International Journal of Mathematics and Mathematical Sciences
Volume 28 (2001), Issue 4, Pages 189-200
doi:10.1155/S016117120100686X
Matrix transformations of starshaped sequences
Chikkanna R. Selvaraj
and Suguna Selvaraj
Penn State University, Shenango Campus, 147, Shenango Avenue, Sharon 16146, PA, USA
Abstract
We deal with matrix transformations preserving the starshape of sequences. The main result gives the necessary and sufficient conditions for a lower triangular matrix A to preserve the starshape of sequences. Also, we discuss the nature of the mappings of starshaped sequences by some classical matrices.