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 May 22 revised Bounded integral operators in Functional analysis deleted 1 character in body May 22 revised $\sum a_{n}^{2}$ converges $\Rightarrow\sum \frac{a_{n}}{n}$ converges deleted 1 character in body May 22 revised Simple Inequality Proof deleted 1 character in body May 21 revised Uniform convergence of the Fourier Series using Bessel's inequality deleted 4 characters in body May 20 revised Approximating dirac delta function with sinc functions deleted 1 character in body May 20 revised Find minimum value of the expression x^2 +y^2 subject to conditions deleted 1 character in body May 20 revised Limit of a sequence defined by a sum: deleted 1 character in body May 17 revised When does $x_1+x_2+\dots+x_n=a,\space x_1^2+x_2^2+\dots+x_n^2=b$ have a unique solution? deleted 1 character in body May 17 revised Norm of Volterra Operator deleted 1 character in body May 17 revised Solution Verification: $\sum_{n = 1}^{\infty} a_n \lt \infty \implies \sum_{n = 1}^{\infty} \dfrac{\sqrt{a_n}}{n} \lt \infty$ if $a_n \ge 0$ deleted 1 character in body May 16 answered What is the most fundamental trigonometric function: cosine or sine? May 16 revised Inequality concerning sides of a triangle deleted 1 character in body May 16 revised Integral estimate deleted 1 character in body May 13 comment Prove the sequences $\lfloor \alpha n\rfloor$ and $\lfloor \beta n\rfloor$ are disjoint @GabrielR. How many of the numbers in the first sequence are smaller than $n$? May 13 comment Prove the sequences $\lfloor \alpha n\rfloor$ and $\lfloor \beta n\rfloor$ are disjoint @i707107 Do you think that this is a good hint? May 13 comment Existence of functions which satisfy some conditions For you, too: spikedmath.com/170.html May 13 comment Existence of functions which satisfy some conditions spikedmath.com/170.html May 13 comment Prove the sequences $\lfloor \alpha n\rfloor$ and $\lfloor \beta n\rfloor$ are disjoint Try to count how many numbers in both sequences together are of size at most $n$. May 12 comment How do we pronounce this symbol? @Mathias711 It used to be one of the community ads, I do not know if it is now. May 12 comment How do we pronounce this symbol? Detexify can sometimes help with this kind of question: detexify.kirelabs.org/classify.html