propose
发表于 2025-3-28 16:06:04
W. Song,H. L. Yang,X. L. Sun,Y. S. Wang,Y. D. Wang,Z. H. Chenesents many examples and exercises to make it easily accessi.This book shows how Lie group and integrability techniques, originally developed for differential equations, have been adapted to the case of difference equations. Difference equations are playing an increasingly important role in the natu
躲债
发表于 2025-3-28 19:21:09
H. M. A. El-Komy,T. M. M. Moharram,M. S. A. Safwatesents many examples and exercises to make it easily accessi.This book shows how Lie group and integrability techniques, originally developed for differential equations, have been adapted to the case of difference equations. Difference equations are playing an increasingly important role in the natu
勉励
发表于 2025-3-29 01:28:38
Sikander Ali,Naima Hamid,Ghulam Rasul,Samina Mehnaz,Kauser A. Malik of a Lie group. Locally, there are the infinitesimal symmetries induced by differential operators, including not only those of first order but of higher order too. This three-week summer program considered the symmetries preserving various natural geometric structures. Often these structures are th
阴郁
发表于 2025-3-29 03:56:13
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TERRA
发表于 2025-3-29 11:09:22
of a Lie group. Locally, there are the infinitesimal symmetries induced by differential operators, including not only those of first order but of higher order too. This three-week summer program considered the symmetries preserving various natural geometric structures. Often these structures are th