Results 81 to 90 of about 63,399 (238)
Gradient Ricci Bourguignon solitons on perfect fluid space-times [PDF]
The main purpose of the present paper is about characterizing the properties of the perfect fluid space-time that admits the gradient Ricci-Bourguignon soliton. This gives some results about the stability of the energy-momentum tensor and also under some
Sakineh Hajiaghasi, Shahroud Azami
doaj +1 more source
Greening the Narrative: How Organizational Culture Impacts Environmental Disclosures
ABSTRACT In light of existential dangers to our planet, the urgency to reevaluate corporate practices has never been more palpable. With an emphasis on disclosures, this groundbreaking research sets out to analyze the complex relationship between corporate culture and its significant influence on environmental sustainability within firms.
Gurmani Chadha +2 more
wiley +1 more source
The Long-Time Behavior of the Ricci Tensor under the Ricci Flow [PDF]
We show that, given an immortal solution to the Ricci flow on a closed manifold with uniformly bounded curvature and diameter, the Ricci tensor goes to zero as . We also show that if there exists an immortal solution on a closed 3-dimensional manifold such that the product of the curvature and the square of the diameter is uniformly bounded, then this ...
openaire +2 more sources
A structural view of corporate purposes
European Management Review, EarlyView.
Margaret Blair +3 more
wiley +1 more source
100 years of GAMM: Motivation, history and achievements
Abstract The International Association of Applied Mathematics and Mechanics (Gesellschaft für Angewandte Mathematik und Mechanik, GAMM) was founded in 1923 with the goal to strengthen the field of scientific engineering by the foundation of an Engineering Association with strong scientific contacts to Applied Mathematics.
Wolfgang Ehlers
wiley +1 more source
Curvature tensor under the Ricci flow [PDF]
Consider the unnormalized Ricci flow ( g ij ) t = -2 R ij for t ∈ [0, T ), where T < ∞. Richard Hamilton showed that if the curvature operator is uniformly bounded under the flow for all times t ∈ [0, T ), then the solution can be extended beyond T . We prove that if the Ricci curvature is uniformly bounded under the flow for all times t ∈ [0, T ),
openaire +2 more sources
ABSTRACT This article advances debates on racial capitalism by reconceptualising it as globally connected yet regionally uneven, and as negotiated and resisted through unequal migrations. Drawing on interviews with Black and Muslim Italians living in Britain or returned to Italy, it explores how participants and their families use EU mobility rights to
Simone Varriale
wiley +1 more source
Axially Symmetric-dS Solution in Teleparallel f(T) Gravity Theories
We apply a tetrad field with six unknown functions to Einstein field equations. Exact vacuum solution, which represents axially symmetric-dS spacetime, is derived.
Gamal G. L. Nashed
doaj +1 more source
Ricci-Notation Tensor Framework for Model-based Approaches to Imaging [PDF]
Dileepan Joseph
openalex +1 more source
Beyond the Hodge theorem: Curl and asymmetric pseudodifferential projections
Abstract We develop a new approach to the study of spectral asymmetry. Working with the operator curl:=∗d$\operatorname{curl}:={*}\mathrm{d}$ on a connected oriented closed Riemannian 3‐manifold, we construct, by means of microlocal analysis, the asymmetry operator — a scalar pseudodifferential operator of order −3$-3$.
Matteo Capoferri, Dmitri Vassiliev
wiley +1 more source

