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1,005
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~31k people reached

### Questions (102)

 12 A formula for the power sums: $1^n+2^n+\dotsc +k^n=\,$? 9 $\mathbb{Z}[X]/(X^2-1)$ is not isomorphic with $\mathbb{Z}\times \mathbb{Z}$ 8 Minimal polynomial of $\alpha^2$ given the minimal polynomial of $\alpha$ 7 1 to the power i [duplicate] 6 Find $\lim_{n\to\infty} (1+\frac{1}{2}+…+\frac{1}{n})\frac{1}{n}$

### Reputation (1,005)

 +5 Holonomy of a curve in case of principal $U(1)$ bundle +5 Making a principal bundle into a covering space +5 sum of bernoulli distributed random variables +5 Convolution of matrix coefficients from inequivalent representations

 3 Show that an extension is separable 2 If $V$ is a $\mathbb CG$-module then we may take $\rho(g)$ as a diagonal matrix? 1 General solution of $\frac{d^{2}u}{d\rho^{2}}=\frac{l\left(l+1\right)}{\rho^{2}}u$

### Tags (90)

 5 abstract-algebra × 25 1 quantum-mechanics 3 field-theory × 7 0 ring-theory × 18 3 extension-field × 4 0 probability × 10 2 representation-theory × 5 0 polynomials × 9 1 differential-equations × 2 0 real-analysis × 7

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 Mathematics 1,005 rep 721 Stack Overflow 189 rep 118 Physics 183 rep 115 Ask Ubuntu 101 rep MathOverflow 101 rep