Results 41 to 50 of about 18,606 (130)

On Non‐Compact Extended Bach Solitons

open access: yesMathematische Nachrichten, Volume 299, Issue 5, Page 1140-1151, May 2026.
ABSTRACT We study the characterization of non‐compact solitons of the extended Bach flow, known as an extended Bach soliton. We prove that a weakly conformally flat extended Bach soliton (Mn,g,V)$(M^n,g,V)$ with harmonic Weyl tensor is Bach‐flat and the potential vector field V$V$ is conformal.
Rahul Poddar
wiley   +1 more source

Slant Submersions in Generalized Sasakian Space Forms and Some Optimal Inequalities

open access: yesAxioms
This research examines key inequalities associated with the scalar and Ricci curvatures of slant submersions within generalized Sasakian space forms (GSSFs). We establish significant geometric constraints and conduct a detailed analysis of the conditions
Md Aquib
doaj   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

First and second sharp constants in Riemannian Gagliardo–Nirenberg inequalities

open access: yesMathematische Nachrichten, Volume 299, Issue 3, Page 617-636, March 2026.
Abstract Let (M,g)$(M,g)$ be a smooth compact Riemannian manifold of dimension n≥2$n\ge 2$, 1
Jurandir Ceccon   +2 more
wiley   +1 more source

Witten genera of complete intersections

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract We prove vanishing results for Witten genera of string generalized complete intersections in homogeneous Spinc$\text{Spin}^c$‐manifolds and in other Spinc$\text{Spin}^c$‐manifolds with Lie group actions. By applying these results to Fano manifolds with second Betti number equal to one we get new evidence for a conjecture of Stolz.
Michael Wiemeler
wiley   +1 more source

Riemannian invariants for warped product submanifolds in Qεm×R{{\mathbb{Q}}}_{\varepsilon }^{m}\times {\mathbb{R}} and their applications

open access: yesOpen Mathematics
This article investigates the geometric and topologic of warped product submanifolds in Riemannian warped product Qεm×R{{\mathbb{Q}}}_{\varepsilon }^{m}\times {\mathbb{R}}.
Li Yanlin, Alshehri Norah, Ali Akram
doaj   +1 more source

Chen inequality for general warped product submanifold of Riemannian warped products I×fSm(c)

open access: yesPhysica Scripta
In the present paper, we investigate the geometry and topology of warped product submanifolds in Riemannian warped product I×fSm(c) and obtain the first Chen inequality that involves extrinsic invariants like the mean curvature and the length of the ...
F. Mofarreh, Akram Ali
semanticscholar   +1 more source

Multinational Enterprises' ESG Strategy Against Institutional Pressures in Emerging Markets: The Moderating Effect of Digitalization Capability

open access: yesBusiness Strategy and the Environment, Volume 34, Issue 8, Page 10373-10394, December 2025.
ABSTRACT This study examined the institutional pressures that influence the implementation of a multinational enterprises' (MNEs) environmental, social, and governance (ESG) strategy in emerging markets. It investigated the sustainable performance (i.e., financial, social, and environmental performance) resulting from MNEs' strategic responses to ...
Min‐Jae Lee   +3 more
wiley   +1 more source

Unlocking Climate Action: A Systematic Review of Pathways to Climate‐Friendly Cities Through Behavioral Change

open access: yesSustainable Development, Volume 33, Issue S1, Page 517-544, November 2025.
ABSTRACT Maintaining planetary borders is crucial to prevent significant Earth system shifts. Climate change, primarily driven by carbon emissions, necessitates reducing urban carbon footprints. Cities contribute significantly to emissions, and citizens play a crucial role in creating ecologically sustainable cities by changing attitudes.
Naghmeh Mohammadpourlima   +2 more
wiley   +1 more source

On Ricci curvature of submanifolds in statistical manifolds of constant (quasi-constant) curvature

open access: yes, 2020
In 1999, B. Y. Chen established a sharp inequality between the Ricci curvature and the squared mean curvature for an arbitrary Riemannian submanifold of a real space form. This inequality was extended in 2015 by M. E. Aydin et al.
A. Siddiqui, M. Shahid, Jae Won Lee
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy