Nisnevich topology

E884926

The Nisnevich topology is a Grothendieck topology on schemes tailored to capture étale-local algebraic information while ensuring strong local lifting properties over points.

All labels observed (5)

Label Occurrences
Nisnevich cd-structure 1
Nisnevich cohomology 1
Nisnevich descent 1

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf Grothendieck topology ⓘ
topology on schemes ⓘ
appliesTo general schemes ⓘ
schemes of finite type over a base ⓘ
arisesFrom Nisnevich cd-structure ⓘ
linked to: Nisnevich topology
associatedWith distinguished Nisnevich squares ⓘ
excision squares in K-theory ⓘ
baseChangeBehavior stable under base change of schemes ⓘ
characterizedBy distinguished squares ⓘ
pointwise lifting property for étale morphisms ⓘ
coarserThan étale topology ⓘ
comparedWith Zariski topology ⓘ
étale topology ⓘ
compatibleWith étale-local algebraic information ⓘ
coveringFamilyCondition for every point of the base there exists a point in some cover with isomorphic residue field and mapping to it ⓘ
coversGivenBy families of étale morphisms satisfying residue field isomorphism conditions ⓘ
definedOn category of schemes ⓘ
category of schemes over a base scheme ⓘ
ensures existence of sections after refinement around points ⓘ
strong local lifting properties over points ⓘ
generalizes Zariski open covers via étale refinements ⓘ
hasProperty enough points ⓘ
finer than Zariski but not as fine as étale ⓘ
subcanonical ⓘ
introducedBy Yevsey Nisnevich NERFINISHED ⓘ
morphismCondition covers consist of jointly surjective families of étale morphisms with residue field lifting ⓘ
motivation to capture étale-local behavior while improving pointwise lifting properties ⓘ
refines Zariski topology ⓘ
relatedConcept cd-structure ⓘ
supports descent for algebraic K-theory ⓘ
excision in algebraic K-theory ⓘ
typicalCover étale morphism admitting sections over all residue fields of the base ⓘ
usedFor comparison of algebraic and topological K-theory in certain settings ⓘ
construction of homotopy invariant sheaves ⓘ
localization arguments in motivic homotopy ⓘ
usedIn A¹-homotopy theory ⓘ
Morel–Voevodsky A¹-homotopy theory ⓘ
Voevodsky’s construction of triangulated categories of motives ⓘ
algebraic K-theory ⓘ
algebraic geometry ⓘ
descent theory ⓘ
motivic homotopy theory ⓘ
usedToDefine Nisnevich cohomology ⓘ
linked to: Nisnevich topology

Nisnevich descent ⓘ
linked to: Nisnevich topology

Nisnevich sheaves ⓘ
linked to: Nisnevich topology

Nisnevich-local model structures on motivic spectra ⓘ
Nisnevich-local model structures on simplicial presheaves ⓘ

How these facts were elicited

Referenced by (5)

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

Grothendieck topology → generalizes → Nisnevich topology ⓘ
Nisnevich topology → usedToDefine → Nisnevich sheaves ⓘ
linked to: Nisnevich topology
Nisnevich topology → usedToDefine → Nisnevich cohomology ⓘ
linked to: Nisnevich topology
Nisnevich topology → usedToDefine → Nisnevich descent ⓘ
linked to: Nisnevich topology
Nisnevich topology → arisesFrom → Nisnevich cd-structure ⓘ
linked to: Nisnevich topology