Four Heegner Numbers Premium Unisex Tee
A Heegner number is a square-free positive integer d such that the ring of algebraic integers of the rationals adjoined square root negative d has unique factorization. There are nine Heegner numbers: 1, 2, 3, 7, 11, 19, 43, 67, and 163. There are many apparent mathematical coincidences involving Heegner numbers that can be explained by complex multiplication and the q-expansion of the j-invariant. That is a lot of jargon - just enjoy the shirt. Produced and delivered within 2-3 business days with express delivery option (US only - navy and black colors only). This classic unisex jersey short sleeve tee fits like a well-loved favorite. Soft cotton and quality print. These t-shirts have-ribbed knit collars to bolster shaping. The shoulders are tapered for a better fit over time. Dual side seams hold the garment's shape for longer. .: Made with 100% Airlume combed and ring-spun cotton, a lightweight fabric (4.2 oz/yd² (142 g/m²)) that is easy to layer, breathable. Perfect for active and