Results 61 to 70 of about 3,375,631 (334)

Presolving linear bilevel optimization problems

open access: yesEURO Journal on Computational Optimization, 2021
Linear bilevel optimization problems are known to be strongly NP-hard and the computational techniques to solve these problems are often motivated by techniques from single-level mixed-integer optimization.
Thomas Kleinert   +3 more
doaj   +1 more source

DISCRETE MATHEMATICS TEXTBOOK

open access: yes, 2016
The textbook contains the basic theoretical information of the discrete mathematics course, examples of assignments for each topic of the discipline and assignments for self-fulfillment.
O. Porkurian, A. Timoshyn, V. Davydenko
openaire   +1 more source

Short-Distance Cutoffs in Curved Space

open access: yes, 2004
It is shown that space-time may possess the differentiability properties of manifolds as well as the ultraviolet finiteness properties of lattices. Namely, if a field's amplitudes are given on any sufficiently dense set of discrete points this could ...
Kempf, Achim
core   +2 more sources

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

The competition number of a generalized line graph is at most two [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
Graph ...
Boram Park, Yoshio Sano
doaj   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp   +7 more
wiley   +1 more source

Cellular manufacturing problem - A graph theoretic approach

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
The cell formation problem which arises in cellular manufacturing can be formulated in graph theoretic terms. The input for a cellular manufacturing problem consists of a set X of m machines and a set of Y of p parts and an m × p matrix A = (aij), where ...
J. SARAL   +3 more
doaj   +1 more source

A Relationship Between Problem Solving Ability and Students' Mathematical Thinking [PDF]

open access: yes, 2017
This research have a purpose to know is there an influence of problem solving abilty to students mathematical thinking, and to know how strong problem solving ability affect students mathematical thinking.
Delima, N. (Nita)
core  

Energy Minimization of Discrete Protein Titration State Models Using Graph Theory

open access: yes, 2016
There are several applications in computational biophysics which require the optimization of discrete interacting states; e.g., amino acid titration states, ligand oxidation states, or discrete rotamer angles. Such optimization can be very time-consuming
Baker, Nathan A.   +4 more
core   +2 more sources

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

open access: yesAdvanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan   +14 more
wiley   +1 more source

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