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The Gordon-Litherland pairing and its many applications
Geometric Topology · Submitted 11 Mar 2025
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Gordon and Litherland's paper $\textit{On the Signature of a link}$ introduced a bilinear form that simultaneously unifies both the quadratic forms of Trotter and Goeritz.
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The abstract, sentence by sentence
Gordon and Litherland's paper $\textit{On the Signature of a link}$ introduced a bilinear form that simultaneously unifies both the quadratic forms of Trotter and Goeritz. This remarkable pairing of combinatorics and topology has had widespread application in low-dimensional topology. In this expository note, we give a picture proof (via Kirby diagrams) of their main result and discuss the numerous ways their theorem has been put to good use.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Gordon and Litherland's paper $\textit{On the Signature of a link}$ introduced a bilinear form that simultaneously unifies both the quadratic forms of Trotter and Goeritz. | background 0.98 | 0.04 | 0.29 | asserted 1.00 |
| s1 | This remarkable pairing of combinatorics and topology has had widespread application in low-dimensional topology. | background 0.86 | 0.05 | 0.09 | asserted 1.00 |
| s2 | In this expository note, we give a picture proof (via Kirby diagrams) of their main result and discuss the numerous ways their theorem has been put to good use. | contribution 0.99 | 0.90 | 0.24 | asserted 0.99 |
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Original abstract
Gordon and Litherland's paper $\textit{On the Signature of a link}$ introduced a bilinear form that simultaneously unifies both the quadratic forms of Trotter and Goeritz. This remarkable pairing of combinatorics and topology has had widespread application in low-dimensional topology. In this expository note, we give a picture proof (via Kirby diagrams) of their main result and discuss the numerous ways their theorem has been put to good use.
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