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Results tagged with real-analysis
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user 60441
Real-valued functions of real variable, analytic properties of functions and sequences, limits, continuity, smoothness of these.
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Estimates on evolution operator
Let's consider the following evolution operator in $\mathbb{R}^3$
$$S(t)=e^{(i+\delta)t\Delta }$$
How to get the following estimate
$$\Vert S(t)f\Vert_2\leq C_\varepsilon t^{-\frac{1}{4}}\Vert f\Vert_ …
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