Results 31 to 40 of about 2,985,813 (306)

Interval matrices with Monge property [PDF]

open access: yesApplications of Mathematics, 2020
We generalize Monge property of real matrices for interval matrices. We define two classes of interval matrices with Monge property - in a strong and in a weak sense. We study fundamental properties of both classes. We show several different characterizations of the strong Monge property.
openaire   +2 more sources

An Algorithm for Checking Regularity of Interval Matrices [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 1999
An algorithm for proving regularity or singularity of an interval matrix \(A\) is given. The method consists in considering any connecting component of the solution set of the system of interval equations \(Ax= b\) where \(b\) is a special real vector, and using the fact that \(A\) is regular iff the component is bounded. The boundedness can be checked
Christian Jansson, Jiri Rohn
openaire   +2 more sources

The Energy of Interval Valued Neutrosophic Matrix in Decision-Making to Select the Manager for the Company Project [PDF]

open access: yesOperations Research and Decisions, 2023
The concept of energy in graphs and matrices is used effectively in all application areas. The energy of the matrix is an extension of graph energy. The usage of the energy idea in neutrosophic matrices makes it more flexible and applicable in multi ...
Jeni, Seles, Martina Donbosco   +1 more
doaj  

Detection of Atrial Fibrillation Episodes based on 3D Algebraic Relationships between Cardiac Intervals

open access: yesDiagnostics, 2022
In this study, the notion of perfect matrices of Lagrange differences is employed to detect atrial fibrillation episodes based on three ECG parameters (JT interval, QRS interval, RR interval).
Naseha Wafa Qammar   +4 more
doaj   +1 more source

Trace-Inequalities and Matrix-Convex Functions

open access: yesFixed Point Theory and Applications, 2010
A real-valued continuous function f(t) on an interval (α,β) gives rise to a map X↦f(X) via functional calculus from the convex set of n×n Hermitian matrices all of whose eigenvalues belong to the interval. Since the subpace of
Tsuyoshi Ando
doaj   +2 more sources

Intervals of totally nonnegative matrices

open access: yesLinear Algebra and its Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adm, Mohammad, Garloff, Jürgen
openaire   +4 more sources

Fuzzy Interval Matrices, Neutrosophic Interval Matrices and their Applications

open access: yes, 2006
304 ...
Kandasamy, W. B. Vasantha   +1 more
openaire   +2 more sources

Bounds on Eigenvalues of Interval Matrices [PDF]

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1998
AbstractWe describe a rectangle in the complex plane enclosing all eigenvalues of an interval matrix. We give theoretical bounds (Theorem 1) that are exact for symmetric or skew‐symmetric matrices, and practical bounds (Theorem 2) requiring evaluation of 4 minimal or maximal eigenvalues and 2 spectral radii of symmetric matrices.
openaire   +1 more source

An interval Kalman filter enhanced by lowering the covariance matrix upper bound

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2021
This paper proposes a variance upper bound based interval Kalman filter that enhances the interval Kalman filter based on the same principle proposed by Tran et al. (2017) for uncertain discrete time linear models.
Tran Tuan Anh   +3 more
doaj   +1 more source

ASSIST: Refinement of a Benefits Navigator Intervention Among Low‐Income Pediatric Oncology Families

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Children with cancer living in poverty experience worse survival and quality of life. Interventions connecting low‐income families to benefits (e.g., Supplemental Nutrition Assistance Program [SNAP] improve health outcomes; yet nearly 50% of SNAP‐eligible pediatric oncology families are unenrolled.
Puja J. Umaretiya   +11 more
wiley   +1 more source

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