Discrete Lagrangian Multiforms for ABS Equations II: Tetrahedron and Octahedron Equations

We present four types of discrete Lagrangian 2-form associated with the integrable quad equations of the ABS list. These include the triangle Lagrangian that has traditionally been used in the Lagrangian multiform description of ABS equations, the trident Lagrangian that was central to Part I of thi...

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Veröffentlicht in:Symmetry, Integrability and Geometry: Methods and Applications
Datum:2025
Hauptverfasser: Richardson, Jacob J., Vermeeren, Mats
Format: Artikel
Sprache:Englisch
Veröffentlicht: Інститут математики НАН України 2025
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/213517
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Discrete Lagrangian Multiforms for ABS Equations II: Tetrahedron and Octahedron Equations. Jacob J. Richardson and Mats Vermeeren. SIGMA 21 (2025), 059, 27 pages

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