(Atiyah 1988) It contains some new topological invariants and the new ideas, which are Casson invariant, Donaldson invariant, Gromov's theory, Floer homology and Jones-Witten's theory.
There exists also an unstable version of the Hopf invariant h V( F){\displaystyle h_{V}(F)}, for which one must keep track of the vector space V{\displaystyle V}.
Let's define the following important AVL Tree invariant(property that will never change): A vertex v is said to be height-balanced if|v. left. height- v. right. height|≤ 1.
In algebraic topology, the Euler characteristic is a topological invariant(in fact, homotopy invariant) defined for a broad class of topological spaces.
我们对不变量做了大量的尝试。
We experimented a lot with invariants.
合同包括不变量,先决条件和后置条件。
The contract includes invariants, preconditions, and post conditions.
因此它已经不变量比其他结构。
And thus it has come not to be more variable than any other structure.
因此它已经不变量比其他结构。
And thus it comes to be no more variable than any other structure.
它还使一个重要的字典不变量无效:d.
It also invalidates an important invariant of dictionaries: every value in d.
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