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Stable Strata of Geodesics in Outer Space
Group Theory · Submitted 2 Jun 2017
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We show that the analogous Outer space "principal" periodic geodesics share certain stability properties with the principal stratum geodesics of Teichm\"uller space.
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The abstract, sentence by sentence
In this paper we propose an Outer space analogue for the principal stratum of the unit tangent bundle to the Teichm\"uller space $\mathcal{T}(S)$ of a closed hyperbolic surface $S$. More specifically, we focus on properties of the geodesics in Teichm\"uller space determined by the principal stratum. We show that the analogous Outer space "principal" periodic geodesics share certain stability properties with the principal stratum geodesics of Teichm\"uller space. We also show that the stratification of periodic geodesics in Outer space exhibits some new pathological phenomena not present in the Teichm\"uller space context.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | In this paper we propose an Outer space analogue for the principal stratum of the unit tangent bundle to the Teichm\"uller space $\mathcal{T}(S)$ of a closed hyperbolic surface $S$. | contribution 0.99 | 0.81 | 0.08 | asserted 0.80 |
| s1 | More specifically, we focus on properties of the geodesics in Teichm\"uller space determined by the principal stratum. | contribution 0.78 | 0.38 | 0.05 | asserted 0.86 |
| s2 | We show that the analogous Outer space "principal" periodic geodesics share certain stability properties with the principal stratum geodesics of Teichm\"uller space. | result 1.00 | 0.95 | 0.57 | asserted 1.00 |
| s3 | We also show that the stratification of periodic geodesics in Outer space exhibits some new pathological phenomena not present in the Teichm\"uller space context. | result 1.00 | 0.94 | 0.18 | asserted 0.98 |
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Original abstract
In this paper we propose an Outer space analogue for the principal stratum of the unit tangent bundle to the Teichm\"uller space $\mathcal{T}(S)$ of a closed hyperbolic surface $S$. More specifically, we focus on properties of the geodesics in Teichm\"uller space determined by the principal stratum. We show that the analogous Outer space "principal" periodic geodesics share certain stability properties with the principal stratum geodesics of Teichm\"uller space. We also show that the stratification of periodic geodesics in Outer space exhibits some new pathological phenomena not present in the Teichm\"uller space context.
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Cites as support 2 papers
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The four topologies on $$ coincide [ref] .
The Metric Completion of Outer Space · The space of fold lines · 0.98
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Since there are no periodic Nielsen paths (again by [ref] ), this indicates that each component of the ideal Whitehead graph is a complete graph.
Index realization for automorphisms of free groups · Examples · 0.97
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