Results 41 to 50 of about 6,503,496 (355)

Operator Integrals, Spectral Shift, and Spectral Flow [PDF]

open access: yesCanadian Journal of Mathematics, 2009
Abstract. We present a new and simple approach to the theory of multiple operator integrals that applies to unbounded operators affiliated with general von Neumann algebras. For semifinite von Neumann algebras we give applications to the Fréchet differentiation of operator functions that sharpen existing results, and establish the Birman–Solomyak ...
Sukochev, Fyodor Anatolievich   +3 more
openaire   +3 more sources

Magnetofluid unsteady electroosmotic flow of Jeffrey fluid at high zeta potential in parallel microchannels

open access: yesOpen Physics, 2022
In this article, the magnetofluid unsteady electroosmotic flow (EOF) of Jeffrey fluid with high zeta potential is studied by using the Chebyshev spectral method and the finite difference method.
Ren Meirong   +4 more
doaj   +1 more source

SKYRMIONS, SPECTRAL FLOW AND PARITY DOUBLES [PDF]

open access: yesInternational Journal of Modern Physics A, 1999
It is well-known that the winding number of the Skyrmion can be identified as the baryon number. We show in this paper that this result can also be established using the Atiyah–Singer index theorem and spectral flow arguments. We argue that this proof suggests that there are light quarks moving in the field of the Skyrmion.
Balachandran, A. P., Vaidya, Sachindeo
openaire   +2 more sources

Simultaneous observations at different altitudes of ionospheric backscatter in the eastward electrojet [PDF]

open access: yesAnnales Geophysicae, 1998
A common feature of evening near-range ionospheric backscatter in the CUTLASS Iceland radar field of view is two parallel, approximately L-shell-aligned regions of westward flow which are attributed to irregularities in the auroral eastward electrojet
S. E. Milan, M. Lester
doaj   +1 more source

Panel Design and Optimization for High‐Dimensional Immunophenotyping Assays Using Spectral Flow Cytometry

open access: yesCurrent Protocols in Cytometry, 2020
Technological advances in fluorescence flow cytometry and an ever‐expanding understanding of the complexity of the immune system have led to the development of large (20+ parameters) flow cytometry panels.
L. Ferrer-Font   +5 more
semanticscholar   +1 more source

Spectral modeling of magnetohydrodynamic turbulent flows [PDF]

open access: yesPhysical Review E, 2008
We present a dynamical spectral model for Large Eddy Simulation of the incompressible magnetohydrodynamic (MHD) equations based on the Eddy Damped Quasi Normal Markovian approximation. This model extends classical spectral Large Eddy Simulations for the Navier-Stokes equations to incorporate general (non Kolmogorovian) spectra as well as eddy noise. We
Baerenzung, J.   +3 more
openaire   +6 more sources

$ L^2 $-Gradient flows of spectral functionals

open access: yesDiscrete and Continuous Dynamical Systems, 2023
We study the $L^2$-gradient flow of functionals $\mathcal F$ depending on the eigenvalues of Schrödinger potentials $V$ for a wide class of differential operators associated to closed, symmetric, and coercive bilinear forms, including the case of all the Dirichlet forms (as for second order elliptic operators in Euclidean domains or Riemannian ...
Mazzoleni, Dario, Savarè, Giuseppe
openaire   +4 more sources

Spectral flow and variational bifurcation [PDF]

open access: yesJournal of Fixed Point Theory and Applications
We show that the principle “nonvanishing of spectral flow of the linearization along the trivial branch entails bifurcation of nontrivial solutions”, established in Fitzpatrick et al.
J. Pejsachowicz
semanticscholar   +1 more source

More AdS_3 correlators [PDF]

open access: yes, 2014
We compute three-point functions for the $SL(2,\mathbb R)$-WZNW model. After reviewing the case of the two-point correlator, we compute spectral flow preserving and nonpreserving correlation functions in the space-time picture involving three vertex ...
Cagnacci, Yago, Iguri, Sergio M.
core   +2 more sources

Spectral Entropy in a Boundary-Layer Flow

open access: yesEntropy, 2011
This article presents a comparison of the entropy production in a laminar and transitional boundary layer flow with the spectral entropy produced in a region of instability induced by an imposed periodic disturbance.
LaVar King Isaacson
doaj   +1 more source

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