Inequalities, identities, and bounds for divided differences of the exponential function

Qiulin Zeng, Nicholas Ezzell, Arman Babakhani +2

Let $\exp [x_0,x_1,\dots ,x_n]$ denote the divided difference of the exponential function. (i) We prove that exponential divided differences are log-submodular. (ii) We establish the…