拓扑学和数学的相关领域中，积空间是指一族拓扑空间的笛卡儿积，并配备了一个称为积拓扑的自然的拓扑结构。
内积空间 [数] inner product space ; Internal Product Space ; Accumulate the space inside
直积空间 [数] direct product space
乘积空间 [数] product space ; Product domains
约化积空间 [数] reduced produet space
最小体积空间 co-volume
弱内积空间 weak inner product space
G-凸空间的乘积空间 product space of G-convex spaces
L-凸空间的乘积空间 The product space of L-convex spaces
It is proved that a Minkowski plane withπ/2-property, whose unit circle is Radon curve, is an inner product space.
证明了单位圆是Radon曲线且具有π/2性质的空间是内积空间。
参考来源 - 赋范线性空间中与正交性相关的若干问题·2,447,543篇论文数据，部分数据来源于NoteExpress
讨论了有限积空间上积映射的APOTP并证明无限积空间上移位映射具有APOTP。
We also discuss the APOTP of the product map on the finite product space and show that the shift map on infinite product space has the APOT p.
特别讨论了积空间中渐近非扩张映射的不动点问题，研究了某些非扩张映射迭代序列在特定条件下的收敛性问题。
A convergence of Ishikawa iteration sequence with errors is investigated in this paper for asymptotically nonexpansive mapping in uniformly convex Banach Spaces.
引入了卡氏和张量混合积空间上的对称化算子和相应的分块矩阵上的混合矩阵函数，给出了关于它们的若干关系式。
Symmetrizing operators on mixed cartesian and tensor product spaces and corresponding mixed matrix functions on partitioned matrices are introduced. Some relation formulae on them are given.
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