Results 61 to 70 of about 6,503,496 (355)
The APS-index and the spectral flow [PDF]
Operators and Matrices, 2019 An equality between the spectral flow of a family $A$ of self-adjoint Fredholm operators and the index of the associated differential operator $\frac{d}{dt}-iA$ with Atiyah-Patodi-Singer-style boundary conditions is shown.
Lennart Ronge
semanticscholar +1 more source
The Aharonov-Bohm effect for massless Dirac fermions and the spectral flow of Dirac type operators with classical boundary conditions [PDF]
, 2012 We compute, in topological terms, the spectral flow of an arbitrary family of self-adjoint Dirac type operators with classical (local) boundary conditions on a compact Riemannian manifold with boundary under the assumption that the initial and terminal ...
A. R. Akhmerov +31 more
core +3 more sources
Laser Speckle Imaging of Rat Pial Microvasculature during Hypoperfusion-Reperfusion Damage
Frontiers in Cellular Neuroscience, 2017 The present study was aimed to in vivo assess the blood flow oscillatory patterns in rat pial microvessels during 30 min bilateral common carotid artery occlusion (BCCAO) and 60 min reperfusion by laser speckle imaging (LSI).
Teresa Mastantuono +12 more
doaj +1 more source
Entropy, 2016 Results are presented for an innovative computational procedure that predicts time-dependent instabilities and deterministic ordered structures in three-dimensional steady-state laminar boundary-layer flows.
LaVar King Isaacson
doaj +1 more source
Noise identification based on spectral analysis and noisy transfer function approach for fuel cells
Noise Mapping, 2020 In this study, some measurements like the current, voltage and hydrogen flow based on the fuel cell are investigated in spectral-domain as well as their time-domain representations and then, their spectral properties are extracted.
Akinci Tahir Cetin +3 more
doaj +1 more source
Spectral Flow Argument Localizing an Odd Index Pairing [PDF]
Canadian mathematical bulletin, 2018 An odd Fredholm module for a given invertible operator on a Hilbert space is specified by an unbounded so-called Dirac operator with compact resolvent and bounded commutator with the given invertible.
T. Loring, H. Schulz-Baldes
semanticscholar +1 more source
Applied Sciences, 2021 In a laser-induced breakdown spectroscopy (LIBS) system that performs elemental analysis of a target by acquiring the emission of plasma generated on the material surface by a focused laser, the plasma signal may be affected by the flow of the ...
Sangwoo Yoon, Hae-Woon Choi, Joohan Kim
doaj +1 more source
Spectral Flows Associated to Flux Tubes [PDF]
Annales Henri Poincaré, 2014 When a flux quantum is pushed through a gapped two-dimensional tight-binding operator, there is an associated spectral flow through the gap which is shown to be equal to the index of a Fredholm operator encoding the topology of the Fermi projection. This is a natural mathematical formulation of Laughlin's Gedankenexperiment.
De Nittis, Giuseppe +1 more
openaire +2 more sources
Quantifying Neural Oscillatory Synchronization: A Comparison between Spectral Coherence and Phase-Locking Value Approaches. [PDF]
PLoS ONE, 2016 Synchronization or phase-locking between oscillating neuronal groups is considered to be important for coordination of information among cortical networks.
Eric Lowet +4 more
doaj +1 more source
A high-dimensional platform for observing neutrophil–parasite interactions
Microbiology SpectrumDiarrheal diseases with infectious etiology remain a major cause of death globally, particularly in low-income countries. Entamoeba histolytica is a pathogenic protozoan parasite that is the causative agent of amebiasis. Amebiasis has a wide presentation
Brandon A. Thompson +3 more
doaj +1 more source