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Formal Integrability Criteria for Nonlinear Partial Difference Equations 期刊论文
ACTA APPLICANDAE MATHEMATICAE, 2009, 卷号: 108, 期号: 2, 页码: 279-297
作者:  Xie, Zheng;  Li, Hongbo
收藏  |  浏览/下载:101/0  |  提交时间:2018/07/30
Nonlinear difference equations  Spencer cohomology  Formal differential geometry  Discrete differential geometry  
Exterior difference systems and invariance properties of discrete mechanics 期刊论文
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2008, 卷号: 41, 期号: 25, 页码: 14
作者:  Xie, Zheng;  Xie, Duanqiang;  Li, Hongbo
收藏  |  浏览/下载:94/0  |  提交时间:2018/07/30
Applications of exterior difference systems to variations in discrete mechanics 期刊论文
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2008, 卷号: 41, 期号: 8, 页码: 12
作者:  Xie, Zheng;  Li, Hongbo
收藏  |  浏览/下载:66/0  |  提交时间:2018/07/30
Exterior difference system on hypercubic lattice 期刊论文
ACTA APPLICANDAE MATHEMATICAE, 2007, 卷号: 99, 期号: 1, 页码: 97-116
作者:  Xie, Zheng;  Li, Hongbo
收藏  |  浏览/下载:87/0  |  提交时间:2018/07/30
exterior difference system  discrete Frobenius theorem  discrete Cartan-Kahler theorem  discrete retraction theorem  noncommutative calculus