An elementary characterization of the category of partly ordered sets

1971 ◽  
Vol 122 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Eric Mendelsohn
Keyword(s):  
Ordered Sets ◽  
Elementary Characterization

scholarly journals A Combinatorial Approach for Small and Strong Formulations of Disjunctive Constraints

2019 ◽  
Vol 44 (3) ◽  
pp. 793-820 ◽  
Author(s):  
Joey Huchette ◽  
Juan Pablo Vielma
Keyword(s):  
Piecewise Linear ◽  
Expressive Power ◽  
Complete Characterization ◽  
Linear Functions ◽  
Mixed Integer ◽  
Ordered Sets ◽  
Special Ordered Sets ◽  
Disjunctive Constraints

A framework is presented for constructing strong mixed-integer programming formulations for logical disjunctive constraints. This approach is a generalization of the logarithmically sized formulations of Vielma and Nemhauser for special ordered sets of type 2 (SOS2) constraints, and a complete characterization of its expressive power is offered. The framework is applied to a variety of disjunctive constraints, producing novel small and strong formulations for outer approximations of multilinear terms, generalizations of special ordered sets, piecewise linear functions over a variety of domains, and obstacle avoidance constraints.

scholarly journals An elementary characterization of the Gini index

2015 ◽  
Vol 74 ◽  
pp. 79-83 ◽  
Author(s):  
L. Plata-Pérez ◽  
J. Sánchez-Pérez ◽  
F. Sánchez-Sánchez
Keyword(s):  
Gini Index ◽  
Elementary Characterization

A Characterization of Partially Ordered Sets with Linear Discrepancy Equal to 2

Order ◽  
2007 ◽  
Vol 24 (3) ◽  
pp. 139-153 ◽  
Author(s):  
David M. Howard ◽  
Mitchel T. Keller ◽  
Stephen J. Young
Keyword(s):  
Partially Ordered Sets ◽  
Ordered Sets ◽  
Linear Discrepancy ◽  
Partially Ordered

On an elementary characterization of the increasing convex ordering, by an application

1994 ◽  
Vol 31 (3) ◽  
pp. 834-840 ◽  
Author(s):  
Armand M. Makowski
Keyword(s):  
Short Proof ◽  
Probability Distributions ◽  
Short Note ◽  
Comparison Result ◽  
Convex Ordering ◽  
Simple Characterization ◽  
Increasing Convex Ordering ◽  
Elementary Characterization

In this short note, we present a simple characterization of the increasing convex ordering on the set of probability distributions on ℝ. We show its usefulness by providing a very short proof of a comparison result for M/GI/1 queues due to Daley and Rolski, and obtained by completely different means.

scholarly journals The elementary characterization of anthill clay for composite materials

2020 ◽  
Author(s):  
Suresh Aluvihara ◽  
C.S. Kalpage ◽  
P.W.S.K. Bandaranayake
Keyword(s):  
Mechanical Characteristics ◽  
Ph Value ◽  
Industrial Applications ◽  
Raw Material ◽  
Advanced Material ◽  
Standard Procedures ◽  
Soil Clay ◽  
Water Treatments ◽  
Elementary Characterization

Anthill clay is a distinct soil/clay genre among common soil types because of the extraordinary stockpiling method. The small particles are carried in and erected an anthill by a small creature that it is called as termite. In generally, clay is a conspicuous raw material for industrial applications greatly and the assay of expediencies of anthill clay for advanced material applications were the prospects of the existing research. Carefully collected anthill clay samples were characterized under the physically and chemically using standard procedures and instruments. The mechanical characteristics of prepared bricks from anthill clays under 8000C were investigated. As the major outcomes of the existing investigation of raw clays, there were looked to 5.56 of PH value, 15% of natural moisture content, gap graded and symmetrically distributed arrangement of grains, 60% finer particle percentage (<0.075mm) according to the weight, composition of Fe, Ti, Ba and K based compounds including Fe minerals with large sorption capacity for other metals. In addition that 25% of water absorption, 2.62 of bulk specific gravity, 65% of apparent porosity, 21 Mpa compressive strength and 0.4 Mpa splitting tensile strength were observed with respect to the bricks which were prepared from the anthill clay. Based on the behaviors of such anthill clay it should be an influential material in the advanced material manufacturing in the industrial purposes such as the water treatments, rigid materials, catalysts and refractors.

scholarly journals Elementary characterization of metals in lipsticks by EDXRF

2021 ◽  
Vol 9 (1A) ◽  
Author(s):  
Catarina Alzira Montenegro Peddis Torres ◽  
Sergei Anatolyevich Paschuk ◽  
Danielle Cristine Narloch ◽  
Janine Nicolosi Corrêa
Keyword(s):  
Elementary Characterization

scholarly journals A characterization of finite Stone pseudocomplemented ordered sets

1996 ◽  
Vol 121 (2) ◽  
pp. 117-120
Author(s):  
Radomír Halaš
Keyword(s):  
Ordered Sets

On an elementary characterization of the increasing convex ordering, by an application

1994 ◽  
Vol 31 (03) ◽  
pp. 834-840
Author(s):  
Armand M. Makowski
Keyword(s):  
Short Proof ◽  
Probability Distributions ◽  
Short Note ◽  
Comparison Result ◽  
Convex Ordering ◽  
Simple Characterization ◽  
Increasing Convex Ordering ◽  
Elementary Characterization

In this short note, we present a simple characterization of the increasing convex ordering on the set of probability distributions on ℝ. We show its usefulness by providing a very short proof of a comparison result for M/GI/1 queues due to Daley and Rolski, and obtained by completely different means.

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