Results 31 to 40 of about 99,998 (314)
About Directed d-Convex Simple Graphs [PDF]
Computer Science Journal of Moldova, 2008 In this article we introduce a pseudo-metric on directed graphs, which forms there a family of convex sets. The graphs without d-convex sets, except empty set, sets of one vertex and set of all vertexes, are called d-convex simple.
Nadejda Sur, Sergiu Cataranciuc
doaj
Convex approximations for complete integer recourse models [PDF]
, 2002 We consider convex approximations of the expected value function of a two-stage integer recourse problem. The convex approximations are obtained by perturbing the distribution of the random right-hand side vector.
Vlerk, Maarten H. van der +2 more
core +1 more source
Contractions of Convex Sets [PDF]
Proceedings of the American Mathematical Society, 1977 In this paper it is shown that, in a vector space over any ordered field, a noninfinitesimal contraction of a convex set K can be written as an intersection of translates of K .
openaire +2 more sources
Ceylon Journal of Science, 2021 The definition of the convex hull of a set of points is the smallest convex set containing all the points. Many algorithms have been proposed with the worst case time complexity is equal to O (n log n).
K. R. Wijeweera, S. R. Kodituwakku
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Discrete Applied Mathematics, 1994 A hyperplane \(H\) separates a set \(A\) from a collection \({\mathcal K}\) of sets in \(\mathbb{R}^ d\) if \(A\) is contained in one of closed halfspaces determined by \(H\) and every member \(K \in {\mathcal K}\) is contained in the complementary closed halfspace.
Jurek Czyzowicz +2 more
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Known Results and Open Problems in Hypercomplex Convexity
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014 A subject, which is treated in this review, combines in one bundle some questions of convex, hypercomplex analysis, probability theory and geometry.
Zelinskii Yuri
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The External Estimate of the Compact Set by Lebesgue Set of the Convex Function [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2020 The finite-dimensional problem of embedding a given compact D ⊂ R p into the lower Lebesgue set G(α) = {y ∈ R p : f(y) 6 α} of the convex function f(·) with the smallest value of α due to the offset of D is considered.
Abramova, Veronika V. +2 more
doaj +1 more source
Core equivalence theorems for infinite convex games [PDF]
, 1996 We show that the core of a continuous convex game on a measurable space of players is a von Neumann-Morgenstern stable set. We also extend the definition of the Mas-Colell bargaining set to games with a measurable space of players, and show that for ...
Shitovitz, Benyamin +3 more
core
The Electronic Journal of CombinatoricsWe introduce a novel definition of orientation on the triples of a family of pairwise intersecting planar convex sets and study its properties. In particular, we compare it to other systems of orientations on triples that satisfy a so-called interiority condition: $\circlearrowleft(ABD)=\circlearrowleft(BCD)=\circlearrowleft(CAD)=1$ imply ...
Ágoston, Péter +3 more
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Clinical Validation of Plasma p‐217tau in Neurological Diseases
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Plasma p‐217tau is a minimally invasive but specific biomarker for diagnosing Alzheimer's disease (AD). However, its disease specificity remains to be clinically evaluated. We validated the reliability of the p‐217tau biomarker in 12 other neurological diseases.
Takeshi Kawarabayashi +13 more
wiley +1 more source