Results 11 to 20 of about 345,612 (268)

General Randić matrix and general Randić incidence matrix

open access: yesDiscrete Applied Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wai Chee Shiu
exaly   +3 more sources

The assembly sequences modeling using graph incidence matrix [PDF]

open access: yesОмский научный вестник, 2020
The article discusses the problem solution of computer aided determination of the precision axisymmetric products assembly sequence. The aim of this work is to consider the possibility of using a directed assembly graph, in particular, an adjacency ...
I. A. Volkov   +3 more
doaj   +1 more source

Компьютерный эксперимент в преподавании математических дисциплин

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
Обсуждается методика использования компьютера при изучении вузовских курсов «Дискретная математика» и «Теория графов». В работе показывается применение пакета символьных вычислений Maple для обнаружения свойств основных матриц графа и экспериментальной ...
Горюшкин, А.П.
doaj   +1 more source

Asymptotics for Incidence Matrix Classes [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2006
We define incidence matrices to be zero-one matrices with no zero rows or columns. We are interested in counting incidence matrices with a given number of ones, irrespective of the number of rows or columns. A classification of incidence matrices is considered for which conditions of symmetry by transposition, having no repeated rows/columns, or ...
Peter J. Cameron   +2 more
openaire   +3 more sources

The inverse of the incidence matrix of a unicyclic graph [PDF]

open access: yesLinear and Multilinear Algebra, 2022
The vertex-edge incidence matrix of a (connected) unicyclic graph G is a square matrix which is invertible if and only if the cycle of G is an odd cycle. A combinatorial formula of the inverse of the incidence matrix of an odd unicyclic graph was known.
Hessert, Ryan, Mallik, Sudipta
openaire   +2 more sources

Reliability assessment of island multi‐energy microgrids

open access: yesEnergy Conversion and Economics, 2021
Multi‐energy microgrids could result in more flexibility and increase reliability by interconnecting networks. Electricity and gas networks exhibit very different dynamic behaviours in response to a fault or failure.
Marcos Santos   +4 more
doaj   +1 more source

Decoupling and dimension reduction method for distribution system security region

open access: yesIET Energy Systems Integration, 2023
The application of the security region methodology in a practical distribution system with large scale normally requires large computer memory and high computation time. To overcome this problem, this article proposes a decoupling and dimension reduction
Jun Xiao, Yuhao Fan, Xun Jiang
doaj   +1 more source

Evaluating Popular Statistical Properties of Incomplete Block Designs: A MATLAB Program Approach

open access: yesMathematics, 2021
Evaluating the statistical properties of a semi-Latin square, and in general, an incomplete block design, is vital in determining the usefulness of the design for experimentation.
Emmanuel Ikechukwu Mba   +2 more
doaj   +1 more source

Incidence Matrix Games [PDF]

open access: yes, 1997
We consider the two-person zero-sum game in which the strategy sets for Players I and II consist of the vertices and the edges of a directed graph respectively. If Player I chooses vertex v and Player II chooses edge e, then the payoff is zero if v and e are not incident and otherwise it is 1 or -1 according as e originates or terminates at v.
Bapat, R., Tijs, S.H.
openaire   +3 more sources

The singular value decomposition method of improved incidence matrix for isomorphism identification of epicyclic gear trains [PDF]

open access: yesMechanical Sciences, 2022
The epicyclic gear train (EGT) is an advanced gear transmission mechanism, which is widely applied in drive systems. It is of great significance to eliminate the same structure in the type synthesis of EGTs.
M. Zhou   +5 more
doaj   +1 more source

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