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Mathematics of Computation

ISSN 1088-6842(online) ISSN 0025-5718(print)



Lattice rules: projection regularity and unique representations

Authors: I. H. Sloan and J. N. Lyness
Journal: Math. Comp. 54 (1990), 649-660
MSC: Primary 65D32
MathSciNet review: 1011443
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Abstract: We introduce a unique characterization for lattice rules which are projection regular. Any such rule, having invariants ${n_1},{n_2}, \ldots ,{n_s}$, may be expressed, uniquely, in the form \[ Qf = \frac {1}{{{n_1}{n_2} \cdots {n_s}}}\sum {\sum \cdots \sum {\bar f} \left ( {\frac {{{j_1}{{\mathbf {z}}_1}}}{{{n_1}}} + \frac {{{j_2}{{\mathbf {z}}_2}}}{{{n_2}}} + \cdots + \frac {{{j_s}{{\mathbf {z}}_s}}}{{{n_s}}}} \right )} ,\] where the matrix $Z = {({{\mathbf {z}}_1},{{\mathbf {z}}_2}, \ldots ,{{\mathbf {z}}_s})^T}$ is upper unit triangular and individual elements satisfy $0 \leq z_r^{(c)} < ({n_r}/{n_c}),r < c$.

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Article copyright: © Copyright 1990 American Mathematical Society