Results 31 to 40 of about 1,078 (84)

On the Complexity of Finding a Sun in a Graph [PDF]

open access: yes, 2010
The sun is the graph obtained from a cycle of length even and at least six by adding edges to make the even-indexed vertices pairwise adjacent. Suns play an important role in the study of strongly chordal graphs. A graph is chordal if it does not contain
Hoàng, Chính T.
core   +2 more sources

On the Classical-Quantum Relation of Constants of Motion

open access: yesFrontiers in Physics, 2018
Groenewold-Van Hove theorem suggest that is not always possible to transform classical observables into quantum observables (a process known as quantization) in a way that, for all Hamiltonians, the constants of motion are preserved.
Fabian Belmonte   +3 more
doaj   +1 more source

An improved local search algorithm for 3-SAT [PDF]

open access: yes, 2004
We slightly improve the pruning technique presented in Dantsin et. al.
Brueggemann, T., Kern, W.
core   +5 more sources

Algorithmic Aspects of Some Variants of Domination in Graphs

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
A set S ⊆ V is a dominating set in G if for every u ∈ V \ S, there exists v ∈ S such that (u, v) ∈ E, i.e., N[S] = V . A dominating set S is an isolate dominating set (IDS) if the induced subgraph G[S] has at least one isolated vertex.
Kumar J. Pavan, Reddy P.Venkata Subba
doaj   +1 more source

Implementation of linear minimum area enclosing traingle algorithm [PDF]

open access: yes, 2014
This article has been made available through the Brunel Open Access Publishing Fund.An algorithm which computes the minimum area triangle enclosing a convex polygon in linear time already exists in the literature.
D Goldberg   +3 more
core   +2 more sources

First-Order Methods for Convex Optimization

open access: yesEURO Journal on Computational Optimization, 2021
First-order methods for solving convex optimization problems have been at the forefront of mathematical optimization in the last 20 years. The rapid development of this important class of algorithms is motivated by the success stories reported in various
Pavel Dvurechensky   +2 more
doaj  

On asymptotic estimates for arithmetic cost functions

open access: yes, 1997
Let Or(n) (the cost of n) be the minimum number of arithmetic operations needed to obtain n starting from 1. We prove that Or(n) > log n -log log n for almost all n E N, and, given ?
C. Moreira
semanticscholar   +1 more source

mRLWE-CP-ABE: A revocable CP-ABE for post-quantum cryptography

open access: yesJournal of Mathematical Cryptology
We address the problem of user fast revocation in the lattice-based Ciphertext Policy Attribute-Based Encryption (CP-ABE) by extending the scheme originally introduced by Zhang and Zhang [Zhang J, Zhang Z.
Cianfriglia Marco   +2 more
doaj   +1 more source

Expansion complexity and linear complexity of sequences over finite fields

open access: yes, 2016
The linear complexity is a measure for the unpredictability of a sequence over a finite field and thus for its suitability in cryptography. In 2012, Diem introduced a new figure of merit for cryptographic sequences called expansion complexity.
Mérai, László   +2 more
core   +1 more source

On the pseudorandomness of automatic sequences

open access: yes, 2017
We study the pseudorandomness of automatic sequences in terms of well-distribution and correlation measure of order 2. We detect non-random behavior which can be derived either from the functional equations satisfied by their generating functions or from
Mérai, László, Winterhof, Arne
core   +1 more source

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