Which Exterior Powers are Balanced?

[摘要] A signed graph is a graph whose edges are given $\pm 1$ weights. In such a graph, the sign of a cycle is the product of the signs of its edges. A signed graph is called balanced if its adjacency matrix is similar to the adjacency matrix of an unsigned gra

[学科分类] 离散数学和组合数学

[关键词] Signed Graph;Exterior Power;Quotient Graph