2 papers
math.NT2026
Exceptions to the Erd\H os--Straus--Schinzel conjecture
Carl Pomerance, Andreas Weingartner
A famous conjecture of Erd\H os and Straus is that for every integer , can be represented as , where are positive integers. This conjecture was ge…
math.NT2025
Counting solvable -unit equations and linear recurrence sequences with zeros
Alina Ostafe, Carl Pomerance, Igor E. Shparlinski
We show that only a rather small proportion of linear equations are solvable in elements of a fixed finitely generated subgroup of a multiplicative group of a number field. The arg…