Geodesic
Evaluation of some matrix-valued functional integrals
Trudy Instituta matematiki, Tome 19 (2011) no. 1, pp. 92-103.

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The new method of evaluation of matrix-valued functional integrals is proposed. This method is based on representation of functional integral by means of sum over configurations. These configurations are defined as set of numbers $(x_1,\dots,x_N)$, $x_i=\pm1$, $i=1,\dots,N$. 
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V. B. Malyutin. Evaluation of some matrix-valued functional integrals. Trudy Instituta matematiki, Tome 19 (2011) no. 1, pp. 92-103. http://geodesic.mathdoc.fr/item/TIMB_2011_19_1_a9/

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