2023/09/28 by Chaohua Dong, Dong, Chaohua, Jiti Gao +5
Mathematics · #Econometrics (econ.EM) #FOS: Economics and business #Mathematical and Theoretical Analysis
paper · pdf · doi:10.48550/arxiv.2309.16348
openalex publication_date 2023/09/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
To tackle difficulties for theoretical studies in situations involving nonsmooth functions, we propose a sequence of infinitely differentiable functions to approximate the nonsmooth function under consideration. A rate of approximation is established and an illustration of its application is then provided.