Abstract
A method for exhibiting the equation of an algebraic curve for a large class of dessins on an orientable closed surface is developed, and the action of the absolute Galois group is realized as a modification of the associated cell structures. An application to quadratic differentials is discussed. A Galois invariant measure on ℂℙ(1) is introduced. Towers of (flat) refinements of dessins are introduced that relate the inverse system structure of the absolute Galois group to geometric/combinatorial structures on surfaces.
Similar content being viewed by others
References
E. Arbarello and M. Cornalba, “Jenkins–Strebel differentials,” Rend. Lincei Mat. Appl., 21, 115–157 (2010).
I. V. Artamkin, Yu. A. Levitskaya, and G. B. Shabat, “Examples of families of Strebel differentials on hyperelliptic curves,” Funct. Anal. Appl., 43, No. 2, 140–142 (2009).
X. Buff, P. Lochak, et al., Moduli Spaces of Curves, Mapping Class Groups and Field Theory, Amer. Math. Soc. (2003).
P. Dunin-Barkowski, A. Popolitovy, G. Shabat, and A. Sleptsov, On the Homology of Certain Smooth Covers of Moduli Spaces of Algebraic Curves, arXiv:1006.4322v2 (2010).
F. Gardiner and N. Lakic, Quasiconformal Teichm¨uller Theory, Amer. Math. Soc. (2000).
E. Girondo and G. González-Diez, “A note on the action of the absolute Galois group on dessins,” Bull. Lond. Math. Soc., 39, No. 5, 721–723 (2007).
Y. Ihara, “Braids, Galois groups and some arithmetic functions,” in: Proc. ICM-90, Springer (1990), pp. 99–120.
P. Lochak, http://www.math.jussieu.fr/~lochak.
G. Malle and B. H. Matzat, Inverse Galois Theory, Springer, New York (1999).
L. Schneps, ed., The Grothendieck Theory of Dessin d’Enfants, Cambridge Univ. Press, Cambridge, (1994).
L. Schneps, http://www.math.jussieu.fr/~leila/.
K. Strebel, Quadratic Differentials, Springer, New York (1984).
B. Sury, The Congruence Subgroup Problem, Hindustan Book Agency (2003).
G. Shabat and V. Voevodsky, “Equilateral triangulations of Riemann surfaces and curves over algebraic number fields,” Sov. Math. Dokl., 39, No. 1, 38–41 (1989).
M.Wood, “Belyi-extending maps and the Galois action on dessin d’enfants,” arXiv.math/0304489v2 (2005).
L. Zapponi, “Fleurs, arbres et cellules: un invariant galoisien pour une famille d’arbres,” Compositio Math., 122, 113–133 (2000).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Fundamentalnaya i Prikladnaya Matematika, Vol. 18, No. 6, pp. 145–159, 2013.
Rights and permissions
About this article
Cite this article
Kamalinejad, A. On the Geometrization of the Absolute Galois Group. J Math Sci 209, 265–274 (2015). https://doi.org/10.1007/s10958-015-2501-7
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10958-015-2501-7