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 Apr 23 reviewed Leave Open Recommend guide book of algebraic geometry Apr 23 reviewed Leave Open Real Analysis, Folland problem 6.1.11 $L^p$ spaces Apr 23 reviewed Leave Open Newton's Law of Cooling Apr 23 reviewed Leave Open Supercompact cardinals and $H_{\theta^+}$ Apr 23 reviewed Close Why tensor product is used in local expression of Riemannian metric? Apr 23 reviewed Leave Open Current differential equation Apr 20 comment Is mathematical history written by the victors? You can send it to tuvegeto137@gmail.com . Apr 19 comment Is mathematical history written by the victors? Oh, hello! Nice to see you came into contact with Claude Lobry. Is he still working at Sophia-Antipolis? Or is he already retired? I'm certainly interested in a copy. Just tell me when you can send it to me. Apr 17 comment Simplify/expand $\ln \left(\sum^n_{i=1}x_i^{\theta-1}\right)$ $(\theta-1)\ln\left( (\sum^n_{i=1}x_i^{\theta-1})^{1/(\theta-1)} \right)$ Apr 10 comment Solving an inequality using the Mean Value Theorem Can you really not do better for the lower bound? Mar 9 comment Find $\max_{0 < \beta < 1/2} \{\min \{\alpha - \beta, 1 - 2\beta, \beta \alpha\}\}$ A constraint that is given by an inequality can always be turned into an equality by introducing an extra variable. So $g(x)>0$ becomes $g(x)-e=0$ with $e>0$. Note however, that you'll always have an inequality, even though it is simpler to analyse. $e$ in this case is called an excess variable, because it measures exactly how much bigger $g(x)$ is compared to $0$. Mar 2 comment Financial mathematics - earning compound interest You forgot to factor in the interest gained at time 3. Feb 17 reviewed Reject Find orthogonal projection to x-y, x-z, and z-y, plane Feb 17 reviewed Reject wiener-measure tag wiki excerpt Feb 17 reviewed Reject topological-rings tag wiki excerpt Feb 17 reviewed Reject logistic-regression tag wiki Feb 17 reviewed Reject integral-geometry tag wiki excerpt Jan 21 comment Probability that the Series ends in $6$ games in the World series. What if X loses the second and fourth game but wins every other game? Jan 17 answered Calculate: $\lim_{x\to 0} \frac{f(x^2)-f(0)}{\sin^2(x)}$. Dec 31 comment Prove: Expectation value is the weighted average It's not clear what you mean with the notation in the right hand side. Provide some context please.