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Why is "Morse–Sard–Federer theorem" trending?

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Trend Analysis

  • Ranking position: #
  • Date: 2026-04-15 01:24:46

This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.

Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.

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Wikipedia Overview

In mathematics, Sard's theorem, also known as Sard's lemma or the Morse–Sard theorem, is a result in mathematical analysis that asserts that the set of critical values of a smooth function f from one Euclidean space or manifold to another is a null set, i.e., it has Lebesgue measure 0. This makes the set of critical values "small" in the sense of a generic property. The theorem is named for Anthony Morse and Arthur Sard.

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