Whitney stratification

E53942

Whitney stratification is a method in differential topology for decomposing singular spaces into smoothly compatible manifolds (strata) that fit together under specific regularity conditions, enabling rigorous analysis of singularities.

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AI-generated illustration of Whitney stratification

This AI-generated illustration was produced by black-forest-labs/FLUX.2-dev (1024x1024) from a prompt written by openai/gpt-oss-120b from the entity's label + description.

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Generate an image of Whitney stratification (Whitney stratification is a method in differential topology for decomposing singular spaces into smoothly compatible manifolds (strata) that fit together under specific regularity conditions, enabling rigorous analysis of singularities.)

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Statements (46)

Predicate Object
instanceOf mathematical concept ⓘ
stratification ⓘ
tool in differential topology ⓘ
appliesTo algebraic varieties ⓘ
analytic sets ⓘ
singular spaces ⓘ
subsets of smooth manifolds ⓘ
assumption each stratum is a connected smooth submanifold ⓘ
frontier condition: boundary of a stratum is a union of lower-dimensional strata ⓘ
condition Whitney condition A ⓘ
Whitney condition B ⓘ
dimensionProperty dimensions of strata strictly decrease along the frontier ⓘ
ensures compatibility of tangent spaces of strata ⓘ
controlled behavior of limits of tangent spaces ⓘ
good geometric fit between strata ⓘ
field algebraic geometry ⓘ
differential topology ⓘ
real analytic geometry ⓘ
singularity theory ⓘ
hasPart strata ⓘ
historicalNote introduced by Hassler Whitney in the 1960s ⓘ
namedAfter Hassler Whitney ⓘ
property compatible with many geometric and analytic constructions ⓘ
refinement of any given decomposition into smooth pieces can often be made Whitney-regular ⓘ
purpose to analyze singularities rigorously ⓘ
to decompose singular spaces into smooth manifolds ⓘ
regularityCondition Whitney conditions ⓘ
relatedConcept Thom–Mather stratification ⓘ
Whitney conditions ⓘ
o-minimal structure ⓘ
stratified space ⓘ
subanalytic set ⓘ
strataAre locally finite ⓘ
pairwise disjoint ⓘ
smooth manifolds ⓘ
strataUnion the whole space ⓘ
usedFor constructing stratified spaces ⓘ
defining stratified mappings ⓘ
intersection homology ⓘ
stratified Morse theory ⓘ
stratified transversality ⓘ
studying topological invariants of singular spaces ⓘ
usedIn equisingularity theory ⓘ
geometric measure theory ⓘ
microlocal analysis ⓘ
resolution of singularities ⓘ

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Referenced by (12)

Full triples — surface form annotated when it differs from this entity's canonical label.

Whitney embedding theorem → relatedTo → Whitney stratification ⓘ
Hassler Whitney → notableFor → Whitney stratification ⓘ
Hassler Whitney → hasConceptNamedAfter → Whitney stratification ⓘ
Whitney stratification → condition → Whitney condition A ⓘ
linked to: Whitney stratification
Whitney stratification → condition → Whitney condition B ⓘ
linked to: Whitney stratification
Whitney stratification → regularityCondition → Whitney conditions ⓘ
linked to: Whitney stratification
Whitney stratification → relatedConcept → Whitney conditions ⓘ
linked to: Whitney stratification
Hassler Whitney → notableFor → Whitney stratification ⓘ
subject linked to: Hassler
Thom–Mather stratification → generalizes → Whitney stratification ⓘ
Thom–Mather stratification → refines → Whitney stratification ⓘ
Thom–Mather stratification → relatedTo → Whitney conditions A and B ⓘ
linked to: Whitney stratification
Thom–Mather stratification → isStrongerThan → Whitney stratification ⓘ