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Advances in Mathematics· 2026Q1

Brylinski-Radon transformation in characteristic p > 0

Deepam Patel, K. V. Shuddhodan

Short summary

The image of the Brylinski-Radon transform in characteristic p > 0 is characterized using Beilinson's theory of singular support, resolving a question posed by Brylinski.

AI-generated from the title and abstract; the full text is not read.

Key points

  • Characterizes the image of the Brylinski-Radon transform in characteristic p > 0.
  • Utilizes Beilinson's theory of singular support to achieve this characterization.
  • Provides an alternate proof of Brylinski's results over C, valid for sheaves with finite coefficients.
  • Derives a microlocal criterion for the descent of perverse sheaves.

AI-generated from the title and abstract; the full text is not read.

Abstract

In this article, we characterize the image of the Brylinski-Radon transform in characteristic p > 0 via Beilinson's theory of singular support, settling a question of Brylinski. We also provide an alternate proof of Brylinski's results over C , which also works for sheaves with finite coefficients. Along the way, we also obtain a microlocal criterion for the descent of perverse sheaves which could be of independent interest.

The authors' abstract, as published at the source. Advances in Mathematics, 2026 · DOI ↗

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Field: Mathematical Physics

Mathematical PhysicsMathematics