In differential topology, a branch of mathematics, the Whitney conditions are conditions on a pair of submanifolds of a manifold introduced by Hassler Whitney in 1965. A stratification of a topological space is a finite filtration by closed subsets Fi, such that the difference between successive members Fi and Fi −1 of the filtration is either empty or a smooth submanifold of dimension i.
In differential topology, a branch of mathematics, the Whitney conditions are conditions on a pair of submanifolds of a manifold introduced by Hassler Whitney in 1965. A stratification of a topological space is a finite filtration by closed subsets Fi, such that the difference between successive members Fi and Fi −1 of the filtration is either empty or a smooth submanifold of dimension i.
Source: Wikipedia "Whitney conditions" · CC BY-SA 4.0
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