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 Jul2 awarded Curious Apr26 accepted Prove that quotient space is homeomorphic to certain space Apr26 accepted Construction of equilateral triangle in Poincare disc model Apr23 accepted Limit in a sense of distributions Apr23 asked Limit in a sense of distributions Apr23 accepted Question about convergence in $\mathcal D(\Bbb R)$ Apr23 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? Apr23 asked Question about convergence in $\mathcal D(\Bbb R)$ Apr21 comment Distributions - please check my solution How should I do this then? Any help is welcome. Apr21 asked Distributions - please check my solution Apr9 accepted Special inequality Apr9 comment Special inequality Yes. It is also known as triangle inequality in Minkowski spacetime for timelike vectors... Apr9 comment Special inequality Error. Inequality is obvious, sorry. Apr9 asked Special inequality Feb4 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... Feb4 comment Uniform convergence in $L^p$-spaces I tried with Holder's inequality (because of $f\in L^p(0,\infty)$). Feb4 asked Uniform convergence in $L^p$-spaces Jan27 asked Construction of equilateral triangle in Poincare disc model Jan12 awarded Scholar Jan12 accepted Topology problem “2013 happy couples”