scientific article; zbMATH DE number 5490316

Sergei Tabachnikov, Valentin Ovsienko

Publication date: 13 January 2009

Full work available at URL: http://www.ams.org/notices/200901/tx090100034p.pdf

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

Virasoro algebra Sturm-Liouville equation cross ratio group cocycle conformal Schwarzian Lagrangian Schwarzian group cocycle

Mathematics Subject Classification ID

Introductory exposition (textbooks, tutorial papers, etc.) pertaining to differential geometry (53-01) Projective differential geometry (53A20) Differential invariants (local theory), geometric objects (53A55) Plane and spherical trigonometry (educational aspects) (97G60)

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