Department of Mathematics, University of Bombay, Vidyanagari, Bombay 400 098, India;School of Mathematics, Tata Institute of Fundamental Research, Coloba, Bombay 400 005, India
Abstract:
The problem of embedding an orthogonal array of strength 2 into a complete orthogonal array is discussed. It is shown that for any n≠4 any orthogonal array of strength 2 and deficiency 2 can always be embedded into a corresponding complete orthogonal array.