Dice Question Streamline Icon: https://streamlinehq.com

Twin Gauss Circle Primes

Prove that there exist infinitely many integers r ≥ 1 such that both C(r) and C(r + 1), where C(r) is the number of integer lattice points inside the radius‑r circle centered at the origin, are prime numbers.

Information Square Streamline Icon: https://streamlinehq.com

Background

The paper defines Gauss Circle Primes as those values of C(r) that are prime. Drawing an analogy to the classical twin prime conjecture (which asserts infinitely many prime pairs p and p+2), the authors propose a geometric analogue based on consecutive radii r and r+1.

References

We conjecture the Gauss Circle Prime analogue: there are infinitely many cases when C(r) and C(r +1) are both prime.

Gauss Circle Primes (2502.06804 - Ehrenborg, 2 Feb 2025) in Question 4.1, Section 4 (Concluding remarks)