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Title: THE critical exponent of the tree lattice generating function in the eden model.
Authors: Zobov, V.
Abstract: We consider the increase in the number of trees as their size increases in the Eden growth model on simple and face-centered hypercubic lattices in different space dimensions. We propose a first-order partial differential equation for the tree generating function, which allows relating the exponent at the critical point of this function to the perimeter of the most probable tree. We estimate tree perimeters for the lattices considered. The theoretical values of the exponents agree well with the values previously obtained by computer modeling. We thus explain the closeness of the dimension dependences of the exponents of the simple and face-centered lattices and their difference from the results in the Bethe lattice approximation.
Subjects: EXPONENTS; TREE graphs; LATTICE theory; GENERATING functions; MATHEMATICAL models; PERIMETERS (Geometry); PARTIAL differential equations
Publication: Theoretical & Mathematical Physics, 2010, Vol 165, Issue 2, p1443
ISSN: 0040-5779
Publication type: Academic Journal
DOI: 10.1007/s11232-010-0120-5

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THE critical exponent of the tree lattice generating function in the eden model.