In this paper, we investigate one type of transport equation with general boundary conditions in slab geometry by the methods of modern analysis, such as functional analysis , the theory of operator and the theory of semigroup. We have got a series of new results about the spectrum of the transport operator relating to the transport equations. The main results are showed below:1. We discuss anisotropic, monoenergy, homogeneous transport operator A with general boundary operator in slab geometry. We prove that the operator A generates a C0 semigroup and the second remainder of the C0 semigroup is compact in Lp(1 1 space.2. We discuss anisotropic, continuous energy, homogeneous transport operator A with general boundary operator in slab geometry. We prove that the operator A generates a C0 semigroup and the second remainder of the C0 semigroup is compact in Lp(l 1 space.3. We investigate these two types of operators above and prove that the operators A have only finite, finite algebraic multiplicity, isolated eigenvalues. Also we prove that the existence of the dominant eigenvalue.
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