arXiv:2610.37879v1 Announce Type: new Abstract: We study a traveling wave formulation of the viscous Saint-Venant system in one spatial dimension with capillarity, which can be reduced to an equivalent nonlinear third order ODE. We construct heteroclinic orbits for small positive capillarity, for arbitrary positive capillarity under an explicit small Froude number condition, and in a small-amplitude regime away from the critical Froude number. These then give rise to smooth traveling bore wave solutions to the viscous Saint-Venant system.
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