Friday, November 3 at 2pm in Clark 141 Jochen Denzler (Notre Dame) "Rigorous Branch Classification for the Spectrum of the Orr-Sommerfeld Equation for Plane Couette Flow" Abstract: The spectrum of the Orr-Sommerfeld equation for Plane Couette Flow (solution continuum of the characteristic equation) undergoes only remarkably simple topological changes as the Reynolds number changes from zero to infinity. The comparatively simple case of Reynolds number 0 determines most of the structure for any finite Reynolds number, but not for infinite Reynolds number; the only complementary phenomenon is the so-called mode crossing. -------------------------------------------------------------------------- Of related interest: November 2 colloquium.