Results 41 to 50 of about 781 (177)

Using Local Expert Knowledge to Measure Prices: Evidence From a Survey Experiment in Vietnam

Review of Development Economics, Volume 30, Issue 4, Page 2830-2847, November 2026.
ABSTRACT Many countries lack spatially disaggregated consumer price data needed to estimate real inequality and spatial patterns of poverty. Such data are especially absent in poor countries where weak infrastructure and high transport costs create large price variation over space.
John Gibson, Trinh Le
wiley   +1 more source

Solutions of nonlinear problems involving p(x)-Laplacian operator

Advances in Nonlinear Analysis, 2015
In the present paper, by using variational principle, we obtain the existence and multiplicity of solutions of a nonlocal problem involving p(x)-Laplacian.
Yücedağ Zehra
doaj   +1 more source

An Uncertainty‐Aware Digital Twin Framework for Dynamic Cost Prediction and Decision Optimization in Transmission Engineering Projects

Engineering Reports, Volume 8, Issue 10, October 2026.
An uncertainty‐aware digital twin framework is developed to enable dynamic cost prediction and decision optimization for transmission engineering projects. The framework integrates multi‐source project data, including GIS spatial information, BIM engineering models, construction progress, resource utilization, market price fluctuations, and risk event ...
Jiang Fei, Shen An, Lin Caiyan, Li Luyang, Zhao Ning, Hu Daming   +5 more
wiley   +1 more source

Critical Concave Convex Ambrosetti–Prodi Type Problems for Fractional 𝑝-Laplacian

Advanced Nonlinear Studies, 2020
In this paper, we consider a class of critical concave convex Ambrosetti–Prodi type problems involving the fractional p-Laplacian operator. By applying the linking theorem and the mountain pass theorem as well, the interaction of the nonlinearities with ...
Bueno H. P., Huerto Caqui E., Miyagaki O. H., Pereira F. R.   +3 more
doaj   +1 more source

Dam Management in the Era of Climate Change

Mathematical Finance, Volume 36, Issue 4, Page 870-895, October 2026.
ABSTRACT Climate change has a dramatic impact, particularly by concentrating rainfall into a few short periods, interspersed with long dry spells. In this context, the role of dams is crucial. We consider the optimal control of a dam, where the water level must neither exceed a designated safety threshold nor fall below a minimum level to ensure ...
Cristina Di Girolami, M'hamed Gaïgi, Vathana Ly Vath, Simone Scotti   +3 more
wiley   +1 more source

High Perturbations of a Fractional Kirchhoff Equation with Critical Nonlinearities

Axioms
This paper concerns a fractional Kirchhoff equation with critical nonlinearities and a negative nonlocal term. In the case of high perturbations (large values of α, i.e., the parameter of a subcritical nonlinearity), existence results are obtained by the
Shengbin Yu, Lingmei Huang, Jiangbin Chen   +2 more
doaj   +1 more source

Existence of solutions for a fourth-order boundary value problem on the half-line via critical point theory

Electronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, a fourth-order boundary value problem on the half-line is considered and existence of solutions is proved using a minimization principle and the mountain pass theorem.
Mabrouk Briki, Toufik Moussaoui, Donal O'Regan   +2 more
doaj   +1 more source

Existence of multiple positive solutions for a truncated Kirchhoff-type system involving weight functions and concave–convex nonlinearities

Advances in Difference Equations, 2020
We consider the combined effect of concave–convex nonlinearities on the number of solutions for an indefinite truncated Kirchhoff-type system involving the weight functions.
Qingjun Lou, Yupeng Qin
doaj   +1 more source

A conversation with James V. Zidek

Canadian Journal of Statistics, Volume 54, Issue 3, September 2026.
Abstract This article documents a series of exchanges between the authors and the senior Canadian statistician Jim Zidek in early 2026. The interview traces his life trajectory, surveying his principal contributions to statistics while offering insights into his motivations, successes, and challenges.
Christian Genest, Nancy E. Heckman
wiley   +1 more source

Extreme Rainfall Estimation Methods: A Review

Meteorological Applications, Volume 33, Issue 5, September/October 2026.
The figure illustrates the topics we cover and their inter‐relationships. Extreme value models assign probabilities to rainfall depths, often using regionalisation. They may also allow variation with season, duration, climate epoch or the spatial extent of rainfall. The resulting storm depths can be assigned spatial and/or temporal profiles.
Duncan Faulkner, Jonathan Tawn, Christine McKenna   +2 more
wiley   +1 more source