Permutation polynomials have been a subject of study for a long time and have applications in many areas of science and engineering. However, only a small number of specific classes of permutation polynomials are described in the literature so far. In this paper we present a number of permutation trinomials over finite fields, which are of different forms.… (More)
For the cyclic group G = Z/nZ and any non-empty A ∈ Z. We define the Davenport constant of G with weight A, denoted by D A (n), to be the least natural number k such that for any sequence (x 1 , · · · , x k) with x i ∈ G, there exists a non-empty subsequence (x j 1 , · · · , x j l) and a 1 , · · · , a l ∈ A such that l i=1 a i x j i = 0. Similarly, we… (More)
With a large integrated luminosity expected at the Tevatron, a next-to-leading order (NLO) calculation is no longer sufficient to describe the data which yield the precision measurement of M W , etc. Thus, we extend the Collins-Soper-Sterman resummation formalism, for on-shell vector boson production , to correctly include the effects of the polarization… (More)
Let G be a finite abelian group, and let S be a sequence of elements in G. Let f (S) denote the number of elements in G which can be expressed as the sum over a nonempty subsequence of S. In this paper, we slightly improve some results of  on f (S) and we show that for every zero-sum-free sequences S over G of length |S| = exp(G) + 2 satisfying f (S) 4… (More)
Production of single top quarks at a high energy hadron collider is studied as a means to identify physics beyond the standard model related to the electroweak symmetry breaking. The sensitivity of the s-channel W * mode, the t-channel W-gluon fusion mode, and the t W − mode to various possible forms of new physics is assessed, and it is found that the… (More)
I briefly report on what we can learn about the top quark at hadron colliders.
a r t i c l e i n f o a b s t r a c t Permutation polynomials are an interesting subject of mathematics and have applications in other areas of mathematics and engineering. In this paper, we develop general theorems on permutation polynomials over finite fields. As a demonstration of the theorems, we present a number of classes of explicit permutation… (More)