Trees, forests and jungles: A Botanical garden for cluster expansions
Sep, 199436 pages
Published in:
- Lect.Notes Phys. 446 (1995) 7
e-Print:
- hep-th/9409094 [hep-th]
Report number:
- CPTH-A325-0994
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Abstract:
Combinatoric formulas for cluster expansions have been improved many times over the years. Here we develop some new combinatoric proofs and extensions of the tree formulas of Brydges and Kennedy, and test them on a series of pedagogical examples.- expansion: cluster
- field theory: constructive
- mathematical methods
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