Results 81 to 90 of about 120,918 (284)

New Results on a Nonlocal Sturm–Liouville Eigenvalue Problem with Fractional Integrals and Fractional Derivatives

Fractal and Fractional
In this paper, we investigate the eigenvalue properties of a nonlocal Sturm–Liouville equation involving fractional integrals and fractional derivatives under different boundary conditions.
Yunyang Zhang, Shaojie Chen, Jing Li
doaj   +1 more source

When Collaboration Bridges or Breaks: A Systematic Review of Emerging Trends in Supply Chain Resilience and Sustainability

Business Strategy and the Environment, EarlyView.
ABSTRACT Widespread digital adoption has challenged our understanding of how these tools reshape collaboration, trust and sustainability outcomes across different institutional and network contexts. As networks now pursue resilience and sustainable development in parallel, we map emerging research directions and identify how collaboration and ...
Ari Carisza Graha Prasetia, Luca Urciuoli   +1 more
wiley   +1 more source

New Well-Posed boundary conditions for semi-classical Euclidean gravity

Journal of High Energy Physics
We consider four-dimensional Euclidean gravity in a finite cavity. Dirichlet conditions do not yield a well-posed elliptic system, and Anderson has suggested boundary conditions that do.
Xiaoyi Liu, Jorge E. Santos, Toby Wiseman   +2 more
doaj   +1 more source

Global Existence and Extinction of Weak Solutions to a Class of Semiconductor Equations with Fast Diffusion Terms

Journal of Inequalities and Applications, 2008
We consider the transient drift-diffusion model with fast diffusion terms. This problem is not only degenerate but also singular. We first present existence result for general nonlinear diffusivities for the Dirichlet-Neumann mixed boundary value problem.
Bin Wu
doaj   +1 more source

Interior Regularity Estimates for a Degenerate Elliptic Equation with Mixed Boundary Conditions

Axioms, 2018
The Marchaud fractional derivative can be obtained as a Dirichlet-to–Neumann map via an extension problem to the upper half space. In this paper we prove interior Schauder regularity estimates for a degenerate elliptic equation with mixed Dirichlet ...
Jean-Daniel Djida, Arran Fernandez
doaj   +1 more source

Finite size effects in the spin-1 XXZ and supersymmetric sine-Gordon models with Dirichlet boundary conditions

, 2006
Starting from the Bethe Ansatz solution of the open integrable spin-1 XXZ quantum spin chain with diagonal boundary terms, we derive a set of nonlinear integral equations (NLIEs), which we propose to describe the boundary supersymmetric sine-Gordon model
Ahn, Ahn, Ahn, Ahn, Ahn, Ahn, Alcaraz, Babujian, Bajnok, Bajnok, Bajnok, Baseilhac, Belavin, Bernard, Bethe, Cao, Cao, Cardy, Cardy, Changrim Ahn, Chim, Destri, Destri, Destri, Di Francesco, Di Vecchia, Dorey, Dunning, Fendley, Ferrara, Feverati, Feverati, Feverati, Fioravanti, Ghoshal, Ginsparg, Girardello, Hegedűs, Hruby, Inami, Inami, Itoyama, Junji Suzuki, Kirillov, Kirillov, Klümper, Klümper, Klümper, Kulish, Kulish, Leclair, Leclair, Maldacena, Mattik, Mezincescu, Nepomechie, Nepomechie, Nepomechie, Nepomechie, Nepomechie, Nepomechie, Nepomechie, Orbach, Rafael I. Nepomechie, Reshetikhin, Reshetikhin, Reshetikhin, Saleur, Sasaki, Shankar, Sklyanin, Smirnov, Sogo, Suzuki, Suzuki, Yurov, Zamolodchikov, Zamolodchikov, Zamolodchikov, Zamolodchikov, Zamolodchikov   +80 more
core   +1 more source

Partial identification with categorical data and nonignorable missing outcomes

Canadian Journal of Statistics, EarlyView.
Abstract Nonignorable missing outcomes are common in real‐world datasets and often require strong parametric assumptions to achieve identification. These assumptions can be implausible or untestable, and so we may wish to forgo them in favour of partially identified models that narrow the set of a priori possible values to an identification region.
Daniel Daly‐Grafstein, Paul Gustafson
wiley   +1 more source

The Evolution of Environmental, Social, and Governance (ESG) and Risk and Its Implications for Sustainable Finance: A Systematic Literature Review

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Recent literature addressing ESG and risk has increased by 70% since mid‐2022, reflecting a growing interest in sustainable finance. Guided by the PRISMA flow diagram, this paper employs a hybrid systematic review methodology, combining bibliometric analysis with content analysis, to provide a comprehensive overview of the evolution of ESG and
Fahad Asmi, Alain Neher, Alfred Wong
wiley   +1 more source

On a stochastic Burgers equation with Dirichlet boundary conditions

International Journal of Mathematics and Mathematical Sciences, 2003
We consider the one-dimensional Burgers equation perturbed by a white noise term with Dirichlet boundary conditions and a non-Lipschitz coefficient. We obtain existence of a weak solution proving tightness for a sequence of polygonal approximations for ...
Ekaterina T. Kolkovska
doaj   +1 more source

On spectral question of the Cauchy-Riemann operator with homogeneous boundary value conditions

Қарағанды университетінің хабаршысы. Математика сериясы, 2018
In this paper we consider the eigenvalue problem for the Cauchy - Riemann operator with homogeneous Dirichlet type boundary conditions. The statement of the problem is justified to the theorem of M. Otelbaev and A.N.
N.S. Imanbaev, B.E. Kanguzhin
doaj   +1 more source