Exact(2)
We have u t ≥ 0 from (H1) and the comparison principle of the usual parabolic equation (see, e.g., [8]).
We remark that, owing to the conical dispersion relation (29), the drift-diffusion equations (68), (69) and (70) have a 'specular' structure with respect to the drift-diffusion equations for Fermions with the usual parabolic dispersion relation [13, 24, 25].
Similar(58)
Different from the usual evolutionary (p(x -Laplacian equation, the anisotropic parabolic equation is considered in this paper.
The most usual techniques for increasing the thermal performance of parabolic trough collectors are the use of inserts, internal fins, metallic foams and the dimpled absorbers.
The usual maximum principle concerns with second-order differential operators of elliptic or parabolic type.
Crime, too, follows just the same parabolic curve.
As usual.
The usual.
"Usual day".
Which, of course, is a lesson about parabolic trajectories.
Parabolic skis also provide greater stability during turns.
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