摘要:
An initial value problem is then a differential equation (ordinary or partial, or even a system) which, besides of stating the relation among the derivatives, also, by giving the initial conditions, s... 阅读全文
摘要:
Let be a subset of , a point of , and be a function. We say that a function is a solution to the Cauchy (or initial value) problem (1) i... 阅读全文