Results 71 to 80 of about 6,200 (156)

On the spectrum of nondegenerate magnetic Laplacians

open access: yesAnalysis & PDE
We consider a compact Riemannian manifold with a Hermitian line bundle whose curvature is non degenerate. Under a general condition, the Laplacian acting on high tensor powers of the bundle exhibits gaps and clusters of eigenvalues. We prove that for each cluster, the number of eigenvalues that it contains, is given by a Riemann-Roch number.
openaire   +4 more sources

Spectral Decomposition of the Weinstein Laplacian and Its Application to the Associated Heat Transform

open access: yesInternational Journal of Mathematics and Mathematical Sciences
For the Weinstein Laplacian considered on the Hilbert space which makes it a self-adjoint operator, the Von Neumann spectral decomposition is given. As applications, a new integral representation for the Weinstein heat kernel is given. Also, it is proved
Abdelilah El Mourni   +2 more
doaj   +1 more source

Model selection for network data based on spectral information

open access: yesApplied Network Science
In this work, we explore the extent to which the spectrum of the graph Laplacian can characterize the probability distribution of random graphs for the purpose of model evaluation and model selection for network data applications.
Jairo Iván Peña Hidalgo   +1 more
doaj   +1 more source

Quantitative susceptibility mapping in pediatric neuroimaging: a systematic review of applications and advancements. [PDF]

open access: yesPediatr Radiol
Pacchiano F   +8 more
europepmc   +1 more source

Atom-in-Molecule Analysis, Density Function Theory Research, Spectroscopy, Charge Transfer, and (Static, Dynamic) Nonlinear Optical Effects of (Z)4,4<sup>'</sup>-Bis[-3-N-Ethyl-2-N'-(Phenylimino) Thiazolidin-4-One] Methane. [PDF]

open access: yesChemistryOpen
Benyahlou ZD   +13 more
europepmc   +1 more source

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