Abatraet-We study the selection of the shape and growth velocity of three dimensionaf dendritic crystals in cubically anisotropic materials. We demonstrate that aside from minor additional complexities due to the lack of axisymmetry, the recently discovered mechanism of “microscopic solvability” can be extended to these systems and used to find a unique needle crystal solution of the equations ...

We consider the problem of dynamic routing in a multi-fiber time-slotted wavelength routed WDM network. Requests to establish a connection are dynamic and each connection requests an integer multiple of some basic unit. Each wavelength has capacity of carrying a multiple of these channels, where each channel is represented by a time-slot as in TDM networks. We represent the network as a layered...