ABCD — is a list of the first four letters in the English alphabet. It may also refer to:In medicine:* ABC (medical), also known as ABCD, a mnemonic for steps in resuscitation * ABCD rating, a staging system for prostate cancer * ABCD syndrome, a… … Wikipedia
ABCD — puede referirse a: ABC Paulista, una región industrial de Brasil. ABCD, un suplemento cultural del diario ABC de España. Esta página de desambiguación cataloga artículos relacionados con el mismo título. Si llegaste aquí a través de … Wikipedia Español
ABC Region — The term ABC Region is an industrial region in Greater São Paulo, Brazil. The name refers to three smaller cities bordering on São Paulo, capital of the Brazilian state of the same name. Originally, these three cities were Santo André, São… … Wikipedia
Marisa Letícia Lula da Silva — Her Excellency Marisa Letícia Lula da Silva First Lady of Brazil In office January 1, 2003 – January 1, 201 … Wikipedia
São Paulo — This article is about the city. For the state, see São Paulo (state). For other uses, see São Paulo (disambiguation). São Paulo Municipality Município de São Paulo Municipality of São Paulo … Wikipedia
Petrov classification — In differential geometry and theoretical physics, the Petrov classification describes the possible algebraic symmetries of the Weyl tensor at each event in a Lorentzian manifold.It is most often applied in studying exact solutions of Einstein s… … Wikipedia
Разложение Риччи — Эта статья содержит незавершённый перевод с иностранного языка. Вы можете помочь проекту, переведя её до конца. Если вы знаете, на каком языке написан фрагмент, укажите его в этом шаблоне. В псевдоримановой геометр … Википедия
Gallo — Pour les articles homonymes, voir Gallo (homonymie). Gallo Galo Parlée en France Région Bretagne Nombre de locuteurs 200 000 … Wikipédia en Français
Ricci decomposition — In semi Riemannian geometry, the Ricci decomposition is a way of breaking up the Riemann curvature tensor of a pseudo Riemannian manifold into pieces with useful individual algebraic properties. This decomposition is of fundamental importance in… … Wikipedia
Lorentz covariance — In standard physics, Lorentz covariance is a key property of spacetime that follows from the special theory of relativity, where it applies globally. Local Lorentz covariance refers to Lorentz covariance applying only locally in an infinitesimal… … Wikipedia