The existence of difference matrices over small cyclic groups is investigated in this computer-aided work. The maximum values of the parameters for which difference matrices exist as well as the number of inequivalent difference matrices in each case is determined up to the computational limit. Several new difference matrices have been found in this manner. The maximum number of rows is 9 for an r x 15 difference matrix over Z(3), 8 for an r x 15 difference matrix over Z(5), and 6 for an r x 12 difference matrix over 4; the number of inequivalent matrices with these parameters is 5, 2, and 7, respectively. (C) 2010 Elsevier B.V. All rights reserved.
机构:
Kent State Univ, Dept Math Sci, 4314 Mahoning Ave, Warren, OH 44483 USAKent State Univ, Dept Math Sci, 4314 Mahoning Ave, Warren, OH 44483 USA
Dinh, Hai Quang
论文数: 引用数:
h-index:
机构:
Gaur, Atul
Kumar, Pratyush
论文数: 0引用数: 0
h-index: 0
机构:
Lovely Profess Univ, Sch Chem Engn & Phys Sci, Dept Math, Jalandhar 144001, IndiaKent State Univ, Dept Math Sci, 4314 Mahoning Ave, Warren, OH 44483 USA
Kumar, Pratyush
Singh, Manoj Kumar
论文数: 0引用数: 0
h-index: 0
机构:
Lovely Profess Univ, Sch Chem Engn & Phys Sci, Dept Math, Jalandhar 144001, IndiaKent State Univ, Dept Math Sci, 4314 Mahoning Ave, Warren, OH 44483 USA
Singh, Manoj Kumar
Singh, Abhay Kumar
论文数: 0引用数: 0
h-index: 0
机构:
Indian Inst Technol, Indian Sch Mines, Dept Math & Comp, Dhanbad 826004, IndiaKent State Univ, Dept Math Sci, 4314 Mahoning Ave, Warren, OH 44483 USA
机构:
Department of Applied Science, Indian Institute of Information Technology, Allahabad,211015, IndiaDepartment of Applied Science, Indian Institute of Information Technology, Allahabad,211015, India
Singh, Yogendra
Tiwari, Anand Kumar
论文数: 0引用数: 0
h-index: 0
机构:
Department of Applied Science, Indian Institute of Information Technology, Allahabad,211015, IndiaDepartment of Applied Science, Indian Institute of Information Technology, Allahabad,211015, India