User Nick Strehlke - Mathematics Stack Exchange

Nick Strehlke

Member for 13 years, 1 month
Last seen more than a month ago

Cambridge, MA

71 Answers

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2 votes

Show $\inf_f\int_0^1|f'(x)-f(x)|dx=1/e$ for continuously differentiable functions with $f(0)=0$, $f(1)=1$.

answered Nov 28, 2014 at 2:08

2 votes

Accepted

A Fourier series exercise

answered May 8, 2013 at 0:58

1 vote

Polynomial Growth on a Region

answered May 7, 2013 at 3:18

1 vote

Accepted

Inverse Fourier Transform of $\prod_{j=1}^n \frac{k_j}{k_j+i\omega}$

answered Jun 11, 2013 at 1:54

1 vote

Proving $\lim \limits_{n\to +\infty } \left(1+\frac{x}{n}\right)^n=\text{e}^x$.

answered Jan 7, 2014 at 18:50

1 vote

Can $\int_{-\infty}^{\infty} C(1+x^2)^{-m} \,\mathrm dx$ be evaluated without trig substitution?

answered Jun 21, 2013 at 3:22

1 vote

Expected number of people sitting in the right seats.

answered Jan 11, 2015 at 3:15

1 vote

Accepted

When does the series $\sum_{n=1}^\infty \frac 1{nf(n)}$ converges?

answered Dec 30, 2013 at 23:12

1 vote

Accepted

Hölder Inequality proof in Royden

answered Sep 20, 2011 at 21:36

0 votes

Accepted

Does a Convex Function need to be Continuous

answered Feb 2, 2014 at 0:38

0 votes

Show that for a polynomial $P\left(z\right)$ the sum $\sum_{\left\{ y\,:\, P\left(y\right)=z\right\} }P^{'}\left(y\right)$ does not depend on $z$

answered Jan 18, 2014 at 16:06

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