Results 81 to 90 of about 828 (215)

Linearizing and Forecasting: A Reservoir Computing Route to Digital Twins of the Brain

open access: yesAdvanced Science, Volume 13, Issue 28, 18 May 2026.
A new approach uses simple neural networks to create digital twins of brain activity, capturing how different patterns unfold over time. The method generates and recovers key dynamics even from noisy data. When applied to fMRI, it predicts brain signals and reveals distinctive activity patterns across regions and individuals, opening possibilities for ...
Gabriele Di Antonio   +3 more
wiley   +1 more source

Asymptotics of Toeplitz, Hankel, and Toeplitz+Hankel determinants with Fisher-Hartwig singularities [PDF]

open access: yesAnnals of Mathematics, 2011
43 pages, 3 figures, extended ...
Deift, P, Its, A, Krasovsky, I
openaire   +3 more sources

Second Hankel determinant for certain subclasses of bi-univalent functions

open access: yes, 2017
In the present paper, we obtain the upper bounds for the second Hankel determinant for certain subclasses of analytic and bi-univalent functions.
Çağlar, Murat   +2 more
core   +1 more source

A Decade of Airborne Electromagnetic Surveying Lake Menindee (Australia) Under Varying Water Levels

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT Time domain airborne electromagnetic (AEM) surveying is a mature geophysical tool for imaging the Earth's shallow subsurface. It produces images of the electromagnetic conductivity structure of the earth, down to depths of a few hundred metres.
A. Ray   +11 more
wiley   +1 more source

On vector Hankel determinants

open access: yesLinear Algebra and its Applications, 2000
Recently a definition of Hankel determinants \(H^n_k\) with entries in a finite-dimensional real vector space was given in terms of designants and Clifford algebra. Sylvester's identity can still be used for computing these determinants recursively, but the aim of this paper is to present a more efficient method avoiding the use of the Clifford algebra
openaire   +2 more sources

On the Determinant of a Certain Wiener-Hopf + Hankel Operator [PDF]

open access: yesIntegral Equations and Operator Theory, 2003
We establish an asymptotic formula for determinants of truncated Wiener-Hopf+Hankel operators with symbol equal to the exponential of a constant times the characteristic function of an interval. This is done by reducing it to the corresponding (known) asymptotics for truncated Toeplitz+Hankel operators.
Basor, Estelle L   +2 more
openaire   +4 more sources

Second Hankel Determinant for Bi-starlike Functions of Order β

open access: yes, 2016
Making use of the Hankel determinant, in this work, we consider a general subclass of bi-univalent functions.
Altınkaya, Şahsene   +3 more
core   +1 more source

Analytical Expressions for the Depth Investigation Characteristic and Mean Sensitivity Depth for Electrical Resistivity Surveys Using Long Electrodes

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT In analyses of the electrical resistivity method, it is usually assumed that electrodes can be represented as point current sources and point potential measurements. However, if electrodes extend into the ground to depths that are similar to their spacing or greater, this approximation may not be valid.
S. L. Butler
wiley   +1 more source

On the automaticity of the Hankel determinants of a family of automatic sequences [PDF]

open access: yesTheoretical Computer Science, 2019
Hankel determinants and automatic sequences are two classical subjects widely studied in Mathematics and Theoretical Computer Science. However, these two topics were considered totally independently, until in 1998, when Allouche, Peyrière, Wen and Wen proved that all the Hankel determinants of the Thue-Morse sequence are nonzero.
Yining Hu, Guoniu Wei-Han
openaire   +3 more sources

Transient Absorption Spectroscopy of Blue Copper Sites in Divergent Protein Folds: Azurin Versus Multicopper Oxidase

open access: yesChemPhysChem, Volume 27, Issue 8, 28 April 2026.
Ultrafast pump‐probe spectroscopy of two evolutionarily divergent blue copper proteins reveals distinct low‐frequency ground‐state collective modes (38 cm−1 in SLAC, 29 cm−1 in azurin) generated via impulsive stimulated Raman scattering, potentially reflecting the differences in the rigidity of the surrounding protein scaffold beyond a conserved Cu ...
Luis Ignacio Domenianni, Patrycja Kielb
wiley   +1 more source

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