Results 111 to 120 of about 5,570,536 (255)

Anthropometric differences between twins at birth and their association with later cognitive performance

Journal of Child Psychology and Psychiatry, Volume 67, Issue 10, Page 1692-1700, October 2026.
Background Past studies indicate significant associations between birth anthropometrics, such as relative birthweight or head circumference, and later cognitive performance. Using twin data, we investigated whether these associations are confounded by genetic and environmental factors.
Robert Eves, Marco Deppe, Christian Kandler, Bastian Mönkediek, Sakari Lemola   +4 more
wiley   +1 more source

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

European 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

The Role of Flexibility in the Formation and Maintenance of Extreme Beliefs: A Narrative Scoping Review

Scandinavian Journal of Psychology, Volume 67, Issue 5, Page 1298-1309, October 2026.
ABSTRACT There is growing interest in the role of cognitive flexibility in the development of politically motivated violence and a willingness to self‐sacrifice. However, the construct of flexibility has been applied in multiple ways across disciplines, resulting in conceptual ambiguity and methodological challenges.
Sebastian Deverson, Paul Delfabbro, Ryan Balzan   +2 more
wiley   +1 more source

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

Electronic 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  

A tropical version of Martens' theorem for metric graphs

Bulletin of the London Mathematical Society, Volume 58, Issue 10, October 2026.
Abstract We study the conjecture stated by Jensen and Len on a tropical version on Martens' theorem via the Brill–Noether rank of a tropical curve. We recall Coppens' counterexample of Martens‐special chain of cycles, and we generalize the construction defining another class of graphs, Martens‐special trees of cycles, for which the conjecture does not ...
Giusi Capobianco, Angelina Zheng
wiley   +1 more source

Riemann problem for a two-dimensional quasilinear hyperbolic system

Electronic 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  

Zeros of polynomials in derivatives of automorphic L$L$‐functions

Mathematika, Volume 72, Issue 4, October 2026.
Abstract Let Fm$\mathfrak {F}_m$ be the set of all cuspidal automorphic representations of GLm(AQ)$\mathrm{GL}_m(\mathbb {A}_{\mathbb {Q}})$, and let F(s,π)$F(s,\bm {\pi })$ be a polynomial in the derivatives of L$L$‐functions associated with representations π∈⋃m=1∞Fm$\pi \in \bigcup _{m=1}^{\infty } \mathfrak {F}_m$. We establish an asymptotic formula
Anji Dong, Nawapan Wattanawanichkul, Alexandru Zaharescu   +2 more
wiley   +1 more source

Riemann--Hilbert Problems

, 2019
These lectures introduce the method of nonlinear steepest descent for Riemann-Hilbert problems. This method finds use in studying asymptotics associated to a variety of special functions such as the Painlevé equations and orthogonal polynomials, in solving the inverse scattering problem for certain integrable systems, and in proving universality for ...
openaire   +2 more sources

An effective Bombieri–Vinogradov error term for sifting problems

Mathematika, Volume 72, Issue 4, October 2026.
Abstract In number theory, many major results related to the additive properties of primes are proven using the methods of sieve theory. However, in nearly every case, the existing proofs of these results are ineffective, in that explicit values for which they hold cannot be computed.
Daniel R. Johnston
wiley   +1 more source

The Riemann Mapping Problem

, 2013
In this article we investigate the century-old continuous extension problem of the Riemann map. Let $G$ be a simply connected domain. We call $λ$ in $\partial G$ a multiple point if there are simply connected subdomains $ U$ and $V$ such that $λ\in\partial U \cap\partial V$ and $ dist (\partial U\cap G , \partial V\cap G )>0$.
openaire   +2 more sources