birational geometry
Word Rarity
Very rare
Frequency: Zipf frequency 1.13 in modern English
26
Scrabble Score
18
Letters
7
Syllables
12
Unique Chars
Meaning
noun
A field of algebraic geometry in which the aim is to determine under what conditions two algebraic varieties are isomorphic outside lower-dimensional subsets.
Uncountable
Example Sentences
- "Birational geometry amounts to the study of mappings given by rational functions rather than polynomials."
- "1999, Yongbin Ruan, Surgery, Quantum Cohomology and Birational Geometry, Ya. Eliashberg, D. Fuchs, T. Ratiu, Alan Weinstein (editors), Northern California Symplectic Geometry Seminar, American Mathematical Society, Translations, Series 2, Volume 196, page 183, Recently, some amazing relations between quantum cohomology and birational geometry have been discovered."
- "2008, Paltin Ionescu, Birational geometry of rationally connected manifolds via quasi-lines, Ciro Ciliberto, et al., Projective Varieties with Unexpected Properties, Walter de Gruyter, page 317, This is, mostly, a survey of results about the birational geometry of rationally connected manifolds, using rational curves analogous to lines in ℙⁿ (quasi-lines)."
- "2009, Claudio Bartocci, Ugo Bruzzo, Daniel Hernández Ruipérez, Fourier-Mukai and Nahm Transforms in Geometry and Mathematical Physics, Springer (Birkhäuser), Progress in Mathematics 276, page 233, In this chapter we offer some applications of Fourier-Mukai transforms, namely, a classification of the Fourier-Mukai partners of complex projective surfaces, some issues in birational geometry, and an approach to the McKay correspondence via Fourier-Mukai transform."
Usage
Phrases
birational automorphism
birational automorphism group
birational equivalence
birational invariant
birational mapping
birational morphism
Frequently Paired Words
birational automorphism
birational automorphism group
birational equivalence
birational invariant
birational mapping
birational morphism
blowup
plurigenus