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visits member for 4 years, 5 months
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2d
reviewed Close Write the inverse of an upper triangular matrix $A$ as a combination of $I$,$A$ and $A^2$
2d
reviewed Close Recognizing when to count multisets
2d
reviewed No Action Needed Assume that $A $ is an $n \times n$ symmetric positive-definite matrix.
2d
reviewed Close Computing an explicit sum of binomial coefficients [Boxing Day Bonus!…]
2d
reviewed Close $\lim_{x\to0}\frac{\sin x-x}{x^3}$ without de l'Hospital's Rule?
2d
reviewed Close Question about Relations!
2d
reviewed Close problem related to convergence of random variables
2d
comment Law of sines: uniform proof of Euclidean, spherical & hyperbolic cases
Could you please add at least a summary of Bär's uniform proof?
2d
reviewed Leave Closed Do all the properties of exponents work for every real exponent?
2d
reviewed Reviewed What is the conjugate prior?
2d
revised for which : $a_{n}$ and $b_{n}$ , $p_{n}=a_{n}x^{n+1}+b_{n}x^n+1$ to be dividing by $(x-1)²$?
edited tags
2d
reviewed Close for which : $a_{n}$ and $b_{n}$ , $p_{n}=a_{n}x^{n+1}+b_{n}x^n+1$ to be dividing by $(x-1)²$?
2d
reviewed No Action Needed What is the probability of a chain of a given length in a random graph?
2d
reviewed Leave Closed Poisson equation with a implicit nonlinearity
2d
reviewed Leave Closed filling polygons automatically
2d
comment Explicit calculation of homology groups of $S^m\times S^n$ and $\mathbb CP^n$
Indeed. So suppose say $n=10$, $m=20$. You know dimensions of all cells of $S^n\times S^m$. Can you now compute homology groups?
2d
reviewed Leave Closed homomorphisms of finitely generated abelian groups
2d
revised Galois Ring and its maximal cyclic subgroups
edited tags
Dec
25
reviewed Reject If $\lim_{x\to\infty}\int_0^x a(t)\,dt=L$, is it true that $\lim_{x\to\infty}a(x)=0?$
Dec
25
reviewed Approve The limit of the alternating series $x - x^2 + x^4 - x^8 + {x^{16}}-\dotsb$ as $x \to 1$