Supporting information for Igoshin et al. (2001) Proc. Natl. Acad. Sci. USA98 (26), 14913–14918. (10.1073/pnas.221579598)
Fig. 6. (a) Schematic of two wave crests separated by a trough showing the various quantities used to define the stability criterion Eq. 3. (b) Schematic of two wave crests about to collide showing the various quantities used to derive the stability criterion (14).