Results 121 to 130 of about 29,270 (226)
Reversal of economic integration: evidence from European Union enlargement
The Scandinavian Journal of Economics, EarlyView.Abstract Empirical models of trade agreements implicitly assume that withdrawal from a trade agreement has an equal and opposite trade effect as accession (i.e., symmetry). With increasing opposition to international economic cooperation, it becomes urgent to test this assumption.
Hinnerk Gnutzmann +2 more
wiley +1 more source
Robust Inverse Material Design With Physical Guarantees Using the Voigt‐Reuss Net
International Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.ABSTRACT We apply the Voigt‐Reuss net, a spectrally normalized neural surrogate introduced in [38], for forward and inverse mechanical homogenization with a key guarantee that all predicted effective stiffness tensors satisfy Voigt‐Reuss bounds in the Löwner sense during training, inference, and gradient‐driven optimization.
Sanath Keshav, Felix Fritzen
wiley +1 more source
The universal enveloping algebras of n-differential graded Poisson algebras(n次微分分次Poisson代数的泛包络代数)
Zhejiang Daxue xuebao. Lixue ban, 2016 给出了n次微分分次Poisson代数的泛包络代数的定义及相关性质，同时给出了它的应用，即e是n次微分Z-分次Poisson代数范畴到微分Z-分次代数范畴的一个共变函子和（Ae)op=（Aop）e，其中A是任意的n次微分分次Poisson代数.
ZHUHui(朱卉) +2 more
doaj +1 more source
International Journal for Numerical Methods in Fluids, Volume 98, Issue 4, Page 398-432, April 2026.We introduce new efficient and accurate first order finite volume‐type numerical schemes, for the non‐conservative one‐dimensional blood flow equations with transport, taking into account different velocity profiles. The framework is the flux‐vector splitting approach of Toro and Vázquez‐Cendón (2012), that splits the system in two subsystems of PDEs ...
Alessandra Spilimbergo +3 more
wiley +1 more source
Non‐vanishing of Poincaré series on average
Mathematika, Volume 72, Issue 2, April 2026.Abstract We study when Poincaré series for congruence subgroups do not vanish identically. We show that almost all Poincaré series with suitable parameters do not vanish when either the weight k$k$ or the index m$m$ varies in a dyadic interval. Crucially, analyzing the problem ‘on average’ over these weights or indices allows us to prove non‐vanishing ...
Ned Carmichael, Noam Kimmel
wiley +1 more source
Deformation Quantization of Nonassociative Algebras
MathematicsWe investigate formal deformations of certain classes of nonassociative algebras including classes of K[Σ3]-associative algebras, Lie-admissible algebras and anti-associative algebras.
Elisabeth Remm
doaj +1 more source
Free Field Realisation of the Chiral Universal Centraliser. [PDF]
Ann Henri Poincare, 2023 Beem C, Nair S.
europepmc +1 more source
Simple Poisson–Farkas Algebras and Ternary Filippov Algebras
Siberian Mathematical Journal, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Dual Variational Problems and Action Principles for Chen–Lee and Hopf–Langford Systems
Mathematical Methods in the Applied Sciences, Volume 49, Issue 4, Page 2456-2462, 15 March 2026.ABSTRACT We describe the construction of dual variational principles and action functionals for nonlinear dynamical systems using a methodology based on the dual Lagrange multiplier formalism and a convex optimization approach, to derive families of dual actions that correspond to the given nonlinear ordinary differential system.
A. Ghose‐Choudhury, Partha Guha
wiley +1 more source
An observation‐driven state‐space model for claims size modelling
Canadian Journal of Statistics, Volume 54, Issue 1, March 2026.Abstract State‐space models are popular in econometrics. Recently, these models have gained some popularity in the actuarial literature. The best known state‐space models are of the Kalman‐filter type. These are called parameter‐driven because the observations do not impact the state‐space dynamics.
Jae Youn Ahn +2 more
wiley +1 more source