J 2012

Free CR distributions

SLOVÁK, Jan and Gerd SCHMALZ

Basic information

Original name

Free CR distributions

Name in Czech

Volné CR distribuce

Authors

SLOVÁK, Jan (203 Czech Republic, guarantor, belonging to the institution) and Gerd SCHMALZ (276 Germany)

Edition

Central European Journal of Mathematics, 2012, 1895-1074

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10101 Pure mathematics

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.405

RIV identification code

RIV/00216224:14310/12:00057986

Organization unit

Faculty of Science

UT WoS

000306731000020

Keywords in English

Cartan connection; Cartan curvature; Parabolic geometry; Fefferman construction

Tags

Tags

International impact, Reviewed
Změněno: 3/1/2013 14:30, prof. RNDr. Jan Slovák, DrSc.

Abstract

V originále

There are only some exceptional CR dimensions and codimensions such that the geometries enjoy a discrete classification of the pointwise types of the homogeneous models. The cases of CR dimensions n and codimensions n (2) are among the very few possibilities of the so-called parabolic geometries. Indeed, the homogeneous model turns out to be PSU(n+1,n)/P with a suitable parabolic subgroup P. We study the geometric properties of such real (2n+n (2))-dimensional submanifolds in for all n > 1. In particular, we show that the fundamental invariant is of torsion type, we provide its explicit computation, and we discuss an analogy to the Fefferman construction of a circle bundle in the hypersurface type CR geometry.

In Czech

Článek studuje výjimečné geometrie zděděné automaticky na generických plochách vysoké kodimenze v CR varietách. Využívá obecnou teorii parabolických geometrií k jejich studiu a podává také konstrukci analogickou k Feffermanově bandlu kružnic v případě kodimenze jedna.

Links

GA201/08/0397, research and development project
Name: Algebraické metody v geometrii a topologii
Investor: Czech Science Foundation, Algebraic methods in geometry and topology

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