Eric Thoma
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 1d reviewed Edit Calculate the Laplace Transform : 1d revised Calculate the Laplace Transform : fixed latex May 3 awarded Custodian May 3 reviewed Looks OK How to write lagrangian terms related to only one variable in a semidefinite constraint? May 3 reviewed Approve What is the flaw in the proof that the sum of all positive integers equals to $\frac{-1}{12}$? Apr 29 reviewed No Action Needed Functional equation. Apr 29 reviewed No Action Needed Quadratic inequality (Sign Reversal?) Apr 29 reviewed No Action Needed Is this group given presentation isomorphic to $\mathbb{Z}_2$, and why? Apr 29 reviewed Approve Proof by strong induction combinatorics problem Apr 29 reviewed Approve Does this Condition on Exit Times imply $X_t$ is a Local Supermartingale? Apr 29 reviewed No Action Needed Prove that if $A$, $B$, and $C$ are sets then $(A - B) \cup (A - C) = A - (B \cap C)$ Apr 25 revised Equivalent definition of harmonic functions Removed unrelated harmonic-analysis tag Apr 25 comment Prove by mathematical induction: $n! < n^n$ for $n\geq2$ Hint: $(n+1)^{(n+1)} = (n+1)(n+1)^n \geq (n+1)n^n$. Apr 24 reviewed Approve Solving proportions with multiple variables. Apr 24 comment Bounds on $L^2$ and $L^{\infty}$ norms in terms of $H^1$-seminorms for functions attaining a zero in a domain. There are similar Poincare inequalities in higher dimensions that apply to functions that have trace $0$: en.wikipedia.org/wiki/Poincar%C3%A9_inequality. Apr 24 answered Proving $\|[b,T](f)\|_{p}\le C\|b\|_{BMO(\mathbb{R}^{n})}\|f\|_{p}$ using the Fefferman-Stein inequality Apr 17 reviewed Approve How can I get f(x) from its Maclaurin series? Apr 17 reviewed Approve Can someone explain how the cartesian equation is formed? Apr 17 reviewed Approve Finding the missing values in a trigonometric theoretical scenario? Rocket launch? Apr 17 reviewed Approve Finding polynomial in modular? // $(n!)+1$ prime