Geodesic
Computation of multiple functional integrals in multidimensional problems of quantum physics
Matematičeskoe modelirovanie, Tome 2 (1990) no. 10, pp. 110-119 Cet article a éte moissonné depuis la source Math-Net.Ru

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The employment of the numerical functional integration for the description of multidimensional systems in quantum and statistical physics is considered. For the multiple functional integrals with respect to Gaussian measures in the full separable metric spaces the new approximation formulas exact on a class of polynomial functional of a given summary degree are constructed. The use of the formulas is demonstrated on example of computation of the Green function and the ground state energy in multidimensional Calogero model. The comparison of numerical results with the data obtained by the other authors which used the Monte Carlo method combined with interative algorithms indicates that our formulas provide the higher efficiency of computations. 
@article{MM_1990_2_10_a11,
     author = {E. P. Zhidkov and Yu. Yu. Lobanov and R. R. Shahbagian},
     title = {Computation of multiple functional integrals in multidimensional problems of quantum physics},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {110--119},
     year = {1990},
     volume = {2},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1990_2_10_a11/}
}
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E. P. Zhidkov; Yu. Yu. Lobanov; R. R. Shahbagian. Computation of multiple functional integrals in multidimensional problems of quantum physics. Matematičeskoe modelirovanie, Tome 2 (1990) no. 10, pp. 110-119. http://geodesic.mathdoc.fr/item/MM_1990_2_10_a11/