with vanishing divergence
1Navier–Stokes equations — Continuum mechanics …
2Raychaudhuri equation — In general relativity, Raychaudhuri s equation is a fundamental result describing the motion of nearby bits of matter.The equation is important as a fundamental lemma for the Penrose Hawking singularity theorems and for the study of exact… …
3Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …
4Arbitrage — For the upcoming film, see Arbitrage (film). Not to be confused with Arbitration. In economics and finance, arbitrage (IPA: /ˈɑrbɨtrɑːʒ/) is the practice of taking advantage of a price difference between two or more markets: striking a… …
5Scalar-vector-tensor decomposition — In cosmological perturbation theory, the scalar vector tensor decomposition is a decomposition of the most general linearized s of the Friedmann Robertson Walker metric into components according to their transformations under spatial rotations.… …
6Charge invariance — refers to the fixed electrostatic potential of a particle, regardless of speed. For example, an electron has a specific rest charge. Accelerate that electron, and the charge remains the same (as opposed to the relativistic mass and energy… …
7Gravitational energy — is the energy associated with the gravitational field.According to classical mechanics, between two or more masses (or other forms of energy momentum) a gravitational potential energy exists. Conservation of energy requires that this… …
8QCD vacuum — The QCD vacuum is the vacuum state of quantum chromodynamics (QCD). It is an example of a non perturbative vacuum state, characterized by many non vanishing condensates such as the gluon condensate or the quark condensate. These condensates… …
9Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
10Hegel’s logic and philosophy of mind — Willem deVries LOGIC AND MIND IN HEGEL’S PHILOSOPHY Hegel is above all a systematic philosopher. Awe inspiring in its scope, his philosophy left no subject untouched. Logic provides the central, unifying framework as well as the general… …
