We study the concept of bribery in the situation where voters are willing to change their votes as we ask them, but where their prices depend on the nature of the change we request. Our model is an extension of the one of Faliszewski et al. [FHH06], where each voter has a single price for any change we may ask for. We show polynomial-time algorithms for our version of bribery for a broad range ...

Essentially, some conditions for the Riemannian factor and the warping function of a standard static space-time are obtained in order to guarantee that no nontrivial warping function on the Riemannian factor can make the standard static space-time Einstein.

In a model of the cerebellar granular layer, pairs of neurons aligned along the parallel "ber axis "red synchronized over long distances provided the a!erent mossy "bers were spatially uniformly excited. Here, we applied a nonuniform mossy "ber input pattern and found that local patches of increased granule cell activity were sharpened by the feedback inhibition which granule cells received fro...

In this correspondence, we discuss periodic nonuniform sampling as described by Yen. Such a sampling scheme is more sensitive to additive white noise than uniform sampling. We give here an explicit formula for the noise amplification of periodic nonuniform sampling compared with uniform sampling.