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Results tagged with fa.functional-analysis
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user 545638
Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.
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Nonstationary phase method for oscillatory integral
I want to approximate an integral of the form $$\int_a^bf(t)e^{ig(t)}dt,$$where $f(t)$ is smooth, $g(t)$ is real-valued and smooth.
The stationary phase method says that if $t_0\in [a,b]$ is such tha …
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