variable 3rd. New York, London: McGraw-Hill. 1979. ISBN 0-07-000657-1. Beardon, Alan. Complex analysis: the argument principle in analysis and topology.

數學研究生教材

Brondsted (1983, ISBN 978-1-4612-1148-8) The Geometry of Discrete Groups, Alan F. Beardon（德语） (1983, 2nd print 1995, ISBN 978-1-4612-7022-5) Sequences and Series

基本多边形

} 这给出整个群呈示。在高維，基本多变形的想法体现为齐性空间。凯莱图欧几里得环沃罗诺伊图（Voronoi diagram） Alan F. Beardon, The Geometry of Discrete Groups (1983), Springer-Verlag, New York

Found in articles

複變動態系統

Sciences SUNY at Stony Brook. [2016-12-17]. （原始内容存档于2014-01-10）. Alan F. Beardon, Iteration of Rational Functions: complex analytic dynamical systems

辐角

variable 3rd. New York, London: McGraw-Hill. 1979. ISBN 0-07-000657-1. Beardon, Alan. Complex analysis: the argument principle in analysis and topology.

數學研究生教材

Brondsted (1983, ISBN 978-1-4612-1148-8) The Geometry of Discrete Groups, Alan F. Beardon（德语） (1983, 2nd print 1995, ISBN 978-1-4612-7022-5) Sequences and Series

基本多边形