Postradiation sarcoma of bone
摘要:
Bogolyubov's chain of equations for classical one-time correlation functions in a gas with binary collisions is used to obtain an equation for the long-wavelength (ka << 1) part of the binary correlation function g(2)(p(1)r(1), p(2)r(2), t) (a is the radius of the interaction between the particles and k is the wave vector in the Fourier decomposition of g(2) as a function of r(1)-r(2)). This equation is inhomogeneous and the right-hand side (source) is proportional to delta(r(1)-r(2)) and is nonvanishing in a nonequilibrium state (in the absence of detailed balance in the gas). In contrast to the well-known Bogolyubov function g(2), which describes the correlation at distances vertical bar r(1)-r(2)vertical bar < a, the correlation function that is obtained describes the correlation at distances of the order of the mean free path and greater. It does not follow adiabatically the change in time (and in space) of the first distribution function.
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DOI:
10.1002/1097-0142(196505)18:53.0.CO;2-6
被引量:
年份:
1965
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