42 citations · 79 across the 4 of their papers we have counts for
4 papers
Synechococcus as a "singing" bacterium: biology inspired by micro-engineered acoustic streaming devices
Kurt Ehlers, Jair Koiller
Certain cyanobacteria, such as open ocean strains of Synechococcus, are able to swim at speeds up to 25 diameters per second, without flagella or visible changes in shape. The mean…
Rubber rolling over a sphere
Jair Koiller, Kurt M. Ehlers
``Rubber'' coated rolling bodies satisfy a no-twist in addition to the no slip satisfied by ``marble'' coated bodies. Rubber rolling has an interesting differential geometric appea…
Nonholonomic systems via moving frames: Cartan equivalence and Chaplygin Hamiltonization
Kurt Ehlers, Jair Koiller, Richard Montgomery +1
A nonholonomic system consists of a configuration space Q, a Lagrangian L, and an nonintegrable constraint distribution H, with dynamics governed by Lagrange-d'Alembert's principle…
Moving frames for cotangent bundles
J. Koiller, P. de M. Rios, K. M. Ehlers
Cartan's moving frames method is a standard tool in riemannian geometry. We set up the machinery for applying moving frames to cotangent bundles and its sub-bundles defined by non-…