An algebraic characterization of $k$–colorability
An algebraic characterization of $k$–colorability
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$k$–可着色性的代数表征
DOI:
10.1090/proc/15391
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发表时间:
2021
影响因子:
1
通讯作者:
Koberda, Thomas
中科院分区:
文献类型:
--
作者:
Flores, Ramón;Kahrobaei, Delaram;Koberda, Thomas
We characterize–colorability of a simplicial graph via the intrinsic algebraic structure of the associated right-angled Artin group. As a consequence, we show that a certain problem about the existence of homomorphisms from right-angled Artin groups to products of free groups is NP–complete. References