Floer theory

E911359

Floer theory is a branch of symplectic geometry and low-dimensional topology that extends Morse-theoretic ideas to infinite-dimensional spaces, providing powerful tools for studying periodic orbits, Lagrangian intersections, and invariants such as Floer homology.

All labels observed (12)

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Statements (51)

Predicate Object
instanceOf branch of low-dimensional topology
branch of symplectic geometry
mathematical theory
appliesTo Hamiltonian diffeomorphisms
pairs of Lagrangian submanifolds
symplectic manifolds
basedOn Morse theory
linked to: Morse Theory
coreConcept action functional on loop space
continuation maps
moduli spaces of solutions to Floer equations
spectral invariants
transversality and perturbations
defines Floer chain complex
linked to: Floer theory

Floer differential
linked to: Floer theory

Floer homology groups
linked to: Floer theory
developedBy Andreas Floer
extends Morse theory to infinite-dimensional spaces
fieldOfStudy Hamiltonian dynamics
Morse theory
low-dimensional topology
symplectic geometry
hasVariant Hamiltonian Floer homology
Lagrangian Floer homology
linked to: Floer theory

instanton Floer homology
monopole Floer homology
symplectic Floer homology
historicalPeriod late 20th century
inspired Heegaard Floer homology
linked to: Floer theory

embedded contact homology
symplectic field theory
mainTool Floer homology
linked to: Floer theory
namedAfter Andreas Floer
notableResult proofs of cases of the Arnold conjecture for symplectic fixed points
relatedTo Gromov–Witten theory
Heegaard Floer homology
linked to: Floer theory

Seiberg–Witten theory
instanton Floer homology
monopole Floer homology
studies Lagrangian intersections
periodic orbits of Hamiltonian systems
pseudo-holomorphic curves
symplectic invariants
usedFor Arnold conjecture
Weinstein conjecture
classification of symplectic manifolds
construction of invariants of 3-manifolds
construction of invariants of 4-manifolds
uses Fredholm theory
linked to: Fredholm operator

compactness results for moduli spaces
elliptic partial differential equations
gradient flow lines of an action functional

How these facts were elicited

Referenced by (25)

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

Morse theory hasVariant Floer theory
subject linked to: Morse Theory
Morse theory inspired Floer homology
subject linked to: Morse Theory
linked to: Floer theory
Donaldson invariants relatedTo Floer homology
linked to: Floer theory
McDuff–Salamon theory of J-holomorphic curves providesToolsFor Gromov–Witten theory
linked to: Floer theory
Dietmar Salamon hasResearchInterest Floer homology
linked to: Floer theory
Introduction to Symplectic Topology topic Floer homology
linked to: Floer theory
Arnold conjecture topic Floer theory
Arnold conjecture topic Hamiltonian Floer homology
linked to: Floer theory
Arnold conjecture motivatedDevelopmentOf Floer homology
linked to: Floer theory
Arnold conjecture isCentralTo Hamiltonian Floer theory
linked to: Floer theory
Khovanov homology relatedTo Heegaard Floer homology
linked to: Floer theory
Donaldson theory relatedTo Floer homology
linked to: Floer theory
Donaldson theory relatedTo instanton Floer homology
linked to: Floer theory
Maslov index usedIn Floer theory
Maslov index usedIn Lagrangian intersection theory
linked to: Floer theory
Seiberg–Witten invariants relatedTo Floer homology
linked to: Floer theory
Seiberg–Witten invariants relatedTo Heegaard Floer homology
linked to: Floer theory
Floer theory mainTool Floer homology
linked to: Floer theory
Floer theory defines Floer chain complex
linked to: Floer theory
Floer theory defines Floer differential
linked to: Floer theory
Floer theory defines Floer homology groups
linked to: Floer theory
Floer theory relatedTo Heegaard Floer homology
linked to: Floer theory
Floer theory inspired Heegaard Floer homology
linked to: Floer theory
Floer theory hasVariant Lagrangian Floer homology
linked to: Floer theory