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Relativity, Cosmology, and Time

Momentum Space

Curved Momentum Space Space-time Diagram The transformation between functions in the position space x and the momentum space k is effected via the Fourier integral:
(k) = (1/2)½e-ikx(x)dx
where the momentum p = k. This formula can be readily generalized to the case of transformation between space-time and 4-momentum.

Figure 23 Curved Momentum Space
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Figure 24 Space-time Diagram

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