The Laplacian Flow of Locally Conformal Calibrated G2-Structures

We consider the Laplacian flow of locally conformal calibrated G 2 -structures as a natural extension to these structures of the well-known Laplacian flow of calibrated G 2 -structures. We study the Laplacian flow for two explicit examples of locally conformal calibrated G 2 ma...

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Main Authors: Marisa Fernández, Victor Manero, Jonatan Sánchez
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Axioms
Subjects:
Online Access:http://www.mdpi.com/2075-1680/8/1/7
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author Marisa Fernández
Victor Manero
Jonatan Sánchez
author_facet Marisa Fernández
Victor Manero
Jonatan Sánchez
author_sort Marisa Fernández
collection DOAJ
description We consider the Laplacian flow of locally conformal calibrated G 2 -structures as a natural extension to these structures of the well-known Laplacian flow of calibrated G 2 -structures. We study the Laplacian flow for two explicit examples of locally conformal calibrated G 2 manifolds and, in both cases, we obtain a flow of locally conformal calibrated G 2 -structures, which are ancient solutions, that is they are defined on a time interval of the form ( − ∞ , T ) , where T > 0 is a real number. Moreover, for each of these examples, we prove that the underlying metrics g ( t ) of the solution converge smoothly, up to pull-back by time-dependent diffeomorphisms, to a flat metric as t goes to − ∞ , and they blow-up at a finite-time singularity.
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spelling doaj.art-16b2ce1c03e34d66943476bab0ebc5962022-12-22T02:51:17ZengMDPI AGAxioms2075-16802019-01-0181710.3390/axioms8010007axioms8010007The Laplacian Flow of Locally Conformal Calibrated G2-StructuresMarisa Fernández0Victor Manero1Jonatan Sánchez2Departamento de Matemáticas, Facultad de Ciencia y Tecnología, Universidad del País Vasco, Apartado 644, 48080 Bilbao, SpainDepartamento de Matemáticas—IUMA, Facultad de Ciencias Humanas y de la Educación, Universidad de Zaragoza, 22003 Huesca, SpainDepartamento de Matemáticas, Facultad de Ciencia y Tecnología, Universidad del País Vasco, Apartado 644, 48080 Bilbao, SpainWe consider the Laplacian flow of locally conformal calibrated G 2 -structures as a natural extension to these structures of the well-known Laplacian flow of calibrated G 2 -structures. We study the Laplacian flow for two explicit examples of locally conformal calibrated G 2 manifolds and, in both cases, we obtain a flow of locally conformal calibrated G 2 -structures, which are ancient solutions, that is they are defined on a time interval of the form ( − ∞ , T ) , where T > 0 is a real number. Moreover, for each of these examples, we prove that the underlying metrics g ( t ) of the solution converge smoothly, up to pull-back by time-dependent diffeomorphisms, to a flat metric as t goes to − ∞ , and they blow-up at a finite-time singularity.http://www.mdpi.com/2075-1680/8/1/7locally conformal calibrated G2-structuresLaplacian flowsolvable Lie algebras
spellingShingle Marisa Fernández
Victor Manero
Jonatan Sánchez
The Laplacian Flow of Locally Conformal Calibrated G2-Structures
Axioms
locally conformal calibrated G2-structures
Laplacian flow
solvable Lie algebras
title The Laplacian Flow of Locally Conformal Calibrated G2-Structures
title_full The Laplacian Flow of Locally Conformal Calibrated G2-Structures
title_fullStr The Laplacian Flow of Locally Conformal Calibrated G2-Structures
title_full_unstemmed The Laplacian Flow of Locally Conformal Calibrated G2-Structures
title_short The Laplacian Flow of Locally Conformal Calibrated G2-Structures
title_sort laplacian flow of locally conformal calibrated g2 structures
topic locally conformal calibrated G2-structures
Laplacian flow
solvable Lie algebras
url http://www.mdpi.com/2075-1680/8/1/7
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