Results 31 to 40 of about 3,074,734 (136)

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

A Qualitative Analysis of Social Indicators in Highly Polluting Sectors: The Challenge for Multifaceted Standards in Emerging Economies

open access: yesBusiness Ethics, the Environment &Responsibility, Volume 35, Issue 3, Page 1931-1951, July 2026.
ABSTRACT The institutional current effort to regulate and increase the quantity and quality of sustainability information reported by companies is undeniable. However, the growing complexity of sustainability reporting standards creates isolated compartments for each major dimension of sustainability, leaving aside their interconnectedness and combined
M. Marco‐Fondevila   +3 more
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   +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

Cohomogeneity‐one solitons in Laplacian flow: Local, smoothly‐closing and steady solitons

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We initiate a systematic study of cohomogeneity‐one solitons in Bryant's Laplacian flow of closed G2$\text{G}_2$‐structures on a 7‐manifold, motivated by the problem of understanding finite‐time singularities of that flow. Here, we focus on solitons with symmetry groups Sp(2)${\rm Sp}(2)$ and SU(3)${\rm SU}(3)$; in both cases, we prove the ...
Mark Haskins, Johannes Nordström
wiley   +1 more source

Global locational inequality: Assessing unequal exchange effects [PDF]

open access: yes, 2022
Growth in international trade between countries at different levels of development is one of the main drivers of economic globalization. This phenomenon relates to the new international division of labour in which an Emerging Periphery, hosting the ...
Ricci Andrea
core   +1 more source

Curvature Invariants on Partially Totally Real Submanifolds in Complex Space Forms

open access: yesMathematics
Kähler manifolds are the most studied complex manifolds. A Kähler manifold with constant holomorphic sectional curvature is said to be a complex space form. There are special classes of submanifolds in Kähler manifolds. Recently, Poyraz et al.
Ion Mihai   +3 more
doaj   +1 more source

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

Chen-Ricci inequalities for Riemannian maps and their applications

open access: yes, 1992
AMS Special Session Differential Geometry and Global Analysis, Honoring the Memory of Tadashi Nagano (1930-2017) at Joint Mathematical Meeting -- JAN 16, 2020 -- Denver, CORiemannian maps between Riemannian manifolds, originally introduced by A.E ...
Lee, Chul Woo   +4 more
core   +1 more source

SHARP INEQUALITIES INVOLVING THE RICCI CURVATURE FOR RIEMANNIAN SUBMERSIONS

open access: yes, 2017
In this paper, we obtain sharp inequalities on Riemannian manifolds admitting a Riemannian submersion and give some characterizations using these inequalities.
Gülbahar, Mehmet   +2 more
core   +2 more sources

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