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Fourier series : a modern introduction
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The article was published on 1979-01-01 and is currently open access. It has received 303 citations till now. The article focuses on the topics: Fourier series.read more
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MonographDOI
Lectures on analytic differential equations
TL;DR: Normal forms and desingularization Singular points of planar analytic vector fields Local and global theory of linear systems Functional moduli of analytic classification of resonant germs and their applications Global properties of complex polynomial foliations Appendix as mentioned in this paper.
Journal ArticleDOI
Almost invariant subspaces: An approach to high gain feedback design--Part II: Almost conditionally invariant subspaces
TL;DR: In this paper, the authors considered the problem of approximate disturbance decoupling by measurement feedback and showed that this problem is solvable to any arbitrary degree of accuracy if and only if: 1) almost disturbance control by state feedback, and 2) approximate disturbance estimation of the to-be-controlled output are both possible.
Journal ArticleDOI
Effects of high-pass and low-pass spatial filtering on face identification
TL;DR: The data suggest that face identification is preferentially supported by a band of spatial frequencies of approximately 8-16 cycles per face; contrast or line-based explanations were found to be inadequate.
Proceedings ArticleDOI
Almost invariant subspaces: An approach to high gain feedback design
TL;DR: In this talk, some of the main concepts, results, and applications of the theory developed in almost controlled and almost conditionally invariant subspaces are run through.
Journal ArticleDOI
Solutions of Euler-Poisson Equations¶for Gaseous Stars
TL;DR: In this paper, the Euler-Poisson equations governing gas motion under self-gravitational force were studied and the existence, non-existence, uniqueness and instability of stationary solutions with vacuum were discussed in terms of the adiabatic exponent and the entropy function.