1. This transformation between the two 10-dimensional theories is known as T-duality. 2. In extra dimensional theories , there are analogous particles called LKP's or Lightest Kaluza-Klein Particle. 3. He rejected Wundt's three-dimensional theory and Motora's one-dimensional theory. 4. Some of these difficulties could be avoided by moving to a 10-dimensional theory involving superstrings. 5. It seems that a few higher-dimensional theories exist, but they are not very well understood. 6. He rejected Wundt's three-dimensional theory and Motora's one-dimensional theory . 7. The idea of the AGT correspondence has also been extended to describe relationships between three-dimensional theories . 8. However, by moving to 10 dimensions one loses the sense of uniqueness of the 11-dimensional theory . 9. These are the stable particles of extra-dimensional theories . 10. The five-dimensional theory was developed in three steps.
