The robustness of block designs against missing observations is revisited. It has been shown that A-efficiency criterion is not an appropriate measure to judge the efficiency of the residual design.

This monthly journal, begun in 1950, is devoted entirely to research in pure and applied mathematics, principally to the publication of original papers of moderate length. A section called Shorter ...

Austin nearly topped the charts as the fastest-growing city in the United States in 2023. It trailed only Phoenix, which held the top spot. Capitalizing on the good talent flooding the area, several ...