Copyright © 2012 D. S. Kim and T. Kim. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Let be the -dimensional vector space over . We show that is a good basis for the space , for our purpose of arithmetical and combinatorial applications. Thus, if is of degree , then for some uniquely determined . In this paper we develop method for computing from the information of .