actions
Định nghĩa
Bộ máy hoạt động, cơ cấu hoạt động.
Ví dụ :
Phép toán, tác động, ảnh xạ.
A mapping from a pairing of mathematical objects to one of them, respecting their individual structures. The pairing is typically a Cartesian product or a tensor product. The object that is not part of the output is said to act on the other object. In any given context, action is used as an abbreviation for a more fully named notion, like group action or left group action.