Results 41 to 50 of about 275,134 (139)

The local geometry of idempotent Schur multipliers

open access: yesForum of Mathematics, Pi
A Schur multiplier is a linear map on matrices which acts on its entries by multiplication with some function, called the symbol. We consider idempotent Schur multipliers, whose symbols are indicator functions of smooth Euclidean domains.
Javier Parcet   +2 more
doaj   +1 more source

How to Match Cognitive Model Predictions With EEG Data

open access: yesTopics in Cognitive Science, EarlyView.
Abstract Reliably identifying relevant brain areas implicated by the simulated activity from cognitive models is still an unsolved problem for cognitive modeling, particularly when matching model output with human electroencephalography (EEG) data. We propose a new method involving postprocessing of ACT‐R module activity and clustered EEG component ...
Kai Preuss   +3 more
wiley   +1 more source

The theoretical basis of reservoir pressure in arteries

open access: yesExperimental Physiology, EarlyView.
Abstract The separation of measured arterial pressure into a reservoir pressure and an excess pressure was introduced over 20 years ago as a heuristic hypothesis. Since then it has gained some traction through epidemiological studies that show that various measures of reservoir and excess pressure are independent risk factors for cardiovascular disease.
Kim H. Parker, Alun D. Hughes
wiley   +1 more source

Contact as collective action: Positive and negative contact experiences of disadvantaged group members

open access: yesPolitical Psychology, Volume 47, Issue 6, December 2026.
Abstract Intergroup contact programs worldwide strive to combat prejudice by promoting encounters between socially advantaged and disadvantaged groups. Despite their prevalence, little is known about how disadvantaged group members experience participation in such programs.
Fiona Kazarovytska   +2 more
wiley   +1 more source

Geometry of chord intertwiner, multiple shocks and switchback in double-scaled SYK

open access: yesJournal of High Energy Physics
We revisit the bulk Hilbert space interpretation of chords in the double-scaled SYK (DSSYK) model and introduce a notion of intertwiner that constructs bulk states from states with fixed boundary conditions. This leads to an isometric map that factorizes
Sergio E. Aguilar-Gutierrez, Jiuci Xu
doaj   +1 more source

Frequency‐dependent contraction rates for the Bayesian method to the inverse source problem

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract This paper addresses an inverse source problem for acoustic waves in a range of frequencies. Our study has two main goals. First, although the problem is severely ill‐posed with a logarithmic stability estimate, we demonstrate, through careful analysis of the forward map's singular values, that increasing the frequency range enhances stability,
Pu‐Zhao Kow, Jenn‐Nan Wang
wiley   +1 more source

Some Inequalities for Convex Functions of Selfadjoint Operators in Hilbert Spaces [PDF]

open access: yes, 2008
Some inequalities for convex functions of selfadjoint operators in Hilbert spaces under suitable assumptions for the involved operators are given.
Dragomir, Sever S
core   +3 more sources

PROFESSOR VASILE NEAGU ON HIS 80TH BIRTHDAY

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii
Professor Vasile Neagu, Doctor Habilitatus in Mathematics and Physics, is a distinguished representative of the Moldovan school of functional analysis. His research has made significant contributions to the theory of singular integral operators, Riemann–
Dumitru Cozma, Mihail Popa
doaj   +1 more source

On the Kolyvagin formula for elliptic curves with good reductions over pseudolocal fields [PDF]

open access: yesМатематичні Студії, 2013
We consider the {relationships between the} local Artin map$heta colon K^* o mathrm{Gal}(K^{ab}/K)$ {and the} Hilbert symbol $(cdot,,cdot)colon K^*/K^{*m} imes K^*/K^{*m} longrightarrow mu_m$ for {a} general local field, as well as {between} the Tate ...
V. I. Nesteruk
doaj  

Nonlocal Scalar Quantum Field Theory—Functional Integration, Basis Functions Representation and Strong Coupling Expansion

open access: yesParticles, 2019
Nonlocal quantum field theory (QFT) of one-component scalar field φ in D-dimensional Euclidean spacetime is considered. The generating functional (GF) of complete Green functions Z as a functional of external source j, coupling constant ...
Matthew Bernard   +4 more
doaj   +1 more source

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