NSF award 2452407 · Brown University

Collaborative Research: Non-homogeneous harmonic analysis: matrix weights, Banach space valued Calderon--Zygmund operators, and singular integrals on graphs with cycles

Final report due

29 December 2028

in 803 days · The award ends on 31 August 2028.

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Decide about an extension3 May 2028in 563 days
award ending 2028-08-31 · Research.gov
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Extension request17 Jul 2028in 638 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Aug 2028in 673 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 August 2028.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 29 December 2028.

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Award card

Award number: 2452407
Period of support: 1 Sep 2025 – 31 Aug 2028
Amount: $338,955
Awardee: Brown University, Providence, RI
Program: ANALYSIS PROGRAM, MSPA-INTERDISCIPLINARY
Directorate: MPS

Abstract

Harmonic analysis studies the behavior of various kinds of waves. This study is needed in a wide variety of applications including probability theory, physics, engineering, and medicine. Waves are complicated objects, and the mathematical language used to study them involves the so-called singular integral operators. The word singular shows that those operators are quite intricate. At the present moment singular…

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