Date: May 30, 2013 11:41 AM
Author: Sam Wormley
Subject: New mathematical model links space-time theories
New mathematical model links space-time theories

> http://phys.org/news/2013-05-mathematical-links-space-time-theories.html

> Space-time is usually understood to describe space existing in three

> dimensions, with time playing the role of a fourth dimension and all

> four coming together to form a continuum, or a state in which the

> four elements can't be distinguished from each other.

> Flat space-time and negative space-time describe an environment in

> which the Universe is non-compact, with space extending infinitely,

> forever in time, in any direction. The gravitational forces, such as

> the ones produced by a star, are best described by flat-space time.

> Negatively curved space-time describes a Universe filled with

> negative vacuum energy. The mathematics of holography is best

> understood for negatively curved space-times.

> Professor Skenderis has developed a mathematic model which finds

> striking similarities between flat space-time and negatively curved

> space-time, with the latter however formulated in a negative number

> of dimensions, beyond our realm of physical perception.

>

>

> Read more at:

> http://phys.org/news/2013-05-mathematical-links-space-time-theories.html#jCp