## Contents of Volume 81, Number 279

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- Finite element methods for the displacement obstacle problem of clamped plates
- Susanne C. Brenner, Li-yeng Sung and Yi Zhang PDF
- Math. Comp.
**81**(2012), 1247-1262

- Convergence analysis of variational and non-variational multigrid algorithms for the Laplace-Beltrami operator
- Andrea Bonito and Joseph E. Pasciak PDF
- Math. Comp.
**81**(2012), 1263-1288

- Polynomial extension operators. Part III
- L. Demkowicz, J. Gopalakrishnan and J. Schöberl PDF
- Math. Comp.
**81**(2012), 1289-1326

- Conditions for superconvergence of HDG methods for second-order elliptic problems
- Bernardo Cockburn, Weifeng Qiu and Ke Shi PDF
- Math. Comp.
**81**(2012), 1327-1353

- An analysis of HDG methods for the vorticity-velocity-pressure formulation of the Stokes problem in three dimensions
- Bernardo Cockburn and Jintao Cui PDF
- Math. Comp.
**81**(2012), 1355-1368

- Numerical identification of a Robin coefficient in parabolic problems
- Bangti Jin and Xiliang Lu PDF
- Math. Comp.
**81**(2012), 1369-1398

- Multilevel preconditioning for the finite volume method
- Yonghai Li, Shi Shu, Yuesheng Xu and Qingsong Zou PDF
- Math. Comp.
**81**(2012), 1399-1428

- Convergence of a finite volume scheme for the convection-diffusion equation with $\mathrm {L}^1$ data
- T. Gallouët, A. Larcher and J. C. Latché PDF
- Math. Comp.
**81**(2012), 1429-1454

- Fast wave computation via Fourier integral operators
- Laurent Demanet and Lexing Ying PDF
- Math. Comp.
**81**(2012), 1455-1486

- Perturbation analysis of the QR factor R in the context of LLL lattice basis reduction
- Xiao-Wen Chang, Damien Stehlé and Gilles Villard PDF
- Math. Comp.
**81**(2012), 1487-1511

- The cubic spherical optimization problems
- Xinzhen Zhang, Liqun Qi and Yinyu Ye PDF
- Math. Comp.
**81**(2012), 1513-1525

- Multistep $\varepsilon$–algorithm, Shanks’ transformation, and the Lotka–Volterra system by Hirota’s method
- Claude Brezinski, Yi He, Xing-Biao Hu, Michela Redivo-Zaglia and Jian-Qing Sun PDF
- Math. Comp.
**81**(2012), 1527-1549

- Function spaces for conditionally positive definite operator-valued kernels
- Georg Berschneider, Wolfgang zu Castell and Stefan J. Schrödl PDF
- Math. Comp.
**81**(2012), 1551-1569

- The distance to an irreducible polynomial, II
- Michael Filaseta and Michael J. Mossinghoff PDF
- Math. Comp.
**81**(2012), 1571-1585

- Computing the torsion points of a variety defined by lacunary polynomials
- Louis Leroux PDF
- Math. Comp.
**81**(2012), 1587-1607

- The Frobenius problem for numerical semigroups with embedding dimension equal to three
- Aureliano M. Robles-Pérez and José Carlos Rosales PDF
- Math. Comp.
**81**(2012), 1609-1617

- A normal form for definite quadratic forms over $\mathbb {F}_q[t]$
- Markus Kirschmer PDF
- Math. Comp.
**81**(2012), 1619-1634

- Local solubility and height bounds for coverings of elliptic curves
- T. A. Fisher and G. F. Sills PDF
- Math. Comp.
**81**(2012), 1635-1662

- Constructing irreducible polynomials over finite fields
- San Ling, Enver Ozdemir and Chaoping Xing PDF
- Math. Comp.
**81**(2012), 1663-1668

- Gram lines and the average of the real part of the Riemann zeta function
- Kevin A. Broughan and A. Ross Barnett PDF
- Math. Comp.
**81**(2012), 1669-1679

- Numerical evidence for the equivariant Birch and Swinnerton-Dyer conjecture (Part II)
- Werner Bley PDF
- Math. Comp.
**81**(2012), 1681-1705

- Asymptotic estimates for Apostol-Bernoulli and Apostol-Euler polynomials
- Luis M. Navas, Francisco J. Ruiz and Juan L. Varona PDF
- Math. Comp.
**81**(2012), 1707-1722

- The zeta function on the critical line: Numerical evidence for moments and random matrix theory models
- Ghaith A. Hiary and Andrew M. Odlyzko PDF
- Math. Comp.
**81**(2012), 1723-1752

- Sieve methods for odd perfect numbers
- S. Adam Fletcher, Pace P. Nielsen and Pascal Ochem PDF
- Math. Comp.
**81**(2012), 1753-1776

- The least inert prime in a real quadratic field
- Enrique Treviño PDF
- Math. Comp.
**81**(2012), 1777-1797

- Reduction of bivariate polynomials from convex-dense to dense, with application to factorizations
- Jérémy Berthomieu and Grégoire Lecerf PDF
- Math. Comp.
**81**(2012), 1799-1821

- Arithmetic $(1;e)$-curves and Belyĭ maps
- Jeroen Sijsling PDF
- Math. Comp.
**81**(2012), 1823-1855

- Combinatorics of Cremona monomial maps
- Aron Simis and Rafael H. Villarreal PDF
- Math. Comp.
**81**(2012), 1857-1867

- Odd perfect numbers are greater than $10^{1500}$
- Pascal Ochem and Michaël Rao PDF
- Math. Comp.
**81**(2012), 1869-1877