자료유형 | 학위논문 |
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서명/저자사항 | A Constrained Optimization Problem for the Fourier Transform. |
개인저자 | Maldague, Dominique. |
단체저자명 | University of California, Berkeley. Mathematics. |
발행사항 | [S.l.]: University of California, Berkeley., 2019. |
발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
형태사항 | 89 p. |
기본자료 저록 | Dissertations Abstracts International 81-04B. Dissertation Abstract International |
ISBN | 9781085780421 |
학위논문주기 | Thesis (Ph.D.)--University of California, Berkeley, 2019. |
일반주기 |
Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Advisor: Christ, Michael. |
이용제한사항 | This item must not be sold to any third party vendors.This item must not be added to any third party search indexes. |
요약 | Among functions f majorized by indicator functions of sets E of measure 1, which functions have maximal Fourier transform in Lp? We investigate the existence of maximizers, using a concentration compactness approach and ingredients from additive combinatorics to establish properties of maximizing sequences. For exponents q sufficiently close to even integers, we exploit variational techniques and combinatorial results to identify all maximizers. This follows from establishing a sharper version of an associated inequality: if the input f, where |f| is less than or equal to the indicator function of a measure 1 set E, has a certain structure, then the Fourier transform of f in Lq is at least a certain quantitative distance from being optimal. |
일반주제명 | Mathematics. |
언어 | 영어 |
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