Results 131 to 140 of about 11,401 (255)

On the Dirichlet Boundary Value Problem for the Cauchy-Riemann Equations in the Half Disc

open access: yesEuropean Journal of Mathematical Analysis
In this article, we investigate the Dirichlet boundary value problem for the Cauchy-Riemann equations in the half disc. First, using the technique of parqueting–reflection and the Cauchy-Pompeiu representation formula for a half disc, we obtain an ...
Ali Darya, Nasir Tagizadeh
doaj   +1 more source

Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1973-2102, August 2026.
ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley   +1 more source

Riemann problem for one diferantional Burgers equation and its solution [PDF]

open access: yes, 2014
Üç bölümden oluşan tezim birinci bölümünde, Riemann problemi tanıtılmış, İkinci bölümünde ise literatür incelemesi yer almıştır. Bilindiği üzere, başlangıç fonksiyonun x-y düzleminde aldığı değerlere bağlı olarak 4 dilimli (4 parçalı sabit değer alabilen
Özer, Feride
core  

Nonclassical shock waves of conservation laws: Flux function having two inflection points

open access: yesElectronic Journal of Differential Equations, 2006
We consider the Riemann problem for non-genuinely nonlinear conservation laws where the flux function admits two inflection points. This is a simplification of van der Waals fluid pressure, which can be seen as a function of the specific volume for a ...
Ho Dac Nghia, Mai Duc Thanh
doaj  

Optimal Selling Mechanisms With Endogenous Seller Outside Offers

open access: yesInternational Economic Review, Volume 67, Issue 3, Page 875-891, August 2026.
ABSTRACT We examine a two‐stage selling mechanism design problem, where the buyer makes her report and the seller endogenously decides his effort (hidden investment) to generate a possibly better outside offer. The optimal mechanism shows that the seller's effort depends on the reported value of the buyer; a higher value lowers the seller's incentive ...
Xiaogang Che   +3 more
wiley   +1 more source

Riemann problem for a two-dimensional quasilinear hyperbolic system

open access: yesElectronic Journal of Differential Equations, 2015
This article concerns the study of the Riemann problem for a two-dimensional non-strictly hyperbolic system of conservation laws. The initial data are three constant states separated by three lines and are chosen so that one of the three interfaces ...
Chun Shen
doaj  

Time‐dependent association between prenatal hair glucocorticoid levels and child behavior problems

open access: yesJournal of Child Psychology and Psychiatry, Volume 67, Issue 8, Page 1297-1306, August 2026.
Background Child internalizing and externalizing behavioral problems are highly prevalent psychiatric symptoms worldwide, for which maternal prenatal stress is a known risk factor. However, underlying neuroendocrine mechanisms remain largely unclear. We investigated whether maternal hair cortisol (HCC) and cortisone concentration (HCNC) are associated ...
Richard G. Künzel   +11 more
wiley   +1 more source

The Interplay Between Emotion Dysregulation and Repetitive Thoughts in Insomnia Disorder: The Impact of Worry, Rumination and REM Sleep Instability

open access: yesJournal of Sleep Research, Volume 35, Issue 4, August 2026.
ABSTRACT While previous research has identified emotional dysregulation and repetitive thinking as contributors to insomnia, the interplay between these factors remains unclear. Building upon data previously collected in our laboratory, this exploratory study extends prior findings by examining the mediating role of rumination, worry and rapid eye ...
Samantha Mombelli   +6 more
wiley   +1 more source

One‐Session Cognitive Behavioural Therapy for Insomnia in Integrated Primary Care: A Preliminary Study

open access: yesJournal of Sleep Research, Volume 35, Issue 4, August 2026.
ABSTRACT Chronic insomnia is commonly reported in primary care settings. One‐session cognitive behavioural therapy for insomnia (CBT‐I) is a brief intervention designed to fit the fast‐paced nature of primary care but has not been studied in this context.
Jamie L. Walker   +6 more
wiley   +1 more source

Inference on the Attractor Space via Functional Approximation

open access: yesOxford Bulletin of Economics and Statistics, Volume 88, Issue 4, Page 643-657, August 2026.
ABSTRACT This paper discusses semiparametric inference on hypotheses on the cointegration and the attractor spaces for I(1) linear processes with moderately large cross‐sectional dimension. The approach is based on sample canonical correlations and functional approximation of Brownian motions, and it can be applied both to the whole system and or to ...
Massimo Franchi, Paolo Paruolo
wiley   +1 more source

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