Robert Israel
Reputation
98/100 score
 1d revised Given a survival rate matrix, describe what can be said about it added 212 characters in body 1d revised What are the fixed points of $f_ c = c · \sin$ for $c > 1$? added 119 characters in body Apr24 revised Help to verify if this statement is correct? added 181 characters in body Apr23 revised Trouble with two equations with 4 unknowns added 18 characters in body Apr23 revised Interchange of the expected value and infinite summation $E(\sum_{m=0}^\infty (it)^m Y_t^m/m!)=\sum_{m=0}^\infty E((it)^m Y_t^m/m!)$ added 562 characters in body Apr23 revised Interchange of the expected value and infinite summation $E(\sum_{m=0}^\infty (it)^m Y_t^m/m!)=\sum_{m=0}^\infty E((it)^m Y_t^m/m!)$ deleted 76 characters in body Apr23 revised Interchange of the expected value and infinite summation $E(\sum_{m=0}^\infty (it)^m Y_t^m/m!)=\sum_{m=0}^\infty E((it)^m Y_t^m/m!)$ deleted 76 characters in body Apr22 revised Serie involving Bernoulli's numbers added 68 characters in body Apr21 revised Magic square of 5 Entered the matrix in LaTeX Apr20 revised If each term in a sum converges, does the infinite sum converge too? added 4 characters in body Apr20 revised If each term in a sum converges, does the infinite sum converge too? added 366 characters in body Apr20 revised Counter Example to Tietze Extension Property for Arbitrary Topological Space added 12 characters in body Apr20 revised Non-standard question about random variables added 223 characters in body Apr17 revised Does there exist a quadratic generalization of the continued fraction approximants? added 264 characters in body Apr17 revised What is known about optimization of spectral properties of matrices over finite fields? added 85 characters in body Apr16 revised How to evaluate $\log x$ to high precision “by hand” added 381 characters in body Apr15 revised Is $\log_{\cos x}(1)$ defined at $x=0+2k\pi$? added 119 characters in body Apr15 revised Rouche's theorem to P(z)/Q(z) added 419 characters in body Apr15 revised Does $\{y\in \mathbb{R}^n:\operatorname{rank}((x,y,Ay))=2\}$ have zero Lebesgue measure? added 303 characters in body Apr14 revised Ring homomorphism from $M_3(\mathbb{R})$ into $\mathbb{R}$ added 819 characters in body