Einstein Manifold: A manifold where the Ricci tensor is proportional to the metric, representing a solution of Einstein’s field equations in vacuum or with a cosmological constant.

The very definition of an Einstein metric implies that all its geometry is encoded in the Weyl tensor. With this in mind, in this paper we derive higher-order Bochner-type formulas for the Weyl tensor ...

Regarding Matthew Hennessey’s op-ed “JD Vance Defies the Market’s Gravity” (June 3): I always find it amusing when people assert that economics isn’t a science. Such statements suggest ...

Mihalis Dafermos holds the Lowndean Chair of Astronomy and Geometry at the University of Cambridge, UK. Yvonne Choquet-Bruhat was a giant of the mathematical study of Albert Einstein’s general ...

Today, groundbreaking physicist Albert Einstein would very possibly be deported. By the time Einstein died in April 1955, the Federal Bureau of Investigation had built a secret file on him that ...

In a statement posted to X on Monday, Coolmore said: "Group 3 Marble Hill Stakes winner Albert Einstein unfortunately will not run at Royal Ascot due to a sprained joint. He will have an easy three ...

Jon Volk is a well-known maker of custom exhaust manifolds for high-horsepower BMWs. Watch him work his design magic and cook up a header for a 1,000-plus horsepower M3.

A new young Aidan O’Brien star has been ruled out of Royal Ascot. Albert Einstein, a home-bred son of Wootton Bassett who is from the family of ‘Iron Horse’ Giant’s Causeway, has already ...

So, while most people granted the gift of visiting Lamborghini’s famed Polo Storico restoration centre in Sant’Agata ...

Bose–Einstein condensates are a state of matter in which all the constituent particles exist in their lowest energy level. The Pauli Exclusion Principle prevents more than one electron (an ...

Einstein, A., Podolsky, B. and Rosen, N. (1935) Can Quantum-Mechanical Description of Physical Reality Be Considered Complete Physical Review, 47, ... Representation of Physical Fields as Einstein ...