On equienergetic signed graphs

The energy of a signed graph SS with eigenvalues x1,x2,…,xnx1,x2,…,xn is defined as E(S)=∑j=1n|xj|. Two signed graphs of same order are said to be equienergetic if they have the same energy. In this paper, we give several constructions for the pairs of signed graphs to be equienergetic.