Results 81 to 90 of about 502,153 (332)
Bracketing brackets with bras and kets [PDF]
arXiv, 2020 Brackets are an essential component in aircraft manufacture and design, joining parts together, supporting weight, holding wires, and strengthening joints. Hundreds or thousands of unique brackets are used in every aircraft, but manufacturing a large number of distinct brackets is inefficient and expensive.
arxiv
Toda brackets in n-angulated categories [PDF]
arXiv, 2023 We introduce Toda brackets for n-angulated categories and show that the various definitions of Toda brackets coincide. We prove juggling formulas for these Toda brackets generalizing the triangulated case. Following that, we generalize a theorem due to Heller in the triangulated setting to the setting of n-angulated categories.
arxiv
Quadratic Poisson brackets compatible with an algebra structure [PDF]
J.Phys. A27 (1994) L693-L696, 1994 Quadratic Poisson brackets on a vector space equipped with a bilinear multiplication are studied. A notion of a bracket compatible with the multiplication is introduced and an effective criterion of such compatibility is given. Among compatible brackets, a subclass of coboundary brackets is described, and such brackets are enumerated in a number of ...
arxiv +1 more source
Functionals and the Quantum Master Equation
, 2005 The quantum master equation is usually formulated in terms of functionals of the components of mappings from a space-time manifold M into a finite-dimensional vector space. The master equation is the sum of two terms one of which is the anti-bracket (odd
A. S. Schwarz +8 more
core +2 more sources
An Alternate Approach to the Lie Bracket on Hochschild Cohomology [PDF]
, 2014 We define Gerstenhaber's graded Lie bracket directly on complexes other than the bar complex, under some conditions. The Koszul complex of a Koszul algebra in particular satisfies our conditions.
C. Negron, S. Witherspoon
semanticscholar +1 more source
Arthritis Care &Research, EarlyView.Objective The increasing burden associated with low back pain (LBP) is a critical issue. This is a novel analysis of trends in risk factors for LBP aiming to identify risk factors that require further attention or consideration in global policies to reduce the burden of LBP.
Katharine E. Roberts +5 more
wiley +1 more source
On the quantization of Poisson brackets [PDF]
Advances in Mathematics Volume 127, Issue 1, 15 April 1997, Pages
73-93, 1995 In this paper we introduce two classes of Poisson brackets on algebras (or on sheaves of algebras). We call them locally free and nonsingular Poisson brackets. Using the Fedosov's method we prove that any locally free nonsingular Poisson bracket can be quantized.
arxiv +1 more source
The Poisson bracket on free null initial data for gravity
, 2009 Free initial data for general relativity on a pair of intersecting null hypersurfaces are well known, but the lack of a Poisson bracket and concerns about caustics have stymied the development of a constraint free canonical theory. Here it is pointed out
Michael P. Reisenberger, R. M. Wald
core +1 more source
Advanced Engineering Materials, EarlyView.This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach +6 more
wiley +1 more source
Journal of Functional BiomaterialsThe aim of the study is to assess the impact of mechanical surface treatments on the shear bond strength (SBS) of orthodontic brackets bonded to three-dimensional (3D) printed and milled CAD/CAM provisional materials.
Abdulaziz A. Alzaid +7 more
doaj +1 more source