期刊
JOURNAL OF MATHEMATICAL PHYSICS
卷 44, 期 5, 页码 2234-2249出版社
AMER INST PHYSICS
DOI: 10.1063/1.1563041
关键词
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We introduce the Koenigs lattice, which is a new integrable reduction of the quadrilateral lattice (discrete conjugate net) and provides natural integrable discrete analog of the Koenigs net. We construct the Darboux-type transformation of the Koenigs lattice and we show permutability of superpositions of such transformations, thus proving integrability of the Koenigs lattice. We also investigate the geometry of the discrete Koenigs transformation. In particular we characterize the Koenigs transformation in terms of an involution determined by a congruence conjugate to the lattice. (C) 2003 American Institute of Physics.
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