Number of the records: 1

Integer topological charges for finite energy fields in the O(3) σ-model

SYSNO ASEP	0349277
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Integer topological charges for finite energy fields in the O(3) σ-model
Author(s)	Dittrich, Jaroslav (UJF-V)_{RID, ORCID, SAI}
Source Title	Journal of Physics A-Mathematical and Theoretical. - : Institute of Physics Publishing - ISSN 1751-8113 Roč. 43, č. 47 (2010), 474016/1-474016/9
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	HARMONIC MAPS ; REGULARITY ; NUMBER
Subject RIV	BE - Theoretical Physics
R&D Projects	LC06002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10480505 - UJF-V (2005-2011)
UT WOS	000284100400017
DOI	10.10888/1751-8113/43/47/474016
Annotation	In the (2+1)-dimensional classical O(3) σ-model, all finite energy fields have integer topological charges regardless of their asymptotic behavior at infinity. The topological charge is conserved for the fields with the finite Euclidean action, without further assumptions on the field equations or asymptotics. The fields with continuous first derivatives as well as fields in Sobolev-like spaces analogical to W1, 2 are considered.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2011

Number of the records: 1