H-kernels and H-obstructions in H-colored digraphs
نویسندگان
چکیده
منابع مشابه
H-Kernels in Infinite Digraphs
Let H be a digraph possibly with loops and D a digraph (possibly infinite) without loops whose arcs are coloured with the vertices of H (D is an H-coloured digraph). V(D) and A(D) will denote the sets of vertices and arcs of D respectively. A directed walk or a directed pathW in D is an H-walk or an H-path if and only if the consecutive colors encountered onW form a directed walk in H. A set N ...
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ژورنال
عنوان ژورنال: Discrete Mathematics
سال: 2015
ISSN: 0012-365X
DOI: 10.1016/j.disc.2015.05.021