单词 | Alexander's Horned Sphere |
释义 | Alexander's Horned Sphere![]() The above solid, composed of a countable Union of Compact Sets, is called Alexander's hornedsphere. It is Homeomorphic with the Ball The complement in A humorous drawing by Simon Frazer (Guy 1983, Schroeder 1991, Albers 1994) depicts mathematician John H. Conway with Alexander's horned sphere growing from his head. ![]()
Albers, D. J. Illustration accompanying ``The Game of `Life'.'' Math Horizons, p. 9, Spring 1994. Guy, R. ``Conway's Prime Producing Machine.'' Math. Mag. 56, 26-33, 1983. Hocking, J. G. and Young, G. S. Topology. New York: Dover, 1988. Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, pp. 80-81, 1976. Schroeder, M. Fractals, Chaos, Power Law: Minutes from an Infinite Paradise. New York: W. H. Freeman, p. 58, 1991. |
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