coloring;
folding;
random lattice;
2D quantum gravity;
D O I:
10.1016/S0550-3213(98)00037-6
中图分类号:
O412 [相对论、场论];
O572.2 [粒子物理学];
学科分类号:
摘要:
We introduce and solve a two-matrix model for the tri-coloring problem of the vertices of a random triangulation. We present three different solutions: (i) by orthogonal polynomial techniques, (ii) by use of a discrete Hirota bilinear equation, (iii) by direct expansion. The model is found to lie in the universality class of pure two-dimensional quantum gravity, despite the non-polynomiality of its potential. (C) 1998 Elsevier Science B.V.
机构:
Tel Aviv Univ, Sackler Sch Math Sci, IL-6997801 Tel Aviv, Israel
Tel Aviv Univ, Blavatnik Sch Comp Sci, IL-6997801 Tel Aviv, Israel
Harvard Univ, CMSA, Cambridge, MA 02138 USATel Aviv Univ, Sackler Sch Math Sci, IL-6997801 Tel Aviv, Israel
Alon, Noga
Krivelevich, Michael
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机构:
Tel Aviv Univ, Sackler Sch Math Sci, IL-6997801 Tel Aviv, IsraelTel Aviv Univ, Sackler Sch Math Sci, IL-6997801 Tel Aviv, Israel
机构:
St Petersburg State Univ, Fac Math & Mech, St Petersburg 199034, RussiaSt Petersburg State Univ, Fac Math & Mech, St Petersburg 199034, Russia
Cherkashin, Danila D.
Kozik, Jakub
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机构:
Jagiellonian Univ, Fac Math & Comp Sci, Theoret Comp Sci Dept, Krakow, PolandSt Petersburg State Univ, Fac Math & Mech, St Petersburg 199034, Russia
机构:
Nokia Bell Labs, Math Syst, 600 Mt Ave, Murray Hill, NJ 07974 USA
Eindhoven Univ Technol, Dept Math & Comp Sci, POB 513, NL-5600 MB Eindhoven, NetherlandsNokia Bell Labs, Math Syst, 600 Mt Ave, Murray Hill, NJ 07974 USA
Borst, Sem
Bradonjic, Milan
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h-index: 0
机构:
Nokia Bell Labs, Math Syst, 600 Mt Ave, Murray Hill, NJ 07974 USANokia Bell Labs, Math Syst, 600 Mt Ave, Murray Hill, NJ 07974 USA