Journals / ACADEMIC PLATFORM-JOURNAL OF ENGINEERING AND SCIENCE / 2019 / Cilt: 7 - Sayı: 2

Dynnikov Coordinates and 𝝅𝟏–Train Tracks

Dynnikov Koordinatları ve 𝝅𝟏–Train Track Grafikleri

Pages
316–323
Publication Date
2022-10-11
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this paper we introduce transition formulae between Dynnikov coordinates and the so–called 𝜋1–train track coordinates of a given multicurve on 𝐷𝑛.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:A well known way to coordinatize multicurves on a given surface is to use train tracks.
📊
Key Findings & Data:In the case where the surface is the 𝑛– punctured disk 𝐷𝑛 an alternative and efficient way to coordinatize multicurves is achieved by the Dynnikov coordinate system which gives an explicit bijection between the set of multicurves on 𝐷𝑛 and ℤ 2𝑛−4 {0}.
💡
Conclusion & Impact:In this paper we introduce transition formulae between Dynnikov coordinates and the so–called 𝜋1–train track coordinates of a given multicurve on 𝐷𝑛.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

A well known way to coordinatize multicurves on a given surface is to use train tracks. In the case where the surface is the 𝑛– punctured disk 𝐷𝑛 an alternative and efficient way to coordinatize multicurves is achieved by the Dynnikov coordinate system which gives an explicit bijection between the set of multicurves on 𝐷𝑛 and ℤ 2𝑛−4 {0}. In this paper we introduce transition formulae between Dynnikov coordinates and the so–called 𝜋1–train track coordinates of a given multicurve on 𝐷𝑛.

Özet

Verilen bir yüzeyde tanımlı çoklu eğrileri koordinatlandırmanın alışılmış bir yolu train track grafiklerini kullanmaktır. Yüzeyin sonlu noktası çıkarılmış 𝐷𝑛 diski olması durumunda ise çoklu eğrilerin kümesi ile ℤ 2𝑛−4 {0} arasında birebir ve örten bir dönüşüm veren Dynnikov koordinat sistemi çoklu eğrileri koordinatlandırmak için alternatif ve etkili bir yol sunar. Bu çalışmada, 𝐷𝑛’ de verilen bir çoklu eğrinin belirli tipten bir train track grafiği olan 𝜋1–train track grafiği koordinatlarını Dynnikov koordinatlarına bağlayan geçiş formülleri sunulmuştur.

🔖

Cite This Article

Yurttaş, S. Ö., Güngörür, U. (2022). Dynnikov Coordinates and 𝝅𝟏–Train Tracks. ACADEMIC PLATFORM-JOURNAL OF ENGINEERING AND SCIENCE, Cilt: 7 - Sayı: 2, 316–323. https://ajindex.com/articles/427303

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (19)

  1. Artin. E, “Theory of braids”, Ann. of Math., vol 48, no 2, pp. 101–126, 1947
  2. Bestvina. M and Handel. M, “Train-tracks for surface homeomorphisms”, Topology, vol 34, no 1, pp. 109–140, 1995
  3. Dehornoy. P, “Efficient solutions to the braid isotopy problem”, Discrete Appl. Math., vol 156, no 16, pp. 3091– 3112, 2008
  4. Dehornoy. P, Dynnikov, I, Rolfsen, D and Wiest, “Ordering braids”, Mathematical Surveys and Monographs, American Mathematical Society, Providence, RI, 2008
  5. Dynnikov. I, “On a Yang-Baxter mapping and the Dehornoy ordering” Uspekhi Mat. Nauk, vol 57, no 3, pp. 151–152, 2002
  6. Dynnikov. I. and Wiest. B, “On the complexity of braids”, J. Eur. Math. Soc. (JEMS), vol 9, no 4, pp. 801– 840, 2007
  7. Fathi. A, Laudenbach. F and Poenaru. V, “Travaux de Thurston sur les surfaces”, Astérisque. Société Mathématique de France, Paris, Séminaire Orsay, 1979
  8. Finn. M.D and Thiffeault. J.L. “Topological entropy of braids on the torus”, SIAM J. Appl. Dyn. Syst., vol 6, no 1, pp. 79–98. 2007
  9. Gover. P, Ross, S.D. Stremler and M.A. Kumar. P, “Topological chaos, braiding and bifurcation of almost cyclic sets”, Chaos, vol 22 no 4, pp. 15-16, 2012
  10. Hall. T and Yurttaş. S.Ö, “On the topological entropy of families of braids”, Topology Appl., vol 156, no 8, pp. 1554–1564, 2009
  11. Hamidi Tehrani. Hessam and Chen. Zong-He, “Surface diffeomorphisms via train-tracks”, Topology Appl., vol 73, no 2, pp. 141–167, 1996
  12. Menzel C. Parker and Menzel. Christof, “PseudoAnosov diffeomorphisms of the twice punctured torus”, Recent Advances in Group Theory and Low-Dimensional Topology, vol 27, pp. 141–154, 2003
  13. Moussafir, J, “On computing the entropy of braids”, Funct. Anal. Other Math., vol 1, no 1, pp. 37- 46, 2006
  14. Penner R. C and Harer. J. L, Combinatorics of train tracks, Princeton, NJ: Princeton University Press, 1992
  15. Thurston. W, “On the geometry and dynamics of diffeomorphisms of surfaces”, Bull. Amer. Math. Soc. (N.S.), vol 19, no 2, pp. 417–431, 1988
  16. Yurttaş. S.Ö, “Geometric intersection of curves on punctured disks”. Journal of the Mathematical Society of Japan, vol 65, no 4, pp. 1554–1564, 2013
  17. Yurttaş. S.Ö, “Dynnikov and train track transition matrices of pseudo-Anosov braids”, Discrete Contin. Dyn. Syst., vol 36, no 1, pp. 541–570, 2016
  18. Yurttaş. S.Ö. and Hall. T, “Counting components of an integral lamination”, Manuscripta Math., vol 153, no 1, pp. 263–278, 2017
  19. Yurttaş S.Ö. and Hall, T