Dustin G. Mixon
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 Mar 31 awarded Popular Question Dec 12 awarded Yearling Aug 8 answered Mathematical software wish list Jul 16 answered Maximal $\pi/2$-separated subset of the sphere Jul 7 answered Uniform Sampling Subject to Linear Equalities and Non-Negativity Constraint Jul 1 accepted Can phase significantly concentrate a function's spectrum? Jul 1 comment Can phase significantly concentrate a function's spectrum? @RajeshD - My motivation is to find better uncertainty principles, which definitely find applications in signal processing (analyzing sparse signals, compressed sensing, etc). Jul 1 answered Convergence of weighted double sum of random variables Jul 1 revised Generate Bernoulli vector with given covariance matrix added 10 characters in body Jul 1 answered Generate Bernoulli vector with given covariance matrix Jun 30 comment Can phase significantly concentrate a function's spectrum? @WillSawin - I have a lot more intuition about the Fourier transform of $\sin(2\pi n\cdot)$ than I do about $f_n$. Perhaps you conflated the two? Jun 30 comment Can phase significantly concentrate a function's spectrum? Thanks! I'm not sure I agree with your gut, though. Taking $x_a(t):=\operatorname{sin}(2\pi at/n)$, simulations suggest that $\inf_{a,n}\|F_nx_a\|_1/\|F_n|x_a|\|_1=\pi/4$, where $F_n$ denotes the DFT over $\mathbb{Z}/n\mathbb{Z}$. Jun 30 revised Can phase significantly concentrate a function's spectrum? added 237 characters in body Jun 29 asked Can phase significantly concentrate a function's spectrum? Jun 29 awarded Nice Answer Jun 29 accepted Does $(\mathbb{Z}/n\mathbb{Z})^2$ ever admit a difference set when $n$ is odd? Jun 28 reviewed Approve Inverse Galois Problem…and parallelizable vector fields? Jun 28 comment Largest symmetric matrix given rank Good point. I updated my answer accordingly. Jun 28 revised Largest symmetric matrix given rank added 72 characters in body Jun 28 answered Largest symmetric matrix given rank