研究了凸集上H类函数的延拓问题,主要有以下结果:(1)定义在Hilbert空间凸集上的有界H(μ)类函数可延拓为整个空间上有定义的有界H(μ)函数;(2)定义在R^n中有界闭集上的函数连续的充分必要条件为其在该有界闭集上满足Lipschitz条件,这样的函数可延拓在R^n上满足Lipschitz条件的有界函数.
An extension of H-class functions was studied ,and the results were as following: (1)A bounded H(μ)-class function defined on a convex subset of a Hilbert space was extended into a bounded H(μ)-class function on the whole space; (2) a function defined on a bounded,closed subset of R^n was continous if and only if it satisfies Lipschitz condition,and such a function was extended into a bounded function satisfying Lipschitz condition in R^n.