Motion of a Spot in a Reaction Diffusion System under the Influence of Chemotaxis

Figure 8

Phase diagram of spot motion. Data are obtained by the simulation of the full tensor model. . , , and in the figure represent regions of no motion, straight motion, and circular motion, respectively. (a) Phase diagram in the - plane. . The solid, dashed, and dotted curves correspond to the cases of , 0.25, and −0.25, respectively. The upper (lower) region of each curve corresponds to the region of circular (straight) motion, and the region corresponds to the region of no motion. (b) Phase diagram in the - plane. . The solid, dashed, and dotted curves correspond to the cases of , 0.25, and −0.25, respectively. The upper (lower) region of each curve corresponds to the region of straight (circular) motion. (c) Phase diagram in the - plane. . The solid, dashed, and dotted curves correspond to the cases of , 0.25, and −0.25, respectively. The region across each curve is the same as in (a). (d) Phase diagram in the - plane. . The solid, dashed, and dotted curves correspond to the cases of , 0.25, and −0.25, respectively. The region across each curve is the same as in (b).

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