Conceptual

Longtime Dynamics of Reducible Cooperative Systems with Nonlocal Diffusion and Free Boundaries

A classification of the possible long-time behaviors of a two-species cooperative (mutualistic) population model with nonlocal (convolution-kernel) diffusion and moving free boundaries. Because the cooperative coupling is reducible, the system admits many non-constant nonnegative steady states, yielding richer outcomes than the irreducible monostable case; the analysis also gives the spreading speeds of the free boundaries, the limiting states of the two populations, and threshold conditions on the dispersal kernels under which spreading accelerates.