Results 61 to 70 of about 56,617 (265)
Relative differential K-characters
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We define a group of relative differential K-characters associated with a smooth map between two smooth compact manifolds. We show that this group fits into a short exact sequence as in the non-relative case.
Mohamed Maghfoul
doaj
(−1)-form symmetries from M-theory and SymTFTs
Journal of High Energy PhysicsWe explore (−1)-form symmetries within the framework of geometric engineering in M-theory. By constructing the Symmetry Topological Field Theory (SymTFT) for selected 5d N $$ \mathcal{N} $$ = 1, 4d N $$ \mathcal{N} $$ = 2 and 4d N $$ \mathcal{N} $$ = 1 ...
Marwan Najjar +2 more
doaj +1 more source
Geometric group theory and arithmetic diameter [PDF]
Publicationes Mathematicae Debrecen, 2011 7 pages.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization
Advanced Engineering Materials, EarlyView.Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier +17 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann +4 more
wiley +1 more source
Quantum geometric machine learning for quantum circuits and control
New Journal of Physics, 2020 The application of machine learning techniques to solve problems in quantum control together with established geometric methods for solving optimisation problems leads naturally to an exploration of how machine learning approaches can be used to enhance ...
Elija Perrier, Dacheng Tao, Chris Ferrie
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An Introduction to Geometric Group Theory
This book provides a self-contained introduction to geometric group theory. The topics range from an introduction of Cayley and Schreier graphs to Gromov's theorem on groups of polynomial growth and amenability. We discuss the ping-pong lemma, quasi-isometries, growth of groups, hyperbolicity, and other related notions.
Belolipetsky, Mikhail +1 more
openaire +2 more sources
Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales
Advanced Engineering Materials, EarlyView.Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik +7 more
wiley +1 more source
Symmetries beyond branes: geometric engineering and isometries
Journal of High Energy PhysicsIn this work we consider the relation between finite isometries of the internal space and symmetries of the transverse field theory in Geometric Engineering.
Mario De Marco, Shani Nadir Meynet
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