نتایج جستجو برای: valuations

تعداد نتایج: 3886  

2017
Tim Roughgarden Inbal Talgam-Cohen Jan Vondrák

Computational and economic results suggest that social welfare maximization and combinatorial auction design are much easier when bidders’ valuations satisfy the “gross substitutes” condition. The goal of this paper is to evaluate rigorously the folklore belief that the main take-aways from these results remain valid in settings where the gross substitutes condition holds only approximately. We...

Journal: :Mathematical Structures in Computer Science 2005
Jean Goubault-Larrecq

Continuous valuations have been proposed by several authors as a way of modeling probabilistic non-determinism in programming language semantics. Let (X;O) be a topological space. A quasi-simple valuation on X is the sup of a directed family of simple valuations. We show that quasisimple valuations are exactly those valuations that extend to continuous valuations to the Alexandroff topology on ...

Journal: :Transactions of the American Mathematical Society 2015

2011
Ken Kamano

We investigate 3-adic valuations of generalized harmonic numbers H n . These valuations are completely determined by the 3-adic expansion of n. Moreover, we also give 3-adic valuations of generalized alternating harmonic numbers.

Journal: :J. Comb. Theory, Ser. A 2005
Bart De Bruyn Pieter Vandecasteele

Valuations were introduced in De Bruyn andVandecasteele (Valuations of near polygons, preprint, 2004) as a very important tool for classifying near polygons. In the present paperwe study valuations of dual polar spaces.Wewill introduce the class of theSDPS-valuations and characterize these valuations. We will show that a valuation of a finite thick dual polar space is the extension of an SDPS-v...

Journal: :Journal of Symbolic Computation 2002

Journal: :Advances in Mathematics 2004

Journal: :The Journal of Symbolic Logic 2015

Journal: :American Journal of Mathematics 2015

Journal: :Journal of Algebraic Geometry 2018

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