Knots and links in spatial graphs
نویسنده
چکیده
We study the relations of knots and links contained in a spatial graph. This is an survey article on the results about knots and links contained in a spatial graph. We do not intend to cover all results in this topic. We only treat some of them here. The set of knots and links contained in a spatial graph is a naive invariant of spatial graph. However it is of course not a complete invariant in general. For example Kinoshita’s theta curve in Fig. 1 is not trivial but contains only trivial knots as the trivial theta curve. See for other such examples [5], [20] and [15].
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تاریخ انتشار 2002