Results 51 to 60 of about 122,737 (189)

On the Necessity of Dynamic Inflow [PDF]

open access: yesModeling, Identification and Control
This work explores the importance of dynamic inflow for wind turbines of varying rotor radius and also includes various coplanar multirotor setups. A parametrized model including the rotor and inflow dynamics is formulated.
Finn Matras, Morten D. Pedersen
doaj   +1 more source

Spectral Properties of the Laplace Operator with Variable Dependent Boundary Conditions in a Disk

open access: yesAxioms
In this work, we study the spectral properties of the Laplace operator with variable dependent boundary conditions in a disk. The boundary conditions include periodic and antiperiodic boundary conditions as well as the generalized Samarskii–Ionkin-type ...
Aishabibi Dukenbayeva, Makhmud Sadybekov
doaj   +1 more source

On the Exact and Approximate Eigenvalue Distribution for Sum of Wishart Matrices [PDF]

open access: green, 2017
Gabriel Fernando Pivaro   +3 more
openalex   +1 more source

Riesz bases generated by the spectra of Sturm-Liouville problems

open access: yesElectronic Journal of Differential Equations, 2013
Let ${lambda _n^2} _{n = 0}^infty$ be the spectra of a Sturm-Liouville problem on $[0,pi ]$. We investigate the question: Do the systems ${ cos(lambda_nx)} _{n = 0}^infty$ or ${ sin(lambda_n x)} _{n = 0}^infty$ form Riesz bases in ${L^2}[0,pi ]$? The
Tigran Harutyunyan   +2 more
doaj  

Symplectic eigenvalue problem via trace minimization and Riemannian optimization [PDF]

open access: green, 2021
Nguyen Thanh Son   +3 more
openalex   +1 more source

Eigenvalue and graph-based object extraction from mobile laser scanning point clouds [PDF]

open access: diamond, 2013
Magnus Bremer   +2 more
openalex   +1 more source

Factor Productivity in the Argentinean Agriculture

open access: yesRevista de Economía y Estadística, 2007
This paper is aimed at investigating the endogeneity of the total factor productivity in the Argentinean agriculture. In a simple model ofendogenous technological change, the implementation of new techniques of production would depend upon sectoral ...
Alberto Herrou Aragón
doaj  

On the Extended Adjacency Eigenvalues of a Graph

open access: yesInformation
Let H be a graph of order n with m edges. Let di=d(vi) be the degree of the vertex vi. The extended adjacency matrix Aex(H) of H is an n×n matrix defined as Aex(H)=(bij), where bij=12didj+djdi, whenever vi and vj are adjacent and equal to zero otherwise.
Alaa Altassan   +2 more
doaj   +1 more source

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