Abstract:
We present a diagram technique used to calculate the Seeley–DeWitt coefficients for a covariant Laplace operator. We use the combinatorial properties of the coefficients to construct a matrix formalism and derive a formula for an arbitrary coefficient.
Citation:
A. V. Ivanov, “Diagram technique for the heat kernel of the covariant Laplace operator”, TMF, 198:1 (2019), 113–132; Theoret. and Math. Phys., 198:1 (2019), 100–117