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In this paper, we consider an initial-value problem for a hyperbolic Fisher equation. In particular, we consider the corresponding travelling wave problem and establish the conditions under which permanent-form travelling wave solutions exist. Numerical simulations of the initial-value problem...
The observations tell us that the density in the giant molecular clouds in which stars are formed is inhomogeneous on a variety of scales, but it seems unlikely that this is due to the action of gravitational instability. This paper describes numerical calculations using an adaptive mesh...
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