Results 11 to 20 of about 86,808 (266)

Characteristic Roots of a Class of Fractional Oscillators [PDF]

open access: yesAdvances in High Energy Physics, 2013
The fundamental theorem of algebra determines the number of characteristic roots of an ordinary differential equation of integer order. This may cease to be true for a differential equation of fractional order.
Ming Li   +3 more
doaj   +5 more sources

Properties of Estimated Characteristic Roots [PDF]

open access: yesSSRN Electronic Journal, 2008
Estimated characteristic roots in stationary auto-regressions are shown to give rather noisy information about their population equivalents. This is remarkable given the central role of the characteristic roots in the theory of autoregressive processes.
Nielsen, Bent, Nielsen, Heino Bohn
openaire   +6 more sources

On the characteristic roots of matrices [PDF]

open access: yesProceedings of the American Mathematical Society, 1965
Let A = (a ij) be an nXn complex matrix. For i = 1, 2, , n and p > 0 define R(i, p) = I ait I P) l/p. It is well known [2 ] that the characteristic roots of A lie in the union of the disks (1) I aii,-z| < R(i, 1) (i = 1, 2, .. * * n). A. Brauer [3 ] improved this result by replacing these disks with the n(n 1)/2 ovals of Cassini (2) | aii,z IIai -z I <
openaire   +1 more source

A characteristic polynomial for rooted graphs and rooted digraphs

open access: yesDiscrete Mathematics, 2001
The paper investigates the characteristic polynomial \(p(G,\lambda)\) by concentrating exclusively on rooted graphs and digraphs \(G\). It is shown that when \(G\) is a rooted digraph, this polynomial essentially counts the number of sinks in \(G\). When \(G\) is a rooted graph, the authors give combinatorial interpretations of several coefficients and
Gary Gordon, Elizabeth W. McMahon
openaire   +1 more source

On the Characteristic Roots of Real Matrices [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
If A A is a real
openaire   +1 more source

Characteristics of L3 nerve root radiculopathy [PDF]

open access: yesSurgical Neurology, 2009
In degenerative lumbar spinal disease with nerve root compression, the L5 and S1 nerve roots are the most often affected and the L3 nerve root is involved infrequently. The purpose of this study was to investigate the characteristics of L3 nerve root radiculopathy.Seventeen consecutive patients with L3 radiculopathy were treated.
Hiroki, Hirabayashi   +9 more
openaire   +2 more sources

A Study on Characteristic Roots of Lattice Matrices

open access: yesJournal of Mathematics, 2016
This paper deals with the characteristic roots of different types of lattice matrices and proves that a matrix and its transpose have the same characteristic roots.
Kapiarumalayil Varkey Thomas, Geena Joy
doaj   +1 more source

Root Characteristics in Pea in Relation to Compaction and Fusarium Root Rot [PDF]

open access: yesPlant Disease, 2001
Differences in pea root length, root surface area, and diameter were rapidly determined using the WinRhizo computer program. Repeatable differences were measured both in the laboratory and in the field. Large-rooted lines, as measured in the laboratory, also were the largest-rooted lines in the field.
John M, Kraft, W, Boge
openaire   +2 more sources

Sums of Powered Characteristic Roots Count Distance-Independent Circular Sets

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Significant values of a combinatorial count need not fit the recurrence for the count. Consequently, initial values of the count can much outnumber those for the recurrence.
Skupień Zdzisław
doaj   +1 more source

Trichoderma Asal Akar Kopi Dari Alor: Karakterisasi Morfologi dan Keefektifannya Menghambat Colletotrichum Penyebab Penyakit Antraknosa secara in Vitro

open access: yesJurnal Fitopatologi Indonesia, 2020
Trichoderma of Coffee Roots From Alor: Morphological characteristic and in vitro Efficacy to Inhibit Colletotrichum Causing Anthracnose Trichoderma is a fungus capable of intimate associations with plant root systems including on coffee plants.
Didiana Yanuarita Molebila   +2 more
doaj   +1 more source

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