Results 1 to 10 of about 1,247,719 (274)
A Minimum Rank Approach for Reduction of Environmental Noise in Near-Field Array Antenna Diagnosis [PDF]
A method to filter out the contribution of interference sources in array diagnosis is proposed. The interference-affected near field measured on a surface is treated as a (complex-data) image.
Marco Donald Migliore +4 more
doaj +2 more sources
Resolving the taxonomic enigma of Nesocaryum stylosum (Boraginaceae): phylogenetic evidence for its reclassification as Cryptantha stylosa [PDF]
The classification of Nesocaryum stylosum (Boraginaceae) has remained unresolved for nearly a century. This species is endemic to Isla San Ambrosio, a small island located approximately 900 km due west of the coast of central Chile. Ivan M.
Michael G. Simpson +10 more
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Bounds on the Minimum Edge Dominating Energy in Terms of Some Parameters of a Graph [PDF]
The minimum edge dominating energy, denoted by $EE_{F}(G)$, is the sum of the absolute values of eigenvalues of the minimum edge dominating matrix of graph $G$.
Fateme Movahedi
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State-independent quantum contextuality with projectors of nonunit rank
Virtually all of the analysis of quantum contextuality is restricted to the case where events are represented by rank-one projectors. This restriction is arbitrary and not motivated by physical considerations.
Zhen-Peng Xu +2 more
doaj +1 more source
Maximum nullity and zero forcing of circulant graphs
The zero forcing number of a graph has been applied to communication complexity, electrical power grid monitoring, and some inverse eigenvalue problems.
Duong Linh +4 more
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Reducing the rank of a matroid [PDF]
We consider the rank reduction problem for matroids: Given a matroid $M$ and an integer $k$, find a minimum size subset of elements of $M$ whose removal reduces the rank of $M$ by at least $k$. When $M$ is a graphical matroid this problem is the minimum $
Gwenaël Joret, Adrian Vetta
doaj +1 more source
Investigating the Efficiency of the 1/N Model in Portfolio Selection [PDF]
Objective: Since Markowitz's (1952) pioneering work on a single-period investment model, mean-variance portfolio optimization problem has become a cornerstone of investment management in both academic and industrial fields.
Reza Raei, Saeed Bajalan, Alireza Ajam
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Monitoring of aerological risks of accidents in coal mines
The assessment and management of aerological risks in coal mine accidents are based on the development of a data analytics system that hosts design values for various parameters and subsystems related to coal mines, as well as the real-time monitoring of
Balovtsev S. V.
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We correct an error in the original Lemma 3.4 in our paper “Achievable Multiplicity partitions in the IEVP of a graph”’ [Spec. Matrices 2019; 7:276-290.]. We have re-written Section 3 accordingly.
Adm Mohammad +5 more
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Library Services Quality Assessment in Allameh Tabataba'i University Using The Libeb-Kuala Model [PDF]
Assessing the quality of the central library servicesinAllameh Tabataba’i University and identifying the Libqual indicators needed for improvement, are the research objectives.Methodology: The survey research method was applied according to the Libqual ...
Ali Jalalidizji, Leyla Jabari
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