منابع مشابه
Combinatorial map as multiplication of combinatorial knots
We show that geometrical map can be expressed as multiplication of combinatorial maps, i.e. map P is equal to multiplication of its knot, inner knot’s square and trivial knot (= μ · ν · π1).
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ژورنال
عنوان ژورنال: Journal of Combinatorial Theory, Series B
سال: 1975
ISSN: 0095-8956
DOI: 10.1016/0095-8956(75)90066-0