Cornelius Lanczos notable work Lanczos algorithm
the Lanczos algorithm for finding eigenvalues of large symmetric matrices,
the Lanczos approximation for the gamma function,
the conjugate gradient method for solving systems of linear equations.In 1962, Lanczos showed that the Weyl tensor, which plays a fundamental role in general relativity, can be obtained from a tensor potential that is now called the Lanczos potential.
Lanczos resampling is based on a windowed sinc function as a practical upsampling filter approximating the ideal sinc function. Lanczos resampling is widely used in video up-sampling for digital zoom applications and image scaling.
Books such as The Variational Principles of Mechanics (1949) is a classic graduate text on mechanics. He shows his explanatory ability and enthusiasm as a physics teacher: in the preface of the first edition he says it is taught for a two-semester graduate course of three hours weekly.
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