Bernard Dwork

Bernard Morris Dwork was an American mathematician, known for his application of p-adic analysis to local zeta functions, and in particular for a proof of the first part of the Weil conjectures: the rationality of the zeta function of a variety over a finite field. The general theme of Dwork's research was p-adic cohomology and p-adic differential equations. He published two papers under the pseudonym Maurizio Boyarsky.