本帖最后由 deducemath 于 2011-4-25 20:52 编辑 3 U+ c' o8 Q& P( T
. O0 m: T. p+ \' S/ A. X" m回复 babyblue0328 的帖子# S4 a. m* S. I
- m% i6 v9 s$ k8 `+ \# j! |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:
: b/ k4 @! j/ Y5 v, q9 {; yAdventure Games, Permutations, and Spreadsheets
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References8 Y3 O" b6 D! c1 B, A
- J k3 Z% w: l4 Q4 rG. Birkhoff and S. MacLane, A Survey of Modern Algebra, revised edition, The MacMillan Company, New York, 1953.6 C; L* |/ n8 x+ \% ^
I. N. Herstein, Topics in Algebra, 2nd edition, John Wiley & Sons, Inc., New York, 1975.6 h3 ]+ a6 ^) T8 c2 i) ^, d
E. Spitznagel, Jr., A New Look at the Fifteen Puzzle, Mathematics Magazine, Vol. 40 (1967) 171-174.: ]4 k% D$ ~8 f5 K) h* q
S.K. Stein, Mathematics: The Man-Made Universe, W.H. Freeman and Company, New York, 1976, Third Edition.+ Y$ v, T5 } l! y9 H7 `* s
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. |