On Some Improvements of Lead-Flotation

Lead and Zinc Ores: Flotation

of isotopically labelled vitamin D metabolites by HPLC. Journal of Chromatography 303: 229}233. Kaspersen FM, van Acquoy J, van de Laar GLM, Wagenaars GN and Funke CW (1984) Deuterium isotope effects in mianserin. Recueil Travaux Chimique de Pay-Bas 103: 32}36. Klein PD (1966) Occurence and signiRcance of isotope fractionation during analytical separation of large molecules. Advances in Chromat...

Some improvements of numerical radius inequalities via Specht’s ratio

We obtain some inequalities related to the powers of numerical radius inequalities of Hilbert space operators. Some results that employ the Hermite-Hadamard inequality for vectors in normed linear spaces are also obtained. We improve and generalize some inequalities with respect to Specht's ratio. Among them, we show that, if $A, Bin mathcal{B(mathcal{H})}$ satisfy in some conditions, it follow...

On Some Improvements of the Jensen Inequality with Some Applications

On Some Tighter Inapproximability Results, Further Improvements

Improved inaproximability results are given, including the best up to date explicit approximation thresholds for bounded occurence sat-issability problems, like MAX-2SAT and E2-LIN-2, and problems in bounded degree graphs, like MIS, Node Cover and MAX CUT. We prove also for the rst time inapproximability of the problem of Sorting by Reversals and display an explicit approximation threshold for ...

Some Improvements on Multipartite Table Methods

This paper presents an unified view of most previous table-lookup-andaddition methods: bipartite tables, SBTM, STAM and multipartite method. This new definition allows a more accurate computation of the error entailed by these methods. Being more general, it also allows an exhaustive design space exploration which has been implemented, and leads to tables smaller than previously published ones ...