Characteristic Polynomials of Some Weighted Graph Bundles and Its Application to Links
نویسندگان
چکیده
In this paper, we introduce weighted graph bundles and study their characteristic polynomial. In particular, we show that the characteristic polynomial of a weighted K2 (K2)bundles over a weighted graph F can be expressed as a product of characteristic polynomials two weighted graphs whose underlying graphs are F As an application, we compute the signature of a link whose corresponding weighted graph is a double covering of that of a given link.
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