Results 41 to 50 of about 6,515 (153)

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

Ricci curvature of real hypersurfaces in complex hyperbolic space [PDF]

open access: yes, 2002
summary:First we prove a general algebraic lemma. By applying the algebraic lemma we establish a general inequality involving the Ricci curvature of an arbitrary real hypersurface in a complex hyperbolic space.
Chen, Bang-Yen
core  

Literacy and Land inequality in italy during Fascism. a Geographic-Historical analysis

open access: yes, 2022
This study aims to shade light on the effects of land inequality on the growth of human capital in the Italian countryside during the 1930s. The initial hypothesis, according to which land inequality contributed to slowing down the process of schooling ...
Zanibelli G., Ricci V.
core   +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

A note on $K$-functional, Modulus of smoothness, Jackson theorem and Nikolskii-Stechkin inequality on Damek-Ricci spaces [PDF]

open access: yes, 2021
In this paper we study approximation theorems for $L^2$-space on Damek-Ricci spaces. We prove direct Jackson theorem of approximations for the modulus of smoothness defined using spherical mean operator on Damek-Ricci spaces.
Kumar, Vishvesh   +3 more
core   +1 more source

Chen inequalities on warped product Legendrian submanifolds in Kenmotsu space forms and applications

open access: yesJournal of Inequalities and Applications
In the current work, we study the geometry and topology of warped product Legendrian submanifolds in Kenmotsu space forms F 2 n + 1 ( ϵ ) $\mathbb{F}^{2n+1}(\epsilon )$ and derive the first Chen inequality, including extrinsic invariants such as the mean
Fatemah Abdullah Alghamdi   +2 more
doaj   +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

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

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