Cauchy distributions form a convolution semigroup, i.e. μt + s = μt * μs. This is because to hit a plane at distance t + s the Brownian motion has to hit a parallel plane at distance t first, and then ...

Generative artificial intelligence tools are becoming more available, and, for some workers, indispensable for their jobs.

On a late-summer day in 1856, a letter carrier stepped from a mail coach in front of a three-story townhouse in Mayfair, in central London. Crossing the threshold, the courier handed a wax-sealed ...