Jones polynomial

E169187

The Jones polynomial is a powerful knot invariant in topology that assigns to each knot or link a Laurent polynomial, enabling the distinction of many knots that are indistinguishable by classical invariants.

All labels observed (1)

Label Occurrences
Jones polynomial canonical 5

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf Laurent polynomial–valued invariant
knot invariant
link invariant
arisesFrom representations of braid groups
subfactor theory in von Neumann algebras
canBeComputedFrom braid representation of a link
canBeComputedUsing Kauffman polynomial
surface form: Kauffman bracket
categorifiedBy Khovanov homology
codomain Laurent polynomials in a variable q^{1/2}
Laurent polynomials in a variable t^{1/2}
connectedTo Chern–Simons theory
surface form: Chern–Simons topological quantum field theory

Witten–Reshetikhin–Turaev invariant
surface form: Witten–Reshetikhin–Turaev invariants

quantum groups
definedBy skein relation at a crossing
dependsOn choice of orientation of link components
distinguishes many non-equivalent knots
domain oriented links in 3-dimensional space
field knot theory
low-dimensional topology
generalizationOf Alexander polynomial in some contexts
hasCoefficientRing integers
hasExponentType half-integers in the variable exponent
inspired categorification leading to Khovanov homology
development of quantum invariants of 3-manifolds
introducedIn paper on representations of braid groups
invariantUnder Reidemeister moves
ambient isotopy of links
namedAfter Vaughan Jones
normalizationCondition value on the unknot equals 1
openProblem whether the Jones polynomial detects the unknot
property different knots can share the same Jones polynomial
not a complete knot invariant
refines classical knot invariants
relatedConjecture Volume conjecture
relatedTo HOMFLY-PT polynomial
surface form: HOMFLY polynomial

HOMFLY-PT polynomial
Kauffman polynomial
satisfies behavior under connected sum of knots
multiplicativity under disjoint union up to normalization
skein relation
usedIn distinguishing mirror-image knots in some cases
studying chirality of knots
topological quantum computation
usedToDistinguish trefoil knot from the unknot
valueOnUnknot 1
variableConvention q
t
yearIntroduced 1984

How these facts were elicited

Referenced by (5)

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

Conway polynomial relatedInvariant Jones polynomial
HOMFLY-PT polynomial generalizes Jones polynomial
Chern–Simons theory relatedTo Jones polynomial