KIRIHATA, Megumi; YAMASHITA, Makoto. Strengthened convexity of positive operator monotone decreasing functions. Mathematica Scandinavica, Berkeley, CA, United States, v. 126, n. 3, p. 559–567, 2020. DOI: 10.7146/math.scand.a-120579. Disponível em: https://journals.msp.org/mscand/article/view/177. Acesso em: 24 jul. 2026.