Calculation of Heat-Kernel Coefficients and Usage of Computer Algebra
A. A. Bel'kov, A. V. Lanyov, A. Schaale
Abstract
The calculation of heat-kernel coefficients with the classical DeWitt algorithm has been discussed. We present the explicit form of the coefficients up to h5 in the general case and up to h7min for the minimal parts. The results are compared with the expressions in other papers. A method to optimize the usage of memory for working with large expressions on universal computer algebra systems has been proposed.
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