Results 81 to 90 of about 10,041,383 (202)

Generalized inverses over integral domains. II. group inverses and Drazin inverses

Linear Algebra and its Applications, 1991
This is a continuation of an earlier paper by the authors [ibid. 140, 181--196 (1990; Zbl 0712.15004)] on generalized inverses over integral domains. The main results consist of necessary and sufficient conditions for the existence of a group inverse, a new formula for a group inverse when it exists, and necessary and sufficient conditions for the ...
Manjunatha Prasad, K., Bhaskara Rao, K.P.S., Bapat, R.B.   +2 more
openaire   +1 more source

Antea Group Archeologie 2019/67

, 2021
Antea Group projectnummer 432648 ARCHIS zaaknummer 4697972100 Antea Group heeft in april 2019 een archeologisch bureauonderzoek uitgevoerd voor de aanleg van een warmteleiding ten noorden van De Lier in de gemeente Westland.
Colijn, J.E. (Antea Group)
core   +1 more source

Phenotype Correlations of Neurological Manifestations in Wolfram Syndrome: Predictive Modeling in a Spanish Cohort

Diagnostics
Background: Wolfram syndrome (WS) is an ultrarare neuroendocrine disorder caused by pathogenic variants in WFS1, frequently leading to progressive neurological, autonomic, and cognitive impairment.
Gema Esteban-Bueno, Luisa-María Botella, Juan Luis Fernández-Martínez   +2 more
doaj   +1 more source

New Representations of the Group Inverse of 2×2 Block Matrices

Journal of Applied Mathematics, 2013
This paper presents a full rank factorization of a 2×2 block matrix without any restriction concerning the group inverse. Applying this factorization, we obtain an explicit representation of the group inverse in terms of four individual blocks of the ...
Xiaoji Liu, Qi Yang, Hongwei Jin
doaj   +1 more source

Inverse problems in mantle convection : models, algorithms, and applications [PDF]

, 2013
textMantle convection is the principal control on the thermal and geological evolution of the earth, including the motion of the tectonic plates, which in turn influences earthquakes, tsunamis, and volcanic eruptions.
Worthen, Jennifer Anne
core  

Inverse graphs associated with finite groups

Electronic Journal of Graph Theory and Applications, 2017
Summary: Let \((\Gamma,*)\) be a finite group and \(S\) a possibly empty subset of \(\Gamma\) containing its non-self-invertible elements. In this paper, we introduce the inverse graph associated with \(\Gamma\) whose set of vertices coincides with \(\Gamma\) such that two distinct vertices \(u\) and \(v\) are adjacent if and only if either \(u * v\in ...
Monther R. Alfuraidan, Yusuf Feyisara Zakariya   +1 more
openaire   +2 more sources

Antea Group Archeologie 2015/32

, 2016
Voorliggend onderzoeksrapport betreft de verslaglegging van diverse archeologische onderzoeken die met elkaar gemeen hebben dat ze alle drie gelegen zijn in de kern van Zevenbergen. Als eerste deelgebied wordt hier de haven onderscheiden.
Koopmanschap, Dr. H.J.L.C. (Antea Group)
core   +1 more source

Weighted MP weak group inverse

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
To extent the notion of the MP weak group inverse for square matrices, we introduce the concept of the weighted MP weak group inverse for rectangular matrices.
Mosić Dijana, Marovt Janko
doaj   +1 more source

Inverse Ambiguous Functions and Automorphisms on Finite Groups

Annales Mathematicae Silesianae, 2019
If G is a finite group, then a bijective function f : G → G is inverse ambiguous if and only if f(x)−1 = f−1(x) for all x ∈ G. We give a precise description when a finite group admits an inverse ambiguous function and when a finite group admits an ...
Toborg Imke
doaj   +1 more source

Statistical inference for inverse problems [PDF]

In this paper we study statistical inference for certain inverse problems. We go beyond mere estimation purposes and review and develop the construction of confidence intervals and confidence bands in some inverse problems, including deconvolution and ...
Bissantz, Nicolai, Holzmann, Hajo
core