129 research outputs found

    Alignment of Rods and Partition of Integers

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    We study dynamical ordering of rods. In this process, rod alignment via pairwise interactions competes with diffusive wiggling. Under strong diffusion, the system is disordered, but at weak diffusion, the system is ordered. We present an exact steady-state solution for the nonlinear and nonlocal kinetic theory of this process. We find the Fourier transform as a function of the order parameter, and show that Fourier modes decay exponentially with the wave number. We also obtain the order parameter in terms of the diffusion constant. This solution is obtained using iterated partitions of the integer numbers.Comment: 6 pages, 4 figure

    Statistics of nested spiral self-avoiding loops: exact results on the square and triangular lattices

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    The statistics of nested spiral self-avoiding loops, which is closely related to the partition of integers into decreasing parts, is studied on the square and triangular lattices.Comment: Old paper, for archiving. 7 pages, 2 figures, epsf, IOP macr

    On the maximal weight of (p,q)(p,q)-ary chain partitions with bounded parts

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    A (p,q)(p,q)-ary chain is a special type of chain partition of integers with parts of the form paqbp^aq^b for some fixed integers pp and qq. In this note, we are interested in the maximal weight of such partitions when their parts are distinct and cannot exceed a given bound mm. Characterizing the cases where the greedy choice fails, we prove that this maximal weight is, as a function of mm, asymptotically independent of max(p,q)\max(p,q), and we provide an efficient algorithm to compute it.Comment: 17 page

    Two wolstenholme's type theorems on q-binomial coefficients

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    In this note we prove two 'Wolstenholme-type' Theorems on q binomial coefficients, with the help of a result on partition of integers modulo prime

    THE SEXTUPLE COMPLETE PARTITIONS OF INTEGERS

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    This paper presents the concepts of sextuple (6 – tuple) complete partitions of integers and an attempt has been given for the theorem based on the last part of sextuple complete partitions of integers
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