本帖最后由 deducemath 于 2011-4-25 20:52 编辑 9 B, w, E9 w1 E9 u- N
! t. p5 P) a$ m- G回复 babyblue0328 的帖子0 b; A: `, S3 i U3 T4 C' q6 u, r; Z
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关于 2、战栗(Shivers) ,网上有篇妙文详细分析游戏中的一个谜题。原始链接已损坏,还好我几年前将网页保存下来。下面跟大家共享:
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( p. a/ P* P& Q9 a1 _G. Birkhoff and S. MacLane, A Survey of Modern Algebra, revised edition, The MacMillan Company, New York, 1953.1 |3 {! |# o) |& q8 P- T
I. N. Herstein, Topics in Algebra, 2nd edition, John Wiley & Sons, Inc., New York, 1975.
, B- c& v% L6 f8 x8 L5 t) HE. Spitznagel, Jr., A New Look at the Fifteen Puzzle, Mathematics Magazine, Vol. 40 (1967) 171-174./ _4 L0 D3 S Q3 K" K
S.K. Stein, Mathematics: The Man-Made Universe, W.H. Freeman and Company, New York, 1976, Third Edition.2 ~; R! m% r& H3 |- z5 t, g( R
R.M. Wilson, Graph Puzzles, Homotopy, and the Alternating Group, Journal of Combinatorial Theory (B) 16 (1974) 86-96.
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Acknowledgment. I would like to thank my good friend George Mackiw for his encouragement and support in writing this article. |