2 papers
math.CO2025
Finer control on relative sizes of iterated sumsets
Jacob Fox, Noah Kravitz, Shengtong Zhang
Inspired by recent questions of Nathanson, we show that for any infinite abelian group and any integers , there exist finite subsets such th…
cond-mat.mtrl-sci2024
Relativistic and nonrelativistic spin splitting above and below the Fermi level in a -wave altermagnet
Nicholas Dale, Omar A. Ashour, Marc Vila +8
Nonrelativistic spin splitting (NRSS) challenges conventional wisdom about antiferromagnets by allowing spin-split electronic bands even in collinear orders with zero net magnetiza…