noun
phase space
Physics term: the space of all possible states of a system, where each state is represented by a point.
古典力学では、粒子の位置と運動量で位相空間が定義される。
In classical mechanics, phase space is defined by the position and momentum of particles.
noun
topological space
Mathematics term: a set equipped with a topology, allowing the definition of continuity and convergence.
位相空間の定義には、開集合の概念が不可欠です。
The concept of open sets is essential for the definition of a topological space.