Abstract
A new analytical method for the conformal mapping of rectangular polygons with a straight angle at infinity to a half-plane and back is proposed. The method is based on the observation that the SC integral in this case is an abelian integral on a hyperelliptic curve, so it may be represented in terms of Riemann theta functions. The approach is illustrated by the computation of 2D-flow of ideal fluid above rectangular underlying surface and the computation of the capacities of multi-component rectangular condensers with axial symmetry.
Similar content being viewed by others
Notes
Our notation of theta characteristic as two-column vectors is not universally accepted: some authors use the transposed matrix.
References
Trefethen, L.N., Driscoll, T.A.: Schwarz–Christoffel Mapping. Cambridge University Press, Cambridge (2002)
Bogatyrev, A., Hassner, M., Yarmolich, D.: An exact analytical-expression for the read sensor signal in magnetic data storage channels. In: Bruen, A.A., Wehlau, D.L. (eds.) Error-Correcting Codes, Finite Geometries and Cryptography. AMS Series Contemporary Mathematics, vol. 523, pp. 155–160. American Mathematical Society, Providence (2010)
Bogatyrev, A.B.: Conformal mapping of rectangular heptagons. Sbornik Math. 203(12), 35–56 (2012)
Grigoriev, O.A.: Numerical-analytical method for conformal mapping of polygons with six right angles. J. Comput. Math. Math. Phys. 53(10), 1629–1638 (2013)
Deconinck, B., Heil, M., Bobenko, A., van Hoeij, M., Schmies, M.: Computing Riemann theta functions. Math. Comput. 73, 1417–1442 (2004)
Natanzon, S.M.: Moduli of Surfaces, Real Algebraic Curves and Their Superanalogs. AMS Translation of Mathematical Monographs, Providence (2004)
Farkas, H.M., Kra, I.: Riemann Surfaces. Springer, Berlin (1980)
Griffiths, Ph., Harris, J.: Principles of Algebraic Geometry. Wiley, New York (1978)
Rauch, H.E., Farkas, H.M.: Theta Functions with Applications to Riemann Surfaces. Williams & Wilkins Company, Baltimore (1974)
Bogatyrev, A.: Image of Abel–Jacobi map for hyperelliptic genus 3 and 4 curves. J. Approx. Theory 191, 38–45 (2015). arXiv:1312.0445
Mumford, D.: Tata Lectures on Theta. I–II. Springer, Berlin (1983)
Rosenhain, G.: Abhandlung über die Funktionen zweier Variabeln mit vier Perioden, Mem. pres. l’Acad. de Sci. de France des savants XI (1851)
Bogatyrev, A.B.: Effective approach to least deviation problems. Sbornik Math. 193(12), 1749–1769 (2002)
Dubinin, V.N.: Condenser Capacities and Symmetrization in Geometric Function Theory. Birkhauser, Basel (2014)
Goluzin, G.M.: Geometric Function Theory. AMS, Providence (1969)
Bogatyrev, A.B., Grigor’ev, O.A.: Closed formula for the capacity of several aligned segments. In: Complex Analysis and its Applications. Proceedings of Steklov Institute of Mathematics, vol. 298 (2017) (to appear). arXiv:1512.07154
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Darren Crowdy.
O. A. Grigor’ev was supported by RSCF Grant 16-11-10349.
Rights and permissions
About this article
Cite this article
Bogatyrev, A.B., Grigor’ev, O.A. Conformal Mapping of Rectangular Heptagons II. Comput. Methods Funct. Theory 18, 221–238 (2018). https://doi.org/10.1007/s40315-017-0217-z
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40315-017-0217-z