Results 81 to 90 of about 15,806 (304)

A global theory of algebras of generalized functions II: tensor distributions

, 2012
We extend the construction of [19] by introducing spaces of generalized tensor fields on smooth manifolds that possess optimal embedding and consistency properties with spaces of tensor distributions in the sense of L. Schwartz.
Steinbauer, Roland, Vickers, James, Grosser, Michael, Kunzinger, Michael   +3 more
core  

PERFECT FLUID SPACETIMES WITH HARMONIC GENERALIZED CURVATURE TENSOR [PDF]

We show that n-dimensional perfect fluid spacetimes with divergence-free conformal curvature tensor and constant scalar curvature are generalized RobertsonWalker (GRW) spacetimes; as a consequence a perfect fluid Yang pure space is a GRW spacetime.
Suh, Young Jin, Mantica, Carlo Alberto, De, Uday Chand, Molinari, Luca Guido   +3 more
core   +1 more source

Toward Knowledge‐Based Workflows: A Semantic Approach to Atomistic Simulations for Mechanical and Thermodynamic Properties

Advanced Engineering Materials, EarlyView.
Knowledge‐based atomistic workflows are presented for mechanical and thermodynamic properties. By coupling modular simulations with ontology‐aligned metadata and provenance, Fe case studies on elastic behavior, defects, thermal properties, and Hall–Petch strengthening reveal how FAIR, queryable, and reusable simulation data can be generated. Mechanical
Abril Azócar Guzmán, Hoang‐Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld   +5 more
wiley   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Doubly warped product manifolds: Investigations through the projective curvature tensor and relativistic applications

AIP Advances
This paper introduces a description of a doubly warped product manifold, taking into account certain conditions related to the projective curvature tensor.
Abdallah Abdelhameed Syied, Uday Chand De, Nasser Bin Turki, Rajesh Kumar   +3 more
doaj   +1 more source

The Riemann Curvature Tensor

, 2019
A tensor is a mathematical object that has applications in areas including physics, psychology, and artificial intelligence. The Riemann curvature tensor is a tool used to describe the curvature of n-dimensional spaces such as Riemannian manifolds in the
Cox, Jennifer
core  

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Exact and Approximate Quadratures for Curvature Tensor Estimation

, 2005
Accurate estimations of geometric properties of a surface from its discrete approximation are important for many computer graphics and geometric modeling applications.
Belyaev, A., Seidel, H. ; https://orcid.org/, Langer, T.   +2 more
core   +1 more source

Pseudo-Bochner curvature tensor on Hermitian manifolds

, 1999
Our main purpose of this paper is to introduce a natural generalization $B_H$ of the Bochner curvature tensor on a Hermitian manifold $M$ provided with the Hermitian connection. We will call $B_H$ the pseudo-Bochner curvature tensor.
Matsuo, Koji
core  

A Study on $\phi $-recurrence $\tau $-curvature tensor in $(k,\mu )$-contact metric manifolds

, 2018
summary:In this paper we study $\phi $-recurrence $\tau $-curvature tensor in\\ $(k,\mu )$-contact metric ...
Bagewadi, C.S., Ingalahalli, Gurupadavva
core   +1 more source