Results 21 to 30 of about 1,819 (238)

Limits of Latin squares

Discrete Analysis, 2023
Limits of Latin squares, Discrete Analysis 2023:8, 66 pp. There has been a great deal of work over the last fifteen to twenty years on the theme of continuous limits of discrete combinatorial objects. In particular, any sequence of graphs of increasing
Frederik Garbe, Robert Hancock, Jan Hladky, Maryam Sharifzadeh   +3 more
doaj   +1 more source

Combined Matrix of a Tridiagonal Toeplitz Matrix

Axioms
In this work, combined matrices of tridiagonal Toeplitz matrices are studied. The combined matrix is known as the Relative Gain Array in control theory.
Begoña Cantó, Rafael Cantó, Ana Maria Urbano   +2 more
doaj   +1 more source

Distributed Stochastic Subgradient Projection Algorithms Based on Weight-Balancing over Time-Varying Directed Graphs

Complexity, 2019
We consider a distributed constrained optimization problem over graphs, where cost function of each agent is private. Moreover, we assume that the graphs are time-varying and directed.
Junlong Zhu, Ping Xie, Mingchuan Zhang, Ruijuan Zheng, Ling Xing, Qingtao Wu   +5 more
doaj   +1 more source

On a fine localization of the Mathieu azimuthal numbers by Cassini ovals

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The study is devoted to numerical and analytical problems concerning generating periodic and antiperiodic solutions of the angular (circumferential) Mathieu equation obtained for the circumferential harmonics of an elliptic cylinder.
Yuri Nikolaevich Radayev, Margarita Vladimirovna Taranova   +1 more
doaj   +1 more source

Stability Conditions in Multiple-Input Multiple-Output Systems

Axioms
This paper investigates the stabilization of unstable third-order Multiple-Input Multiple-Output (MIMO) systems whose interaction structure is described by a doubly stochastic combined matrix, also known as the Relative Gain Array (RGA).
Macarena Boix, Begoña Cantó
doaj   +1 more source

Spectra universally realizable by doubly stochastic matrices

Special Matrices, 2018
A list of complex numbers Λ = { λ1, . . . , λn} is said to be realizable if it is the spectrum of an entrywise nonnegative matrix, and universally realizable if there exists a nonnegative matrix with spectrum Λ for each Jordan canonical form associated ...
Collao Macarena, Salas Mario, Soto Ricardo L.   +2 more
doaj   +1 more source

Variations in the sub-defect of doubly substochastic matrices

Special Matrices
The sub-defect of a doubly stochastic matrix AA, denoted as sd(A)=⌈n−sum(A)⌉sd\left(A)=\lceil n-{\rm{sum}}\left(A)\rceil , is defined as the minimum number of rows and columns required to be added to transform the doubly substochastic matrix into a ...
Cao Lei, Eshkaftaki Ali Bayati, Koyuncu Selcuk   +2 more
doaj   +1 more source

Frobenius normal forms of doubly stochastic matrices

Special Matrices, 2019
An elementary proof of a fundamental result on doubly stochastic matrices in Frobenius normal form is given. This result is used to establish several well-known results concerning permutations, including a theorem due to Ruffini.
Paparella Pietro
doaj   +1 more source

An asymptotic approximation for the permanent of a doubly stochastic matrix [PDF]

Journal of Statistical Computation and Simulation, 2012
One ...
openaire   +2 more sources

Nash Equilibrium Seeking with Non-doubly Stochastic Communication Weight Matrix [PDF]

EAI Endorsed Transactions on Collaborative Computing, 2017
A distributed Nash equilibrium seeking algorithm is presented for networked games. We assume an incomplete information available to each player about the other players' actions. The players communicate over a strongly connected digraph to send/receive the estimates of the other players' actions to/from the other local players according to a gossip ...
Farzad Salehisadaghiani, Lacra Pavel
openaire   +4 more sources