Results 11 to 20 of about 1,177,096 (136)

Forward Order Law for the Reflexive Inner Inverse of Multiple Matrix Products

open access: yesAxioms, 2022
The generalized inverse has numerous important applications in aspects of the theoretic research of matrices and statistics. One of the core problems of generalized inverse is finding the necessary and sufficient conditions for the reverse (or the ...
Wanna Zhou, Zhiping Xiong, Yingying Qin
doaj   +1 more source

Numerical investigation of abdominal aortic aneurysm hemodynamics using the reduced unified continuum formulation for vascular fluid-structure interaction

open access: yesForces in Mechanics, 2022
We recently demonstrated the reduction of the unified continuum and variational multiscale formulation to a computationally efficient fluid-structure interaction (FSI) formulation via three modeling assumptions pertaining to the vascular wall. Similar to
Ingrid S. Lan   +3 more
doaj   +1 more source

Schur-convexity of the Extended Mean Values [PDF]

open access: yes, 2001
In this article, the Schur-convexity of the extended mean values are proved. Consequently, an inequality between the logarithmic mean values and the identity (exponential) mean values is ...
Qi, Feng
core   +3 more sources

A smooth control allocation method for a distributed electric propulsion VTOL aircraft test platform

open access: yesIET Control Theory & Applications, 2023
Distributed electronic propulsion (DEP) aircraft with vertical take‐off and landing (VTOL) ability mostly equipped with multiple redundant tiltable propulsors, which are used to provide not only thrusts, but also control torque in all flight mode.
Zijie Qin, Kun Liu, Xi Zhao
doaj   +1 more source

The Forward Order Law for Least Squareg-Inverse of Multiple Matrix Products

open access: yesMathematics, 2019
The generalized inverse has many important applications in the aspects of the theoretic research of matrices and statistics. One of the core problems of the generalized inverse is finding the necessary and sufficient conditions of the forward order laws ...
Zhiping Xiong, Zhongshan Liu
doaj   +1 more source

Computational methods for Cahn-Hilliard variational inequalities [PDF]

open access: yes, 2012
We consider the non-standard fourth order parabolic Cahn-Hilliard variational inequality with constant as well as non-constant diffusional mobility. We propose a primal-dual active set method as solution technique for the discrete variational inequality ...
Butz, Martin
core   +1 more source

Jacobi-Trudy formula for generalized Schur polynomials [PDF]

open access: yes, 2014
Jacobi-Trudy formula for a generalization of Schur polynomials related to any sequence of orthogonal polynomials in one variable is given.
A.N. Sergeev (7160591)   +1 more
core   +5 more sources

Resistance Distance and Kirchhoff Index of Generalized Subdivision-Vertex and Subdivision-Edge Corona for Graphs

open access: yesIEEE Access, 2019
Let G be a connected graph. The subdivision graph S(G) of a graph (G) is the graph obtained by inserting a new vertex into every edge of G. The set of such new vertices is denoted by I(G).
Qun Liu
doaj   +1 more source

Some Results on the Drazin Inverse of a Modified Matrix with New Conditions

open access: yesInternational 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
doaj   +2 more sources

Ranks of a Constrained Hermitian Matrix Expression with Applications

open access: yesJournal of Applied Mathematics, 2013
We establish the formulas of the maximal and minimal ranks of the quaternion Hermitian matrix expression C4−A4XA4∗ where X is a Hermitian solution to quaternion matrix equations A1X=C1, XB1=C2, and A3XA3*=C3.
Shao-Wen Yu
doaj   +1 more source

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