Evolving spheres of shear-free anisotropic fluid
作者： B. V. IVANOV
DOI: 10.1142/S0217751X10050202
关键词: Physics 、 Exact differential equation 、 Linear equation 、 Classical mechanics 、 Linear differential equation 、 Differential equation 、 Anisotropy 、 Riccati equation 、 Characteristic equation 、 SPHERES
摘要: The fluid models mentioned in the title are studied a modified approach, based on two formulas for mass function. All characteristics of expressed through master potential, satisfying an ordinary second order differential equation. Different constraints imposed this core relations, finding new solutions and deriving classical results perfect fluids as particular cases. charged anisotropic solutions, all conformally flat uniform density found. A large class with linear equation among pressures is derived, including case vanishing tangential pressure. mechanism responsible appearance state elucidated.
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