This work studies the eigenvalues of elliptic linear boundary value problems. Its main content is a set of asymptotic formulas describing the distribution of eigenvalues with high sequential numbers, providing a basic introduction to mathematical concepts and tools.
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"The main definitions and results of asymptotic analysis and the theory of regular and singular perturbations are summarized in this book. They are applied to the asymptotic study of several mathematical models from mechanics, fluid dynamics, statistical mechanics, meteorology a…
An account from 1975-1988 of the developments in the application of the modern asymptotic theory of linear differential systems, which dates from the Levinson Theorem of 1948. The main results and techniques are identified and earlier results are placed in a wider context.