At its core, DFT postulates that the ground-state energy of a quantum system is a functional of the electron density. This principle, known as the Hohenberg-Kohn theorem, simplifies the problem of ...
Merton, Robert C., and Zvi Bodie. "Financial Infrastructure and Public Policy: A Functional Perspective." Harvard Business School Working Paper, No. 95-064, January 1995.
Merton, Robert C., and Zvi Bodie. "Financial Infrastructure and Public Policy: A Functional Perspective." Chap. 8 in The Global Financial System: A Functional ...