Results 51 to 60 of about 512 (163)
Identification of random coefficient latent utility models
Quantitative Economics, Volume 16, Issue 4, Page 1223-1265, November 2025.This paper provides nonparametric identification results for random coefficient distributions in perturbed utility models. We cover discrete choice and models of multiple purchases. We establish identification using variation in mean quantities. The results apply even when an analyst observes only aggregate demands but not whether goods are chosen ...
Roy Allen, John Rehbeck
wiley +1 more source
Unified gross substitutes and inverse isotonicity for equilibrium problems
Theoretical Economics, Volume 20, Issue 3, Page 941-971, July 2025.We introduce a notion of substitutability for correspondences and establish a monotone comparative static result. More precisely, we introduce the notions of unified gross substitutes and nonreversingness and show that if Q:P⇉Q is a supply correspondence defined on a set of prices P, which is a sublattice of RN, and Q satisfies these two properties ...
Alfred Galichon +2 more
wiley +1 more source
Multiple homoclinic solutions for a class of nonhomogeneous Hamiltonian systems
Boundary Value Problems, 2018 By introducing a new superquadratic condition, we obtain the existence of two nontrivial homoclinic solutions for a class of perturbed second order Hamiltonian systems which are obtained by the mountain pass theorem and Ekeland’s variational principle.
Chunhua Deng, Dong-Lun Wu
doaj +1 more source
Pontryagin´s principle for state-constrained boundary control problems of semilinear parabolic equations [PDF]
, 1997 This paper deals with state-constrained optimal control problems governed by semilinear parabolic equations. We establish a minimum principle of Pontryagin's type.
Barbu V. +8 more
core +2 more sources
One remark to Ekeland's variational principle
Computers & Mathematics with Applications, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arutyunov, A., Bobylev, N., Korovin, S.
openaire +1 more source
Social Policy &Administration, Volume 59, Issue 3, Page 438-453, May 2025.Abstract Combining quantitative data from a national survey (n = 252) with qualitative interviews with frontline social workers (n = 16), this manuscript examines the ways in which bureaucracy and managerialism has impacted social work in Northern Ireland, with specific attention to relationship‐based practise.
Katheryn Margaret Pascoe
wiley +1 more source
Exact and approximate vector Ekeland variational principles
Optimization, 2021 Producción ...
T. Q. Bao +3 more
openaire +2 more sources
The Future of Artificial Intelligence in Mental Health Nursing Practice: An Integrative Review
International Journal of Mental Health Nursing, Volume 34, Issue 1, February 2025.ABSTRACT Artificial intelligence (AI) has been increasingly used in delivering mental healthcare worldwide. Within this context, the traditional role of mental health nurses has been changed and challenged by AI‐powered cutting‐edge technologies emerging in clinical practice. The aim of this integrative review is to identify and synthesise the evidence
Lucian H. Milasan, Daniel Scott‐Purdy
wiley +1 more source
Boundary Value ProblemsBy using the well-known mountain-pass theorem and Ekeland’s variational principle, we prove that there exist at least two fully nontrivial solutions for a ( p , q ) $(p,q)$ -Kirchhoff elliptic system with the Dirichlet boundary conditions and ...
Zhangyi Yu, Junping Xie, Xingyong Zhang
doaj +1 more source
A theoretical constructivisation of mathematical economics [PDF]
, 2003 This thesis deals with some problems in mathematical economics, looked at constructively; that is, with intuitionistic logic. In particular, we look at the connection between approximate Pareto optima and approximate equilibria.
Popa, Gabriela
core +1 more source