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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Best m-term approximation of the "step-function" and related problems
Best m-term approximation of the "step-function" and related problemsAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact INI IT. This talk has been canceled/deleted The main point of the talk is the problem of approximation of the step-function by $m$-term trigonometric polynomials and some closely related problems: the approximate rank of a specific triangular matrix, the Kolmogorov width of BV functions. This problem has its origins in approximation theory (best sparse approximation and Kolmogorov widths) as well as in computer science (approximate rank of a matrix). There are different approaches and techniques: $\gamma_2$—norm, random approximations, orthomassivity of a set…. I plan to show what can be achieved by these techniques. This talk is part of the Isaac Newton Institute Seminar Series series. This talk is included in these lists:This talk is not included in any other list Note that ex-directory lists are not shown. |
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