Lagrangian multiforms and multidimensional consistency
Lagrangian multiforms and multidimensional consistency
复制标题
拉格朗日多形式和多维一致性
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
F. Nijhoff
中科院分区:
文献类型:
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作者:
S. Lobb;F. Nijhoff
We show that well-chosen Lagrangians for a class of two-dimensional integrable lattice equations obey a closure relation when embedded in a higher dimensional lattice. On the basis of this property we formulate a Lagrangian description for such systems in terms of Lagrangian multiforms. We discuss the connection of this formalism with the notion of multidimensional consistency, and the role of the lattice from the point of view of the relevant variational principle.