在一个驱动程序中，mmap函数通过remap _ pfn_range内核函数实现，它提供设备内存到用户地址空间的线性映射。
Within a driver, the mmap function is implemented through the remap_pfn_range kernel function, which provides a linear mapping of device memory into a user's address space.
在教学中，经常遇到如何构造两个有限维线性空间的同构映射的问题。
We always meet problems that how to construct the isomorphic mapping of two finite dimension linear Spaces in teaching.
在线性拓扑空间中，定义了-广义锥凸集值映射的概念。
The concept of -generalized convex set-valued map is defined in linear topological space.
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