On the logarithmic mean of accretive matrices


Fuping Tan, Antai Xie




In this paper, we define the logarithmic mean of two accretive matrices and study its basic properties. Among other results, we show that if A, B are accretive matrices, then L(A, B) ≥ L(A, B), where L(A, B) is the logarithmic mean of A and B, and A means the real part of A. This complements a recent result of Lin and Sun