Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency

We propose the notion of integrable boundary in the context of discrete integrable systems on quad-graphs. The equation characterizing the boundary must satisfy a compatibility equation with the one characterizing the bulk that we called the three-dimensional (3D) boundary consistency. In comparison...

Full description

Saved in:
Bibliographic Details
Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2014
Main Authors: Caudrelier, V., Crampé, N., Zhang, Q.C.
Format: Article
Language:English
Published: Інститут математики НАН України 2014
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/146841
Tags: Add Tag
No Tags, Be the first to tag this record!
Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency / V. Caudrelier, N. Crampé, Q.C. Zhang // Symmetry, Integrability and Geometry: Methods and Applications. — 2014. — Т. 10. — Бібліогр.: 30 назв. — англ.

Institution

Digital Library of Periodicals of National Academy of Sciences of Ukraine
_version_ 1862582272016777216
author Caudrelier, V.
Crampé, N.
Zhang, Q.C.
author_facet Caudrelier, V.
Crampé, N.
Zhang, Q.C.
citation_txt Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency / V. Caudrelier, N. Crampé, Q.C. Zhang // Symmetry, Integrability and Geometry: Methods and Applications. — 2014. — Т. 10. — Бібліогр.: 30 назв. — англ.
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We propose the notion of integrable boundary in the context of discrete integrable systems on quad-graphs. The equation characterizing the boundary must satisfy a compatibility equation with the one characterizing the bulk that we called the three-dimensional (3D) boundary consistency. In comparison to the usual 3D consistency condition which is linked to a cube, our 3D boundary consistency condition lives on a half of a rhombic dodecahedron. The We provide a list of integrable boundaries associated to each quad-graph equation of the classification obtained by Adler, Bobenko and Suris. Then, the use of the term ''integrable boundary'' is justified by the facts that there are Bäcklund transformations and a zero curvature representation for systems with boundary satisfying our condition. We discuss the three-leg form of boundary equations, obtain associated discrete Toda-type models with boundary and recover previous results as particular cases. Finally, the connection between the 3D boundary consistency and the set-theoretical reflection equation is established.
first_indexed 2025-11-26T22:57:45Z
format Article
fulltext
id nasplib_isofts_kiev_ua-123456789-146841
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 1815-0659
language English
last_indexed 2025-11-26T22:57:45Z
publishDate 2014
publisher Інститут математики НАН України
record_format dspace
spelling Caudrelier, V.
Crampé, N.
Zhang, Q.C.
2019-02-11T17:05:17Z
2019-02-11T17:05:17Z
2014
Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency / V. Caudrelier, N. Crampé, Q.C. Zhang // Symmetry, Integrability and Geometry: Methods and Applications. — 2014. — Т. 10. — Бібліогр.: 30 назв. — англ.
1815-0659
2010 Mathematics Subject Classification: 05C10; 37K10; 39A12; 57M15
DOI:10.3842/SIGMA.2014.014
https://nasplib.isofts.kiev.ua/handle/123456789/146841
We propose the notion of integrable boundary in the context of discrete integrable systems on quad-graphs. The equation characterizing the boundary must satisfy a compatibility equation with the one characterizing the bulk that we called the three-dimensional (3D) boundary consistency. In comparison to the usual 3D consistency condition which is linked to a cube, our 3D boundary consistency condition lives on a half of a rhombic dodecahedron. The We provide a list of integrable boundaries associated to each quad-graph equation of the classification obtained by Adler, Bobenko and Suris. Then, the use of the term ''integrable boundary'' is justified by the facts that there are Bäcklund transformations and a zero curvature representation for systems with boundary satisfying our condition. We discuss the three-leg form of boundary equations, obtain associated discrete Toda-type models with boundary and recover previous results as particular cases. Finally, the connection between the 3D boundary consistency and the set-theoretical reflection equation is established.
The final details of this paper were completed while two of the authors (V.C. and Q.C.Z) were
 at the “Discrete Integrable Systems” conference held at the Newton Institute for Mathematical
 Sciences. We wish to thank C. Viallet for pointing out useful references. We also thank
 M. Nieszporski and P. Kassotakis for useful discussions and the provision of unpublished material
 on their work on the connection between Yang–Baxter maps and quad-graph equations, some
 of which is related to our results shown in Table 3. Last, but not least, we express our sincere
 gratitude to the referees whose excellent comments and criticisms helped improve this paper
 tremendously.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
Article
published earlier
spellingShingle Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
Caudrelier, V.
Crampé, N.
Zhang, Q.C.
title Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
title_full Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
title_fullStr Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
title_full_unstemmed Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
title_short Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
title_sort integrable boundary for quad-graph systems: three-dimensional boundary consistency
url https://nasplib.isofts.kiev.ua/handle/123456789/146841
work_keys_str_mv AT caudrelierv integrableboundaryforquadgraphsystemsthreedimensionalboundaryconsistency
AT crampen integrableboundaryforquadgraphsystemsthreedimensionalboundaryconsistency
AT zhangqc integrableboundaryforquadgraphsystemsthreedimensionalboundaryconsistency