This article presents a novel data-driven framework for constructing eigenfunctions of the Koopman operator geared toward prediction and control. The method leverages the richness of the spectrum of ...

Abstract: An asymptotic technique is presented, resulting in an analytically simple self-consistent description of the modes of a circular dielectric structure. When the dielectric difference between ...

Research Article Mathematics On the Eigenfunctions and Eigenvalues of the General Linear Elliptic Differential Operator Felix E. Browder Authors Info & Affiliations May 15, 1953 39 (5) 433-439 ...

The description of the band gap of halide perovskites at the level of density functional theory (DFT) has been subject of several studies but still presents significant problems and deviations from ...