Results 31 to 40 of about 1,548,165 (297)
Bounds on Real Eigenvalues and Singular Values of Interval Matrices [PDF]
, 2010 International audienceWe study bounds on real eigenvalues of interval matrices, and our aim is to develop fast computable formulae that produce as-sharp-as-possible bounds. We consider two cases: general and symmetric interval matrices.
Milan Hladík +5 more
core +1 more source
Bounds on eigenvalues of real symmetric interval matrices for αBB method in global optimization [PDF]
Yugoslav Journal of Operations ResearchIn this paper, we investigate bounds on eigenvalues of real symmetric interval matrices. We present a method that computes bounds on eigenvalues of real symmetric interval matrices.
Zerrouki Djamel, Ouanes Mohand
doaj +1 more source
Interval-valued Fuzzy Matrices with Interval-valued Fuzzy Rows and Columns
Fuzzy Information and Engineering, 2015 Fuzzy matrix (FM) is a very important topic of fuzzy algebra. In FM, the elements belong to the unit interval [0,1]. When the elements of FM are the subintervals of the unit interval [0,1], then the FM is known as interval-valued fuzzy matrix (IVFM).
Madhumangal Pal
doaj +1 more source
An Algorithm for Checking Regularity of Interval Matrices [PDF]
SIAM Journal on Matrix Analysis and Applications, 1999 Checking regularity (or singularity) of interval matrices is a known NP-hard problem. In this paper a general algorithm for checking regularity/singularity is presented which is not a priori exponential. The algorithm is based on a theoretical result according to which regularity may be judged from any single component of the solution set of an ...
Christian Jansson, Jiri Rohn
openaire +3 more sources
The Energy of Interval Valued Neutrosophic Matrix in Decision-Making to Select the Manager for the Company Project [PDF]
Operations 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
Trace-Inequalities and Matrix-Convex Functions
Fixed 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
Linear Algebra and its Applications, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adm, Mohammad, Garloff, Jürgen
openaire +4 more sources
Diagnostics, 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
Bounds on Eigenvalues of Interval Matrices [PDF]
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1998 Abstract We 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
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source