In this paper, we give a unied approach to various forms of high temperature expansions. The variants of expansion include Mayer\'s expansion, cluster expansion and lace expansion. We also give a brief summary of applications of lace expansion to scaling limits of self-avoiding random walks, lattice trees and percolation above their critical dimensions.
"EXPANSION METHODS AND SCALING LIMITS ABOVE CRITICAL DIMENSIONS." Taiwanese J. Math. 3 (4) 425 - 474, 1999. https://doi.org/10.11650/twjm/1500407160