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Integrability of a dynamical system is a concept which is widely discussed for a long time in physics, mathematics and somewhat differently in different contexts. It can also be considered as a mathematical property that can be successfully used to obtain more predictive power and quantitative information to understand the system globally. Integrable models form a beautiful class of physical models in the sense that they are exactly solvable. There are various circumstances in which interest in integrability can arise. In past non-linear ordinary and partially differential equations are...

Buffalo is a multi-purpose livestock species in many countries particularly in south Asia and is source of employment to the farmers. India has largest population of buffalo, but still Indian buffaloes are poor producers. Season plays an important role in reproductive efficiency of this animal. Buffaloes are polyestrus, yet they exhibit a distinct seasonal variation in display of estrus and calving rate. Breeding efficiency is highest in winters and lowest in summer. Thus temperature has a potent effect on the ovarian function and thus fertility in buffaloes. This book gives an idea about the...