Abstract
A pseudo-real Riemann surface admits anticonformal automorphisms but no anticonformal involution. We obtain the classification of actions and groups of automorphisms of pseudo-real Riemann surfaces of genera 2, 3 and 4. For instance the automorphism group of a pseudo-real Riemann surface of genus 4 is either C 4 or C 8 or the Fröbenius group of order 20, and in the case of C 4 there are exactly two possible topological actions. Let M K PR,g be the set of surfaces in the moduli space M K g corresponding to pseudo-real Riemann surfaces. We obtain the equisymmetric stratification of M K PR,g for genera g = 2, 3, 4, and as a consequence we have that M K PR,g is connected for g = 2, 3 but M K PR,4 has three connected components.
Similar content being viewed by others
References
Bartolini, G., Costa, A. F., Izquierdo, M.: On the connectivity of branch loci of moduli spaces. Annales Academiæ Scientiarum Fennicæ, 38, 245–258 (2013)
Bartolini, G., Costa, A. F., Izquierdo, M., et al.: On the connectedness of the branch locus of the moduli space of Riemann surfaces. Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Math. RACSAM, 104(1), 81–86 (2010)
Bartolini, G., Izquierdo, M.: On the connectedness of the branch locus of the moduli space of Riemann surfaces of low genus. Proc. Amer. Math. Soc., 140(1), 35–45 (2012)
Bogopol’skiĭ, O. V.: Classifying the actions of finite groups on orientable surfaces of genus 4 [translation of Proceedings of the Institute of Mathematics, 30 (Russian), 48-69, Izdat. Ross. Akad. Nauk, Sibirsk. Otdel., Inst. Mat., Novosibirsk, 1996]. Siberian Adv. Math., 7(4), 9–38 (1997)
Broughton, S. A.: The equisymmetric stratification of the moduli space and the Krull dimension of map** class groups. Topology Appl., 37(2), 101–113 (1990)
Bujalance, E., Cirre, J., Gamboa, J. M., et al.: Symmetries of compact Riemann surfaces. In: Lecture Notes in Mathematics, No. 2007, Springer-Verlag, Berlin, 2010
Bujalance, E., Conder, M. D. E.: On cyclic groups of automorphisms of Riemann surfaces. J. London Math. Soc. (2), 59(2), 573–584 (1999)
Bujalance, E., Conder, M. D. E., Costa, A. F.: Pseudo-real Riemann surfaces and chiral regular maps. Trans. Amer. Math. Soc., 362(7), 3365–3376 (2010)
Bujalance, E., Costa, A. F.: Orientation reversing automorphisms of Riemann surfaces. Illinois J. Math., 38(4), 616–623 (1994)
Bujalance, E., Etayo, J. J., Gamboa, J. M., et al.: Automorphism groups of compact bordered Klein surfaces. A combinatorial approach. In: Lecture Notes in Mathematics, 1439, Springer-Verlag, Berlin, 1990
Bujalance, E., Turbek, P.: Asymmetric and pseudo-symmetric hyperelliptic surfaces. Manuscripta Math., 108(1), 1–11 (2002)
Buser, P., Seppälä, M., Silhol, R.: Triangulations and moduli spaces of Riemann surfaces with group actions. Manuscripta Math., 88(2), 209–224 (1995)
Costa, A. F.: Classification of the orientation reversing homeomorphisms of finite order of surfaces. Topology Appl., 62, 14–162 (1995)
Costa, A. F., Izquierdo, M.: On the connectedness of the locus of real Riemann surfaces. Ann. Acad. Sci. Fenn. Math., 27(2), 341–356 (2002)
Costa, A. F., Izquierdo, M.: Equisymmetric strata of the singular locus of the moduli space of Riemann surfaces of genus 4. In: Geometry of Riemann surfaces, London Math. Soc. Lecture Note Ser., 368, Cambridge Univ. Press, Cambridge, 2010, 120–138
Costa, A. F., Izquierdo, M.: On the connectedness of the branch locus of the moduli space of Riemann surfaces of genus 4. Glasg. Math. J., 52(2), 401–408 (2010)
Costa, A. F., Porto, A. M.: On anticonformal automorphisms of order > 2 of Riemann surfaces. In: Complex Geometry of Groups (Olmué, 1998), Contemp. Math., 240, Amer. Math. Soc., Providence, RI, 1999, 89–96
Etayo Gordejuela, J. J.: Nonorientable automorphisms of Riemann surfaces. Arch. Math. (Basel), 45(4), 374–384 (1985)
Kimura, H.: Classification of automorphism groups, up to topological equivalence, of compact Riemann surfaces of genus 4. J. Algebra, 264(1), 26–54 (2003)
Macbeath, A. M., Singerman, D.: Spaces of subgroups and Teichmüller space. Proc. London Math. Soc., 31, 211–256 (1975)
Natanzon, S.: Moduli of Riemann surfaces real algebraic curves and their superanalogs. In: Translations of Mathematical Monographs, 225, Amer. Math. Soc., Providence, 2004
Seppälä, M.: Real algebraic curves in the moduli space of complex curves. Compositio Math., 74(3), 259–283 (1990)
Singerman, D.: Finitely maximal Fuchsian groups. J. London Math. Soc. (2), 6, 29–38 (1972)
Singerman, D.: Symmetries of Riemann surfaces with large automorphism group. Math. Ann., 210, 17–32 (1974)
Singerman, D.: Symmetries and pseudo-symmetries of hyperelliptic surfaces. Glasgow Math. J. (1), 21, 39–49 (1980)
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by Spanish Government Research (Grant No. MTM2011-23092)
Electronic supplementary material
Rights and permissions
About this article
Cite this article
Bujalance, E., Costa, A.F. Automorphism groups of pseudo-real Riemann surfaces of low genus. Acta. Math. Sin.-English Ser. 30, 11–22 (2014). https://doi.org/10.1007/s10114-013-2420-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10114-013-2420-9