Sudoku Graphs are Integral
Sudoku Graphs are Integral
复制标题
数独图是积分的
DOI:
10.37236/263
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
T. Sander
中科院分区:
文献类型:
--
作者:
T. Sander
Sudoku graphs have only 5 or 6 distinct eigenvalues and all of them are integers. Moreover, the associated eigenspaces admit bases with entries from the set $\{0, 1, -1\}$.