How often are $ \lfloor {n^α} \rfloor $ and $ \lfloor {n^β} \rfloor $ simultaneously primes?

Abstract

Let $ \lfloor {x} \rfloor $ denote the greatest integer less than or equal to a real number $x$. Given real numbers $0<α_1 < α_2 < \cdots< α_k < 1$ satisfying a certain condition, we show that there are infinitely many positive integers $n$ for which all of $ \lfloor{n^{α_1}}\rfloor, \lfloor{n^{α_2}}\rfloor,\ldots, \lfloor{n^{α_k}}\rfloor $ are prime numbers. Our approach relies on establishing a simultaneous equidistribution theorem for $ \lfloor{n^{α_i}}\rfloor $ across $k$-many arithmetic progressions.