In this paper,we give several identities of finite sums and some infinite series involving powers and inverse of binomial coefficients,which extends the results
The nullity of a graph G is defined to be the multiplicity of the eigenvalue zero in its spectrum.In this paper we characterize the unicyclic graphs with nullit
This paper is devoted to constructing an authentication code with arbitration using subspaces of vector spaces over finite fields.Moreover,if we choose the enco