The paper is concerned with the bifurcation of limit cycles in general quadratic perturbations of a quadratic reversible and non-Hamiltonian system, whose period annulus is bounded by an elliptic separatrix related to a singularity at infinity in the poincar'{e} disk. Attention goes to the number of limit cycles produced by the period annulus under perturbations. By using the appropriate Picard...

Fast Scene Generation on General Purpose Raster Systems • Henry Fuchs Gregory D. Abram Eric D. Grant University of North Carolina at Chapel Hill Image generation of scenes with over a thousand polygons can be generated on a general purpose raster system rapidly enough for interactive use. We report new results from an algorithm first reported in [Fuchs 1980], which achieves this level of perfor...

Fuchs. Translated by Alexander Duane. .Fp. 908. Illustrations 441. Published by J. B. Lippincott & Company. There is small need to recommed a now edition of this well-known and well-appreciated work. The third English, the edition under review, is an authorised translation from the eleventh German. Alterations are numerous, especially in the sections on diseases of the cornea, iritis sympatheti...

A general framework of optimal eavesdropping on BB84 protocol was provided by Fuchs et al. in 1997. An upper bound on mutual information was derived in their work, which could be achieved by a specific type of interaction and the corresponding measurement. However, uniqueness of an optimal interaction was left as an open problem there. We resolve this problem here and establish the uniqueness. ...

purpose: to analyze the results of scanning slit topography (orbscan ii, bausch & lomb) in both eyes of patients with unilateral fuchs’ heterochromic iridocyclitis methods: an intra-subject non-interventional case-control study was conducted on patients with unilateral fuchs’ heterochromic iridocyclitis (fhi). none of the patients had history of ocular surgery. corneal topographic parameters ob...

We prove an explicit formula for a projection of singular vectors in the Verma module over a rank 2 Kac–Moody Lie algebra onto the universal enveloping algebra of the Heisenberg Lie algebra and of sl2 (Theorem 3). The formula is derived from a more general but less explicit formula due to Feigin, Fuchs and Malikov [Funct. Anal. Appl. 20 (1986), no. 2, 103–113]. In the simpler case of A1 the for...