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seen Sep 5 at 11:53

May
23
revised Solve this without Cauchy-Schwarz?
edited title
May
22
revised Can somebody help me solve the proof about improper integrals?
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May
22
revised Bounded integral operators in Functional analysis
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May
22
revised $\sum a_{n}^{2}$ converges $\Rightarrow\sum \frac{a_{n}}{n}$ converges
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May
22
revised Simple Inequality Proof
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May
21
revised Uniform convergence of the Fourier Series using Bessel's inequality
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May
20
revised Approximating dirac delta function with sinc functions
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May
20
revised Find minimum value of the expression x^2 +y^2 subject to conditions
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May
20
revised Limit of a sequence defined by a sum:
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May
20
comment math student looking to do better in math competitions.
This information is insufficient to give you good advice. How much of an effort are you willing to make? Do you know any undergraduate mathematics? What does it mean for your knowledge and ability to get a silver medal in your country? Could you solve IMO problems? Have you even looked at IMC problems before? I am a great fan of competition mathematics, but I really would not advice anyone to prepare for a competition who did not enjoy the preparation for its own sake.
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?
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May
17
revised Norm of Volterra Operator
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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 $a_n \ge 0$
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May
16
answered What is the most fundamental trigonometric function: cosine or sine?
May
16
revised Inequality concerning sides of a triangle
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May
16
revised Integral estimate
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May
15
revised Cauchy Schwarz inequality with an operator
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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