Two-dimensional Conformal Models of Space-time and Their Compactification
نویسنده
چکیده
We study geometry of two-dimensional models of conformal spacetime based on the group of Möbius transformation. The natural geometric invariants, called cycles, are used to linearise Möbius action. Conformal completion of the space-time is achieved through an addition of a zero-radius cycle at infinity. We pay an attention to the natural condition of non-reversibility of time arrow in order to get a correct compactification in the hyperbolic case.
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