Results 51 to 60 of about 777 (268)

On balls and totally geodesic submanifolds [PDF]

Annales Polonici Mathematici, 1984
Let (M,g) be a Riemannian manifold and let N be a submanifold of (M,g). Further, let \(x\in N\) and denote by \(B_ N(x,r)\) (or \(B_ M(x,r)\), respectively) the open geodesic ball on N (or M, respectively) with center x and radius r. N is said to be \(\epsilon\)-regular if \(B_ N(x,r)=B_ M(x,r)\cap N\) for any \(x\in N\) and \(r\in (0,\epsilon).\) In ...
openaire   +1 more source

Cortical Network Overconnectivity Relates to Sensory, Cognitive, and Social Dimensions in Young Children With Autism Spectrum Disorder

Autism Research, EarlyView.
ABSTRACT The heterogeneity in both the neurobiological mechanisms and the phenotypic presentations of autism spectrum disorder (ASD) poses a major challenge to clinical and translational research. Alterations in functional connectivity (FC) have been associated with ASD, yet it remains unclear whether and how divergent brain network properties may ...
Borja Rodríguez‐Herreros, Ahmad Mheich, Joana Maria Almeida Osório, Sonia Richetin, Vincent Junod, Lorène Arnold, Victoria Aeschbach, Lilia Nora Adamou, Katherina Gschwend, Laura Mendes, David Romascano, Paola Yu, Marine Jequier Gygax, Anne M. Maillard, Micah M. Murray, Mahmoud Hassan, Nadia Chabane   +16 more
wiley   +1 more source

From Centrality to Sustainability: How Connected Boards Shape Waste Management Outcomes

Business Strategy and the Environment, EarlyView.
ABSTRACT The escalating climate crisis has elevated waste management from an operational concern to a critical issue of corporate governance. However, the role of board connectedness in shaping firms' waste practices remains largely unexplored. Drawing on resource dependency and social capital theories, this study examines how board network centrality ...
Irfan Haider Shakri, Anh Tuan Nguyen, FNU Pratima   +2 more
wiley   +1 more source

On Surfaces of Exceptional Lorentzian Lie Groups with a Four-Dimensional Isometry Group

Mathematics
In total, geodesic surfaces and their generalizations, namely totally umbilical and parallel surfaces, are well-known topics in Submanifold Theory and have been intensively studied in three-dimensional ambient spaces, both Riemannian and Lorentzian.
Giovanni Calvaruso, Lorenzo Pellegrino
doaj   +1 more source

Almost complex surfaces in the nearly Kaehler S6

International Journal of Mathematics and Mathematical Sciences, 1992
It is shown that a compact almost complex surface in S6 is either totally geodesic or the minimum of its Gaussian curvature is less than or equal to 1/3.
Sharief Deshmukh
doaj   +1 more source

The Mechanism of Visible‐Light Photochemical Rearrangements of Conjugated Amide Enolates

Chemistry – A European Journal, EarlyView.
Visible light irradiation of extended enolates of N‐benzylamides leads to homolytic C─N Bond cleavage, generating a biradical. Computational and mechanistic studies suggest rapid radical recombination within a solvent cage to give either ring‐expanded or rearranged products. ABSTRACT Deprotonation of conjugated amides forms colored solutions of lithium
James Mortimer, William Terry‐Wright, Basile F. E. Curchod, Jonathan Clayden   +3 more
wiley   +1 more source

Compact Manifolds With Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has a uniformly almost nilpotent fundamental group. Leftover questions and conjectures, have asked if in this context the fundamental group is actually uniformly almost abelian. The main goal of this work is to construct examples (Mk9,gk)$(
Elia Bruè, Aaron Naber, Daniele Semola
wiley   +1 more source

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

Deep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source

On six-dimensional Vaisman — Gray submanifolds of the octave algebra

Дифференциальная геометрия многообразий фигур, 2019
The W1 + W4 class of almost Hermitian manifolds (in accordance with the Gray — Hervella classification) is usually named as the class of Vaisman — Gray manifolds.
M. Banaru
doaj   +1 more source

Inhibitory Control Tells Only Part of the Story: Reward Sensitivity Moderates the Prospective Link Between the No‐Go P3 and Emerging Eating Pathology in Early Adolescents

International Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Early adolescence is characterized by the onset of mental health problems, including eating pathology (e.g., body image concerns, restrictive eating). Inhibitory control (IC) and reward sensitivity (RS) are two key traits that have been implicated in the development of eating problems.
Jaron X. Y. Tan, Lisa Brooks, Pan Liu
wiley   +1 more source