Kotsireas, I. S.; Koukouvinos, C. Inequivalent Hadamard matrices of order 100 constructed from two circulant submatrices. (English) Zbl 1190.05033 Int. J. Appl. Math. 21, No. 4, 685-689 (2008). MSC: 05B20 13P10 68W30 PDFBibTeX XMLCite \textit{I. S. Kotsireas} and \textit{C. Koukouvinos}, Int. J. Appl. Math. 21, No. 4, 685--689 (2008; Zbl 1190.05033)
Kotsireas, I. S.; Koukouvinos, C. Periodic complementary binary sequences of length 50. (English) Zbl 1156.05011 Int. J. Appl. Math. 21, No. 3, 509-514 (2008). MSC: 05B20 94C30 68W30 PDFBibTeX XMLCite \textit{I. S. Kotsireas} and \textit{C. Koukouvinos}, Int. J. Appl. Math. 21, No. 3, 509--514 (2008; Zbl 1156.05011)
Chishtie, F. A.; Rao, K. M.; Kotsireas, I. S.; Valluri, S. R. An investigation of uniform expansions of large order Bessel functions in gravitational wave signals. (English) Zbl 1158.83308 Int. J. Mod. Phys. D 17, No. 8, 1197-1212 (2008). MSC: 83C35 83C25 83B05 PDFBibTeX XMLCite \textit{F. A. Chishtie} et al., Int. J. Mod. Phys. D 17, No. 8, 1197--1212 (2008; Zbl 1158.83308) Full Text: DOI arXiv
Chiarandini, M.; Kotsireas, I. S.; Koukouvinos, C.; Paquete, L. Heuristic algorithms for Hadamard matrices with two circulant cores. (English) Zbl 1153.65043 Theor. Comput. Sci. 407, No. 1-3, 274-277 (2008). MSC: 65F30 15B57 PDFBibTeX XMLCite \textit{M. Chiarandini} et al., Theor. Comput. Sci. 407, No. 1--3, 274--277 (2008; Zbl 1153.65043) Full Text: DOI
Kotsireas, I. S.; Koukouvinos, C. New skew-Hadamard matrices via computational algebra. (English) Zbl 1153.05014 Australas. J. Comb. 41, 235-248 (2008). Reviewer: Patric R. J. Östergård (Helsinki) MSC: 05B20 PDFBibTeX XMLCite \textit{I. S. Kotsireas} and \textit{C. Koukouvinos}, Australas. J. Comb. 41, 235--248 (2008; Zbl 1153.05014)
Kotsireas, Ilias S.; Koukouvinos, Christos; Seberry, Jennifer New orthogonal designs from weighing matrices. (English) Zbl 1143.05012 Australas. J. Comb. 40, 99-104 (2008). Reviewer: D. V. Chopra (Wichita) MSC: 05B20 05B15 PDFBibTeX XMLCite \textit{I. S. Kotsireas} et al., Australas. J. Comb. 40, 99--104 (2008; Zbl 1143.05012)