Results 1 to 10 of about 8,466 (229)

Completing Triangular Block Matrices With Maximal and Minimal Ranks

open access: yesLinear Algebra and Its Applications, 2000
The author considers two completion problems on block matrices with maximal and minimal ranks: For \(A=(A_{ij})\) an \(n\times n\) block matrix, where \(A_{ij}\) \((n\geq i\geq j\geq 1)\) is given, and \(A_{ij}\) \((1\leq ...
Yongge Tian
exaly   +3 more sources

The Maximal and Minimal Ranks of Matrix Expression With Applications [PDF]

open access: yesJournal of Inequalities and Applications, 2012
Abstract We give in this article the maximal and minimal ranks of the matrix expression A-B 1 V 1 C 1-B 2 V 2 C 2-B 3 V 3 C 3-B 4 V
Zhi-ping Xiong, Yingying Qin
exaly   +4 more sources

Completing Block Hermitian Matrices With Maximal and Minimal Ranks and Inertias [PDF]

open access: yesElectronic Journal of Linear Algebra, 2010
For a Hermitian matrix with its main block diagonal given, this paper shows how to choose the off-diagonal blocks such that the resulting matrix has the maximal and minimal possible ranks and inertias, respectively. Some direct consequences and applications are also given.
Yongge Tian
exaly   +2 more sources

Existence of the Equivariant Minimal Model Program for Compact Kähler Threefolds With the Action of an Abelian Group of Maximal Rank

open access: yesMathematische Nachrichten, 2023
AbstractLet X be a ‐factorial compact Kähler klt threefold admitting an action of a free abelian group G, which is of positive entropy and of maximal rank. After running the G‐equivariant log minimal model program, we show that such X is either rationally connected or bimeromorphic to a Q‐complex torus.
Guolei Zhong
exaly   +4 more sources

Does the McRoberts’ manoeuvre need to start with thigh abduction? An innovative biomechanical study

open access: yesBMC Pregnancy and Childbirth, 2020
Background Guidelines and description about the achievement of the McRoberts manoeuvre are discordant, particularly concerning the need for abduction before the beginning of the manoeuvre.
David Desseauve   +5 more
doaj   +2 more sources

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

Determination of Polycyclic Aromatic Hydrocarbons in Coal from the Kuznetsk Coal Basin by Means of GC/MS and GC/GC-FID

open access: yesEurasian Chemico-Technological Journal, 2022
Results of the investigation of polycyclic aromatic hydrocarbons (PAHs) content in fine coal powders prepared according to a special procedure within size classes (-0.2+0.1) mm, (-0.1+0.063) mm, (-0.063+0.04) mm, (-0.04) mm for ten different coal ranks (
E.V. Zhuravleva   +5 more
doaj   +1 more source

Ranking fuzzy numbers using fuzzy maximizing-minimizing points [PDF]

open access: yesProceedings of the 7th conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011), 2011
Up to now, several approaches have been proposed for ranking of fuzzy numbers using maximizing set and minimizing sets. Often, the reference points are created by real numbers. In this paper, we proposed new reference points so called fuzzy maximizing-minimizing points.
Soheil Salahshour   +2 more
openaire   +2 more sources

Ranking alternatives with fuzzy weights using maximizing set and minimizing set [PDF]

open access: yesFuzzy Sets and Systems, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
P. Anand Raj, D. Nagesh Kumar
openaire   +2 more sources

Minimizing the Maximal Rank

open access: yes2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2016
In computer vision, many problems can be formulated as finding a low rank approximation of a given matrix. Ideally, if all elements of the measurement matrix are available, this is easily solved in the L2-norm using factorization. However, in practice this is rarely the case. Lately, this problem has been addressed using different approaches, one is to
Bylow, Erik   +3 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy