High Quality Content by WIKIPEDIA articles! In mathematics and string theory, a conifold is a generalization of a manifold. Unlike manifolds, conifolds can contain conical singularities i.e. points whose neighbourhoods look like cones over a certain base. In physics, in particular in flux compactifications of string theory, the base is usually a five-dimensional real manifold, since the typically considered conifolds are complex 3-dimensional (real 6-dimensional) spaces. Conifolds are important objects in string theory: Brian Greene explains the physics of conifolds in Chapter 13 of his book The Elegant Universe - including the fact that the space can tear near the cone, and its topology can change. This possibility was first noticed by Candelas et al. (1988) and employed by Green & Hubsch (1988) to prove that conifolds provide a connection between all (then) known Calabi-Yau compactifications in string theory; this supports a conjecture by Reid (1987) whereby conifolds connect all possible Calabi-Yau complex 3-dimensional spaces.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.