Sub-Lorentzian Geometry of Curves and Surfaces in a Lorentzian Lie Group
Advances in Mathematical Physics, 2022 We consider the sub-Lorentzian geometry of curves and surfaces in the Lie group E1,1. Firstly, as an application of Riemannian approximants scheme, we give the definition of Lorentzian approximants scheme for E1,1 which is a sequence of Lorentzian ...
Haiming Liu, Jianyun Guan
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Intrinsic spin Nernst effect of magnons in a noncollinear antiferromagnet
Physical Review Research, 2020 We investigate the intrinsic magnon spin current in a noncollinear antiferromagnetic insulator. We introduce a definition of the magnon spin current in a noncollinear antiferromagnet and find that it is in general nonconserved, but for certain symmetries
Bo Li +2 more
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Journal of the American Statistical Association, 2009 The aim of this paper is to develop an intrinsic regression model for the analysis of positive-definite matrices as responses in a Riemannian manifold and their association with a set of covariates, such as age and gender, in a Euclidean space. The primary motivation and application of the proposed methodology is in medical imaging.
Zhu, Hongtu +5 more
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Null Geodesic Congruences, Asymptotically-Flat Spacetimes and Their Physical Interpretation
Living Reviews in Relativity, 2009 A priori, there is nothing very special about shear-free or asymptotically shear-free null geodesic congruences. Surprisingly, however, they turn out to possess a large number of fascinating geometric properties and to be closely related, in the context ...
Timothy M. Adamo +2 more
doaj
Null Geodesic Congruences, Asymptotically-Flat Spacetimes and Their Physical Interpretation
Living Reviews in Relativity, 2012 A priori, there is nothing very special about shear-free or asymptotically shear-free null geodesic congruences. Surprisingly, however, they turn out to possess a large number of fascinating geometric properties and to be closely related, in the context ...
Timothy M. Adamo +2 more
doaj
Crystal tensor properties of magnetic materials with and without spin-orbit coupling. Application of spin point groups as approximate symmetries. [PDF]
Acta Crystallogr A Found AdvEtxebarria J +3 more
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The Dynamical Evolution Parameter in Manifestly Covariant Quantum Gravity Theory. [PDF]
Entropy (Basel)Cremaschini C.
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Equivariant geometric convolutions for dynamical systems on vector and tensor images. [PDF]
Philos Trans A Math Phys Eng SciGregory WG +5 more
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Transport and Response Coefficients in Second-Order Dissipative Relativistic Hydrodynamics with Quantum Corrections: Probing the Quark-Gluon Plasma. [PDF]
Entropy (Basel)Kuntz I, da Rocha R.
europepmc +1 more source
The Port-Hamiltonian Structure of Continuum Mechanics. [PDF]
J Nonlinear SciRashad R, Stramigioli S.
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