SIAM Journal on Discrete Mathematics. 2003;17(1):161-169. doi: 10.1137/s0895480103422184 Q21.02025
Acyclic Homomorphisms and Circular Colorings of Digraphs
有向图的无环同态与循环着色
DOI: 10.1137/s0895480103422184
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SIAM Journal on Discrete Mathematics. 2003;17(1):161-169. doi: 10.1137/s0895480103422184 Q21.02025
DOI: 10.1137/s0895480103422184
摘要 查看摘要