Cosection

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The left inverse of a morphism.

    "Provided #92;mathcal#123;R#125; admits a cosection cutting out a 1-dimensional subscheme, we prove that the generating function of these Euler characteristics is equal to M(q)#123;2e(X)#125; times a polynomial of degree c#95;3(#92;mathcal#123;R#125;)."

Example

More examples

"Provided #92;mathcal#123;R#125; admits a cosection cutting out a 1-dimensional subscheme, we prove that the generating function of these Euler characteristics is equal to M(q)#123;2e(X)#125; times a polynomial of degree c#95;3(#92;mathcal#123;R#125;)."

Etymology

From co- + section.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.