Results 21 to 30 of about 1,055,399 (260)

A combinatorial problem on a directed graph

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2016
We consider two options for a particle’s entire journey through a certaindirectedgraph. Both options involve a random assignment to the journey route to be followed. We are interested in the option that offers, on average, the shortest route. Therefore, we determine the average journey length for each of the two options.
Marrero, Osvaldo, Pasles, PaulC.
openaire   +5 more sources

Design and Implementation mDPBL Teaching Approach to Improve Students' Creative Thinking Skill

open access: yesJournal of Education and Teaching, 2022
The majority of learning in Universities is adopting the Direct Instructional (DI) approach. The DI approach is a lecturer-centered approach. Howover, this approach tends to be boring for the students as it is very tedious and dominated by the lecturer ...
Yupie Kusumawati   +3 more
doaj   +1 more source

Decomposition of Directed Graphs and the Turán Problem [PDF]

open access: yesUkrainian Mathematical Journal, 2014
17 ...
Novikov, B.V.   +2 more
openaire   +3 more sources

To the solution of geoelectric problem on a direct current based on the global decomposition

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
The solution of a three-dimensional problem of geoelectric on a direct current is discussed. The solution of this task is constructed on the basis of global decomposition (GDAM). The algorithm consists in iterative reconstruction of the decision from two
N. A. Sevostianov, M. N. Yudin
doaj   +1 more source

The directed subgraph homeomorphism problem

open access: yesTheoretical Computer Science, 1980
AbstractThe set of pattern graphs for which the fixed directed subgraph homeomorphism problem is NP-complete is characterized. A polynomial time algorithm is given for the remaining cases. The restricted problem where the input graph is a directed acyclic graph is in polynomial time for all pattern graphs and an algorithm is given.
Steven Fortune   +2 more
openaire   +3 more sources

A Construction for the Hat Problem on a Directed Graph [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2012
A team of $n$ players plays the following game. After a strategy session, each player is randomly fitted with a blue or red hat. Then, without further communication, everybody can try to guess simultaneously his own hat color by looking at the hat colors of the other players.
Rani Hod, Marcin Krzywkowski
openaire   +3 more sources

The Diffusion Equation Involving the Dunkl–Laplacian Operator in a Punctured Domain

open access: yesFractal and Fractional
The purpose of this paper is to establish solvability results for both direct and inverse problems associated with the diffusion equation involving the Dunkl–Laplacian operator in a punctured domain.
Bayan Bekbolat   +2 more
doaj   +1 more source

A theory of hydrodynamic tomography

open access: yesГеофизический журнал, 2015
A problem of the forecast of spatial distribution of effective filtration resistance of permeable layer based on tomography principles is under consideration.
A.I. Kobrunov
doaj   +1 more source

An Approach to Solving Direct and Inverse Scattering Problems for Non-Selfadjoint Schrödinger Operators on a Half-Line

open access: yesMathematics, 2023
In this paper, an approach to solving direct and inverse scattering problems on the half-line for a one-dimensional Schrödinger equation with a complex-valued potential that is exponentially decreasing at infinity is developed.
Vladislav V. Kravchenko   +1 more
doaj   +1 more source

ON THE MATHEMATICS PROBLEM OF MULTILAYERED DIELECTRIC SYSTEMS IN THE CLASSICAL ELECTRODYNAMIC

open access: yesРоссийский технологический журнал, 2017
Solving numerous problems of wave propagation in inhomogeneous medium in optics and radio-physics involves layered media models. Unfortunately even for two-layer systems there is no known exhaustive classification of such systems presenting their “phase ...
Yu. I. Hudak
doaj   +1 more source

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