An Indium Synthetic Etioporphyrin for Organic Electronics: Aggregation and Photoconductivity in Thin Films.

A new complex of indium(III)chloride with etioporphyrin-I was synthesized and characterized. As with naturally occurring extraligated etioporphyrins, the InCl-EtioP-I spectrum in solution has a very strong B-band and a more than an order of magnitude weaker Q-band, but this difference diminishes in solid films of InCl-EtioP-I obtained by thermal evaporation in vacuum. In a solid, molecules have a tight convex-convex arrangement in a 2D double layered structure with interplane distance of 3.

Tracking of Lines in Spherical Images via Sub-Riemannian Geodesics in .

In order to detect salient lines in spherical images, we consider the problem of minimizing the functional for a curve on a sphere with fixed boundary points and directions. The total length is free, denotes the spherical arclength, and denotes the geodesic curvature of  . Here the smooth external cost is obtained from spherical data.

Association Fields via Cuspless Sub-Riemannian Geodesics in SE(2).

To model association fields that underly perceptional organization (gestalt) in psychophysics we consider the problem of minimizing [Formula: see text] for a planar curve having fixed initial and final positions and directions. Here () is the curvature of the curve with free total length . This problem comes from a model of geometry of vision due to Petitot (in J.