}dx$?
Feb
13
accepted 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$.
Jan
27
accepted Conservation of bilinear forms and conjugation
Jan
13
accepted Groups with no nontrivial topology
Dec
28
accepted Is there a general way to prove series and products are modular?
Dec
27
accepted Motivation for constructing $F$ s.t. $\ker(\text{curl}) \subset \text{Im}(\text{grad})$, $\ker(\text{div}) \subset \text{Im}(\text{curl})$
Aug
16
accepted Proving the Weierstrass M-Test with topology
May
2
accepted PID question in Ireland and Rosen
Apr
30
accepted Intuition behind normal subgroups
Apr
13
accepted Lang's proof of Cauchy's Theorem
Mar
27
accepted Proving $\frac{\cos(t \arctan(\sqrt{x}))}{(1+x)^{t/2}}= \sum_{k \ge 0}\frac{\Gamma(t+2k)\Gamma(k+1)}{\Gamma(t)\Gamma(2k+1)}\frac{(-x)^k}{k!}$
Mar
24
accepted Isomorphism between this subgroup of complex numbers and all finitely generated abelian groups ?
Mar
20
accepted A closed form for $\sum_{i\cdot j^k=n}(-1)^i$?
Mar
19
accepted Ramanujan's 'well known' integral, $\int_\frac{-\pi}{2}^\frac{\pi}{2} (\cos x)^m e^{in x}dx$.
Feb
23
accepted Bessel functions: proof that $J_0(z)=\frac{1}{\pi}\int_0^\pi e^{i z \cos(\theta)}d \theta$.
Feb
1
accepted Ramanujan's partial fraction decomposition of $\frac{1}{(x^2+a^2)\cdots(x^2+(a+n)^2)}$.
Dec
21
accepted Why does $\lim_{x \rightarrow 0} B(x,y)$ exist and how is it calculated?
Dec
7
accepted Closed form for $\int_0^1 \frac{x^a dx}{(1+x^b)^c}$.
Nov
28
accepted Are there non-affine matrices?