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A better algorithm for random k-SAT [PDF]

open access: yes, 2009
Let Φ be a uniformly distributed random k-SAT formula with n variables and m clauses. We present a polynomial time algorithm that finds a satisfying assignment of Φ with high probability for constraint densities m/n < (1 − εk)2k ln(k)/k, where εk → 0 ...
Coja-Oghlan, Amin, Amin Coja-Oghlan
core   +1 more source

Using Volunteer Computing to Study Some Features of Diagonal Latin Squares

open access: yesOpen Engineering, 2017
In this research, the study concerns around several features of diagonal Latin squares (DLSs) of small order. Authors of the study suggest an algorithm for computing minimal and maximal numbers of transversals of DLSs.
Vatutin Eduard   +3 more
doaj   +1 more source

Generation of Synchronizing State Machines from a Transition System: A Region–Based Approach

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
Transition systems (TSs) and Petri nets (PNs) are important models of computation ubiquitous in formal methods for modeling systems. A crucial problem is how to extract, from a given TS, a PN whose reachability graph is equivalent (with a suitable notion
Teren Viktor   +2 more
doaj   +1 more source

The state of SAT

open access: yesDiscrete Applied Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Henry A. Kautz, Bart Selman
openaire   +1 more source

Solving equations over small unary algebras [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
We consider the problem of solving a system of polynomial equations over fixed algebra $A$ which we call MPolSat($A$). We restrict ourselves to unary algebras and give a partial characterization of complexity of MPolSat($A$). We isolate a preorder $P(A)$
Przemyslaw Broniek
doaj   +1 more source

A SAT Approach to Branchwidth

open access: yes, 2016
Branch decomposition is a prominent method for structurally decomposing a graph, hypergraph or CNF formula. The width of a branch decomposition provides a measure of how well the object is decomposed.
Ordyniak, Sebastian   +2 more
core   +4 more sources

Correlation Between the Crude Extracellular Secretion by Shigella dysenteriae and Destruction of RD and L20B Cell Lines, A Simple Sign as Alternative Treatments for Cancer Tumors through Cytotoxicity

open access: yesJournal of Pure and Applied Microbiology, 2018
The clinical pathogenic strains of S. dysenteriae in this study were initially diagnosed as enteroinvasive E. coli due to the high similarity in characterization and pathogenic mechanism.
Nagham Sh. Alattar   +2 more
doaj   +1 more source

Why almost all satisfiable $k$-CNF formulas are easy [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
Finding a satisfying assignment for a $k$-CNF formula $(k \geq 3)$, assuming such exists, is a notoriously hard problem. In this work we consider the uniform distribution over satisfiable $k$-CNF formulas with a linear number of clauses (clause-variable ...
Amin Coja-Oghlan   +2 more
doaj   +1 more source

SAT-to-SAT in QBFEval 2016.

open access: yesCEUR Workshop Proceedings, 2016
In this short paper, we describe QBF solvers from the latest QBFEval that were based on the SAT-To-SAT solver. We present the main ideas behind the solvers and discuss their strengths and weaknesses.
Janhunen Tomi   +2 more
openaire   +6 more sources

A retrospective study of the profile of female sterilization failure from a tertiary referral center - a review over 5 years and its clinicopathological correlation

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2023
Background: Female sterilization is the most accepted method of contraception in India. Almost 5–6 million female sterilization procedures are performed annually contributing to 98% of all sterilizations and roughly 62% of all contraceptive use. Although,
Mayadevi Brahmanandan   +2 more
doaj   +1 more source

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