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 Feb13 accepted 'Elementary' proof of $\tilde{X}$ is contractible iff $\pi_n(X) =0 \forall n \ge 2$. Jan27 accepted Conservation of bilinear forms and conjugation Jan13 accepted Groups with no nontrivial topology Dec28 accepted Is there a general way to prove series and products are modular? Dec27 accepted Motivation for constructing $F$ s.t. $\ker(\text{curl}) \subset \text{Im}(\text{grad})$, $\ker(\text{div}) \subset \text{Im}(\text{curl})$ Aug16 accepted Proving the Weierstrass M-Test with topology May2 accepted PID question in Ireland and Rosen Apr30 accepted Intuition behind normal subgroups Apr13 accepted Lang's proof of Cauchy's Theorem Mar27 accepted Proving $\frac{\cos(t \arctan(\sqrt{x}))}{(1+x)^{t/2}}= \sum_{k \ge 0}\frac{\Gamma(t+2k)\Gamma(k+1)}{\Gamma(t)\Gamma(2k+1)}\frac{(-x)^k}{k!}$ Mar24 accepted Isomorphism between this subgroup of complex numbers and all finitely generated abelian groups ? Mar20 accepted A closed form for $\sum_{i\cdot j^k=n}(-1)^i$? Mar19 accepted Ramanujan's 'well known' integral, $\int_\frac{-\pi}{2}^\frac{\pi}{2} (\cos x)^m e^{in x}dx$. Feb23 accepted Bessel functions: proof that $J_0(z)=\frac{1}{\pi}\int_0^\pi e^{i z \cos(\theta)}d \theta$. Feb1 accepted Ramanujan's partial fraction decomposition of $\frac{1}{(x^2+a^2)\cdots(x^2+(a+n)^2)}$. Dec21 accepted Why does $\lim_{x \rightarrow 0} B(x,y)$ exist and how is it calculated? Dec7 accepted Closed form for $\int_0^1 \frac{x^a dx}{(1+x^b)^c}$. Nov28 accepted Are there non-affine matrices? Nov27 accepted Is there a link between divergent series and discontinuities in Fourier integrals? Oct30 accepted Why are two directions enough for the Cauchy-Riemann equations to imply differentiability?