With the topological degree, the fixed theorems for upper semicontinuous set-valued1- set-contractive mapping is studied. 研究了上半连续集值1-集压缩映射的不动点定理。
The greatest variation takes place in the volume contractive rate of the heartwood, collapse factor and collapse depth of the sapwood. 心材的体积收缩率、边交界材的皱缩因子和皱缩深度变化最大。
This paper studies a contractive mapping, obtains the existence and uniqueness of its fixed point. The result generalizes and extends the result of[1]. 该文研究了一类压缩型映射,得到其不动点的存在唯一性定理。所得结果推广和发展了文[]相应的结果。
Contractive \Con*tract"ive\, a. Tending to contract; having the property or power or power of contracting.