P. Poullet and A. Boag, Incremental unknowns preconditioning for solving the Helmholtz equation, Numerical Methods for Partial Differential Equations, vol.7, issue.6, pp.23-29, 2007.
DOI : 10.1002/num.20226
URL : https://hal.archives-ouvertes.fr/hal-00530821

P. Poullet and A. Boag, Equation-based interpolation and incremental unknowns for solving the Helmholtz equation, Applied Numerical Mathematics, vol.60, issue.11, pp.1148-1156, 2010.
DOI : 10.1016/j.apnum.2009.12.006
URL : https://hal.archives-ouvertes.fr/hal-00763930

F. Ihlenburg, Finite element analysis of acoustic scattering, Applied Mathematical Sciences, vol.132, 1998.
DOI : 10.1007/b98828

Y. A. Erlangga, Advances in Iterative Methods and Preconditioners for the Helmholtz Equation, Archives of Computational Methods in Engineering, vol.15, issue.2, pp.37-66, 2008.
DOI : 10.1007/s11831-007-9013-7

Y. A. Erlangga, C. Vuik, and C. W. Oosterlee, On a class of preconditioners for solving the??Helmholtz equation, Applied Numerical Mathematics, vol.50, issue.3-4, pp.3-4, 2004.
DOI : 10.1016/j.apnum.2004.01.009

Y. A. Erlangga, C. W. Oosterlee, and C. Vuik, A Novel Multigrid Based Preconditioner For Heterogeneous Helmholtz Problems, SIAM Journal on Scientific Computing, vol.27, issue.4, pp.1471-1492, 2006.
DOI : 10.1137/040615195

Y. A. Erlangga, C. W. Oosterlee, and C. Vuik, Comparison of multigrid and incomplete LU shifted-Laplace preconditioners for the inhomogeneous Helmholtz equation, Applied Numerical Mathematics, vol.56, issue.5, pp.56-648, 2006.
DOI : 10.1016/j.apnum.2005.04.039

H. C. Elman, O. G. Ernst, and D. P. Leary, A Multigrid Method Enhanced by Krylov Subspace Iteration for Discrete Helmholtz Equations, SIAM Journal on Scientific Computing, vol.23, issue.4, pp.1291-1315, 2001.
DOI : 10.1137/S1064827501357190

I. Livshits, An algebraic multigrid wave???ray algorithm to solve eigenvalue problems for the helmholtz operator, Numerical Linear Algebra with Applications, vol.11, issue.23, pp.229-239, 2004.
DOI : 10.1002/nla.379

I. Livshits and A. Brandt, Accuracy Properties of the Wave???Ray Multigrid Algorithm for Helmholtz Equations, SIAM Journal on Scientific Computing, vol.28, issue.4, pp.1228-1251, 2006.
DOI : 10.1137/040620461

A. Bayliss, C. I. Goldstein, and E. Turkel, The numerical solution of the Helmholtz Equation for wave propagation problems in underwater acoustics, Computers & Mathematics with Applications, vol.11, issue.7-8, pp.655-665, 1985.
DOI : 10.1016/0898-1221(85)90162-2

R. Temam, Inertial Manifolds and Multigrid Methods, SIAM Journal on Mathematical Analysis, vol.21, issue.1, pp.154-178, 1990.
DOI : 10.1137/0521009

H. Yserentant, On the multi-level splitting of finite element spaces, Numerische Mathematik, vol.65, issue.4, pp.379-412, 1986.
DOI : 10.1007/BF01389538

M. Chen and R. Temam, Incremental unknowns for solving partial differential equations, Numerische Mathematik, vol.21, issue.No. 1, pp.255-271, 1991.
DOI : 10.1007/BF01385779

M. Chen and R. Temam, Incremental Unknowns in Finite Differences: Condition Number of the Matrix, SIAM Journal on Matrix Analysis and Applications, vol.14, issue.2, pp.432-455, 1993.
DOI : 10.1137/0614031

S. Garcia, The matricial framework for the incremental unknowns method, Numerical Functional Analysis and Optimization, vol.14, issue.1-2, pp.25-44, 1993.
DOI : 10.1137/0521009

M. Chen, A. Miranville, and R. Temam, Incremental unknowns in finite differences in three space dimensions, Comput. Appl. Math, vol.14, issue.3, pp.219-252, 1995.

S. Garcia, Incremental unknowns and graph techniques in three space dimensions, Applied Numerical Mathematics, vol.44, issue.3, pp.329-365, 2003.
DOI : 10.1016/S0168-9274(02)00144-7

L. Song and Y. Wu, Incremental unknowns in three-dimensional stationary problem, Numerical Algorithms, vol.25, issue.5, pp.153-171, 2007.
DOI : 10.1007/s11075-007-9133-z

J. Chehab, Incremental unknowns method and compact schemes, ESAIM: Mathematical Modelling and Numerical Analysis, vol.32, issue.1, pp.51-83, 1998.
DOI : 10.1051/m2an/1998320100511

J. Chehab and A. Miranville, Incremental unknowns on nonuniform meshes, ESAIM: Mathematical Modelling and Numerical Analysis, vol.32, issue.5, pp.539-577, 1998.
DOI : 10.1051/m2an/1998320505391

P. Poullet, Staggered incremental unknowns for solving Stokes and generalized Stokes problems, Applied Numerical Mathematics, vol.35, issue.1, pp.23-41, 2000.
DOI : 10.1016/S0168-9274(99)00044-6
URL : https://hal.archives-ouvertes.fr/hal-00770268

H. Yserentant, On the Multi-Level Splitting of Finite Element Spaces for Indefinite Elliptic Boundary Value Problems, SIAM Journal on Numerical Analysis, vol.23, issue.3, pp.581-595, 1986.
DOI : 10.1137/0723037

S. Andouze, O. Goubet, and P. Poullet, A multilevel method for solving the Helmholtz equation : the analysis of the one-dimensional case, To Appear in Int. J. Numer. Anal. Model
URL : https://hal.archives-ouvertes.fr/hal-00601461

E. Heikkola, T. Rossi, and J. Toivanen, A Parallel Fictitious Domain Method for the Three-Dimensional Helmholtz Equation, SIAM Journal on Scientific Computing, vol.24, issue.5, pp.24-29, 2003.
DOI : 10.1137/S1064827500370305

G. Mur, Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electromagnetic-Field Equations, IEEE Transactions on Electromagnetic Compatibility, vol.23, issue.4, pp.377-382, 1981.
DOI : 10.1109/TEMC.1981.303970

A. Bamberger, P. Joly, and J. E. Roberts, Second-Order Absorbing Boundary Conditions for the Wave Equation: A Solution for the Corner Problem, SIAM Journal on Numerical Analysis, vol.27, issue.2, pp.27-29, 1990.
DOI : 10.1137/0727021
URL : https://hal.archives-ouvertes.fr/inria-00075909

Y. Saad, Iterative Methods for Sparse Linear Systems, 1996.
DOI : 10.1137/1.9780898718003

A. Bayliss, C. I. Goldstein, and E. Turkel, An iterative method for the Helmholtz equation, Journal of Computational Physics, vol.49, issue.3, pp.443-457, 1983.
DOI : 10.1016/0021-9991(83)90139-0