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 Apr 12 awarded Popular Question Jul 2 awarded Curious Apr 26 accepted Prove that quotient space is homeomorphic to certain space Apr 26 accepted Construction of equilateral triangle in Poincare disc model Apr 23 accepted Limit in a sense of distributions Apr 23 asked Limit in a sense of distributions Apr 23 accepted Question about convergence in $\mathcal D(\Bbb R)$ Apr 23 comment Question about convergence in $\mathcal D(\Bbb R)$ $\phi_n(x)$ converges to zero. For the first derivative, we have $\phi'_n(x)=\phi'(nx)$, but I can't see if this converges to zero or not? Apr 23 asked Question about convergence in $\mathcal D(\Bbb R)$ Apr 21 comment Distributions - please check my solution How should I do this then? Any help is welcome. Apr 21 asked Distributions - please check my solution Apr 9 accepted Special inequality Apr 9 comment Special inequality Yes. It is also known as triangle inequality in Minkowski spacetime for timelike vectors... Apr 9 comment Special inequality Error. Inequality is obvious, sorry. Apr 9 asked Special inequality Feb 4 comment Uniform convergence in $L^p$-spaces Then I tried to put $t=x y$, but I don't know how should I conclude that the convergence is uniform. Any help is welcome... Feb 4 comment Uniform convergence in $L^p$-spaces I tried with Holder's inequality (because of $f\in L^p(0,\infty)$). Feb 4 asked Uniform convergence in $L^p$-spaces Jan 27 asked Construction of equilateral triangle in Poincare disc model Jan 12 awarded Scholar