An institution has offered a $1.6 million prize to anyone who can solve a famous maths problem that has puzzled mathematicians for more than a century.

In this paper we analyze implications of a singular contemporaneous disturbance covariance matrix for the estimation and hypothesis testing of systems of equations with autoregressive disturbances. We ...

A retired mathematician claims he has solved a 160-year-old math problem called the Riemann hypothesis, which could net a prize of $1 million.

In this article, we consider an experimental design commonly used by researchers who study plant disease and examine large-sample, likelihood-based hypothesis tests that can be used to characterize ...