Results 81 to 90 of about 640 (203)
Journal of Geophysical Research: Atmospheres, Volume 129, Issue 9, 16 May 2024.Abstract The paper presents a new method for the decomposition of the horizontal wind divergence among linear waves on the sphere: inertia‐gravity (IG), mixed Rossby‐gravity (MRG), Kelvin and Rossby waves. The work is motivated by the need to quantify the vertical velocity and momentum fluxes in the tropics where the distinction between the Rossby and ...
Valentino Neduhal +4 more
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Analysis of the descriptor Roesser model with the use of the Drazin inverse
International Journal of Applied Mathematics and Computer Science, 2015 A method of analysis for a class of descriptor 2D discrete-time linear systems described by the Roesser model with a regular pencil is proposed. The method is based on the transformation of the model to a special form with the use of elementary row and ...
Kaczorek Tadeusz
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A Seventh-Order Scheme for Computing the Generalized Drazin Inverse
Mathematics, 2019 One of the most important generalized inverses is the Drazin inverse, which is defined for square matrices having an index. The objective of this work is to investigate and present a computational tool in the form of an iterative method for computing ...
Dilan Ahmed +3 more
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Acqui‐hires: Redeployment and retention of human capital post‐acquisition
Strategic Management Journal, Volume 45, Issue 2, Page 205-237, February 2024.Abstract Research Summary Acqui‐hires are now a prevalent strategic mechanism by which firms obtain talented human resources. They differ from traditional acquisitions in that they are always integrated and the focus is the people, not the product or service.
Beril Boyacıoğlu +2 more
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Linear Algebra and its Applications, 1978 AbstractA new type of generalized inverse is defined which is a weakened form of the Drazin inverse. These new inverses are called (d)-inverses. Basic properties of (d)-inverses are developed. It is shown that (d)-inverses are often easier to compute than Drazin inverses and can frequently be used in place of the Drazin inverse when studying systems of
Campbell, Stephen L., Meyer, Carl D.
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Ordered Left Almost ⋇‐Semihypergroups Based on Fuzzy Sets
Journal of Mathematics, Volume 2024, Issue 1, 2024.The concept of an involution or anti‐involution is a self‐inverse linear mapping that plays a prominent role in the theory of algebraic structures, particularly rings, hyperrings, ordered semigroups, and ordered semihypergroups. Nowadays, the study of involutions in ordered hyperstructures is a particular area of research in the field of hyperstructure
Nabilah Abughazalah +2 more
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Some Results on the Drazin Inverse of a Modified Matrix with New Conditions
International Journal of Analysis and Applications, 2014 In this article, we consider representations of the Drazin inverse of a modified matrix M = A−CDdB with the generalized Schur complement Z = D − BAdC under different conditions given in recent articles on the subject.
Abdul Shakoor, Hu Yang, Ilyas Ali
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Linear Algebra and its Applications, 1980 AbstractA characterization of nonnegative matrices which have a nonnegative Drazin inverse is given. A necessary and sufficient condition for a real matrix to have a nonnegative Drazin inverse is also presented.
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, 2005 In this paper, we investigate the condition number of Drazin inverse and Drazin-inverse solution of singular linear system Ax=b, where A is a n×n rank-deficient matrix and b a real vector of size n, x a real vector.
Wei, Yimin, Diao, Huaian
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Semigroup Generation Theorems of Anti‐Triangular Operator Matrices and Their Application
Journal of Mathematics, Volume 2024, Issue 1, 2024.This paper deals with the semigroup generation of anti‐triangular operator matrices M with unbounded entries in Hilbert space. Based on the space decomposition, some necessary and sufficient conditions are given for M to generate contraction semigroups.
Jie Liu +4 more
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