Kontsevich–Zorich cocycle
E904569
The Kontsevich–Zorich cocycle is a dynamical system arising from the action of the Teichmüller geodesic flow on the Hodge bundle over moduli spaces of Riemann surfaces, central to understanding deviations of ergodic averages and Lyapunov exponents in flat surface dynamics.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kontsevich–Zorich cocycle canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11098753 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Kontsevich–Zorich cocycle Context triple: [Teichmüller curve, relatedTo, Kontsevich–Zorich cocycle]
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A.
Teichmüller curve
A Teichmüller curve is a complex geodesic in the moduli space of Riemann surfaces that arises from flat surface structures and has rich connections to dynamics, geometry, and number theory.
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B.
Thurston’s classification of surface diffeomorphisms
Thurston’s classification of surface diffeomorphisms is a foundational theorem in low-dimensional topology that categorizes self-maps of surfaces into periodic, reducible, or pseudo-Anosov types, profoundly influencing the study of 3-manifolds and dynamical systems.
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C.
Milnor–Thurston kneading theory
Milnor–Thurston kneading theory is a mathematical framework in one-dimensional dynamical systems that encodes the combinatorial behavior of interval maps to study their dynamics and entropy.
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D.
Milnor–Wood inequality
The Milnor–Wood inequality is a result in differential geometry and topology that bounds the Euler class of flat circle bundles over surfaces, with important implications for foliations and group actions on the circle.
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E.
Sullivan dictionary relating Kleinian groups and complex dynamics
The Sullivan dictionary relating Kleinian groups and complex dynamics is a conceptual framework that draws deep analogies between the theory of Kleinian groups and the iteration of rational maps, unifying key ideas in geometric group theory and complex dynamical systems.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Kontsevich–Zorich cocycle Target entity description: The Kontsevich–Zorich cocycle is a dynamical system arising from the action of the Teichmüller geodesic flow on the Hodge bundle over moduli spaces of Riemann surfaces, central to understanding deviations of ergodic averages and Lyapunov exponents in flat surface dynamics.
-
A.
Teichmüller curve
A Teichmüller curve is a complex geodesic in the moduli space of Riemann surfaces that arises from flat surface structures and has rich connections to dynamics, geometry, and number theory.
-
B.
Thurston’s classification of surface diffeomorphisms
Thurston’s classification of surface diffeomorphisms is a foundational theorem in low-dimensional topology that categorizes self-maps of surfaces into periodic, reducible, or pseudo-Anosov types, profoundly influencing the study of 3-manifolds and dynamical systems.
-
C.
Milnor–Thurston kneading theory
Milnor–Thurston kneading theory is a mathematical framework in one-dimensional dynamical systems that encodes the combinatorial behavior of interval maps to study their dynamics and entropy.
-
D.
Milnor–Wood inequality
The Milnor–Wood inequality is a result in differential geometry and topology that bounds the Euler class of flat circle bundles over surfaces, with important implications for foliations and group actions on the circle.
-
E.
Sullivan dictionary relating Kleinian groups and complex dynamics
The Sullivan dictionary relating Kleinian groups and complex dynamics is a conceptual framework that draws deep analogies between the theory of Kleinian groups and the iteration of rational maps, unifying key ideas in geometric group theory and complex dynamical systems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
cocycle
ⓘ
dynamical system ⓘ mathematical object ⓘ |
| actsOn |
Hodge bundle over Teichmüller space
ⓘ
cohomology of Riemann surfaces ⓘ first homology group ⓘ |
| appearsIn |
study of Abelian differentials on Riemann surfaces
ⓘ
study of billiards in rational polygons ⓘ study of measured foliations on surfaces ⓘ |
| arisesFrom | Teichmüller geodesic flow NERFINISHED ⓘ |
| associatedWith |
Gauss–Manin connection
NERFINISHED
ⓘ
Hodge theory NERFINISHED ⓘ SL(2,R)-action on moduli spaces ⓘ Teichmüller flow NERFINISHED ⓘ differential geometry ⓘ dynamical systems ⓘ ergodic theory ⓘ |
| definedAs | cocycle given by parallel transport of cohomology along Teichmüller geodesic flow ⓘ |
| definedOn | Hodge bundle NERFINISHED ⓘ |
| definedOver |
moduli space of Abelian differentials
ⓘ
moduli space of Riemann surfaces ⓘ moduli space of quadratic differentials NERFINISHED ⓘ |
| hasComponent |
central Oseledets subspace
ⓘ
stable Oseledets subspace ⓘ unstable Oseledets subspace ⓘ |
| hasInvariant |
Kontsevich–Zorich Lyapunov exponents
NERFINISHED
ⓘ
Lyapunov spectrum ⓘ |
| hasProperty |
linear
ⓘ
measurable ⓘ symplectic ⓘ |
| introducedBy |
Anton Zorich
NERFINISHED
ⓘ
Maxim Kontsevich NERFINISHED ⓘ |
| namedAfter |
Anton Zorich
NERFINISHED
ⓘ
Maxim Kontsevich NERFINISHED ⓘ |
| relatedTo |
Eskin–Kontsevich–Zorich formula for Lyapunov exponents
ⓘ
Forni subspace NERFINISHED ⓘ Forni’s deviation theorem NERFINISHED ⓘ Oseledets multiplicative ergodic theorem NERFINISHED ⓘ flat surface dynamics ⓘ interval exchange transformations ⓘ translation surfaces ⓘ |
| studiedIn |
Teichmüller dynamics
NERFINISHED
ⓘ
flat geometry ⓘ moduli of curves ⓘ |
| usedFor |
study of Lyapunov exponents
ⓘ
study of deviation of Birkhoff sums ⓘ study of deviation of ergodic integrals ⓘ study of deviations of ergodic averages ⓘ |
How these facts were elicited
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Subject: Kontsevich–Zorich cocycle Description of subject: The Kontsevich–Zorich cocycle is a dynamical system arising from the action of the Teichmüller geodesic flow on the Hodge bundle over moduli spaces of Riemann surfaces, central to understanding deviations of ergodic averages and Lyapunov exponents in flat surface dynamics.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.