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Space-time adaptive wavelet methods for parabolic evolution problems
Authors:
Christoph Schwab and Rob Stevenson
Journal:
Math. Comp. 78 (2009), 1293-1318
MSC (2000):
Primary 35K10, 41A25, 46B28, 65N99, 65T60
Posted:
November 25, 2008
MathSciNet review:
2501051
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Abstract: With respect to space-time tensor-product wavelet bases, parabolic initial boundary value problems are equivalently formulated as bi-infinite matrix problems. Adaptive wavelet methods are shown to yield sequences of approximate solutions which converge at the optimal rate. In case the spatial domain is of product type, the use of spatial tensor product wavelet bases is proved to overcome the so-called curse of dimensionality, i.e., the reduction of the convergence rate with increasing spatial dimension.
- [AKV06]
Jahrul
M. Alam, Nicholas
K.-R. Kevlahan, and Oleg
V. Vasilyev, Simultaneous space-time adaptive wavelet solution of
nonlinear parabolic differential equations, J. Comput. Phys.
214 (2006), no. 2, 829–857. MR 2216616
(2006k:65242), http://dx.doi.org/10.1016/j.jcp.2005.10.009
- [Bab71]
Ivo
Babuška, Error-bounds for finite element method, Numer.
Math. 16 (1970/1971), 322–333. MR 0288971
(44 #6166)
- [BMP92]
E.
Bacry, S.
Mallat, and G.
Papanicolaou, A wavelet based space-time adaptive numerical method
for partial differential equations, RAIRO Modél. Math. Anal.
Numér. 26 (1992), no. 7, 793–834
(English, with English and French summaries). MR 1199314
(94f:65122)
- [Bar05]
A. Barinka.
Fast Evaluation Tools for Adaptive Wavelet Schemes. Ph.D. thesis, RTWH Aachen, March 2005.
- [BG04]
Hans-Joachim
Bungartz and Michael
Griebel, Sparse grids, Acta Numer. 13 (2004),
147–269. MR 2249147
(2007e:65102), http://dx.doi.org/10.1017/S0962492904000182
- [Bra01]
Dietrich
Braess, Finite elements, 2nd ed., Cambridge University Press,
Cambridge, 2001. Theory, fast solvers, and applications in solid mechanics;
Translated from the 1992 German edition by Larry L. Schumaker. MR 1827293
(2001k:65002)
- [CDD01]
Albert
Cohen, Wolfgang
Dahmen, and Ronald
DeVore, Adaptive wavelet methods for elliptic
operator equations: convergence rates, Math.
Comp. 70 (2001), no. 233, 27–75. MR 1803124
(2002h:65201), http://dx.doi.org/10.1090/S0025-5718-00-01252-7
- [CDD02]
A.
Cohen, W.
Dahmen, and R.
DeVore, Adaptive wavelet methods. II. Beyond the elliptic
case, Found. Comput. Math. 2 (2002), no. 3,
203–245. MR 1907380
(2003f:65212), http://dx.doi.org/10.1007/s102080010027
- [CF04]
Zhiming
Chen and Jia
Feng, An adaptive finite element algorithm
with reliable and efficient error control for linear parabolic
problems, Math. Comp. 73
(2004), no. 247, 1167–1193
(electronic). MR
2047083 (2005e:65131), http://dx.doi.org/10.1090/S0025-5718-04-01634-5
- [CQ92]
Charles
K. Chui and Ewald
Quak, Wavelets on a bounded interval, Numerical methods in
approximation theory, Vol. 9 (Oberwolfach, 1991), Internat. Ser. Numer.
Math., vol. 105, Birkhäuser, Basel, 1992, pp. 53–75.
MR
1269355 (95b:42027)
- [DFR+07]
Stephan
Dahlke, Thorsten
Raasch, Manuel
Werner, Massimo
Fornasier, and Rob
Stevenson, Adaptive frame methods for elliptic operator equations:
the steepest descent approach, IMA J. Numer. Anal. 27
(2007), no. 4, 717–740. MR 2371829
(2008i:65239), http://dx.doi.org/10.1093/imanum/drl035
- [DGH96]
George
C. Donovan, Jeffrey
S. Geronimo, and Douglas
P. Hardin, Intertwining multiresolution analyses and the
construction of piecewise-polynomial wavelets, SIAM J. Math. Anal.
27 (1996), no. 6, 1791–1815. MR 1416519
(98c:42029), http://dx.doi.org/10.1137/S0036141094276160
- [DGH99]
G.
C. Donovan, J.
S. Geronimo, and D.
P. Hardin, Orthogonal polynomials and the construction of piecewise
polynomial smooth wavelets, SIAM J. Math. Anal. 30
(1999), no. 5, 1029–1056. MR 1709786
(2000j:41012), http://dx.doi.org/10.1137/S0036141096313112
- [DGR+08]
Margarete
O. Domingues, Sônia
M. Gomes, Olivier
Roussel, and Kai
Schneider, An adaptive multiresolution scheme with local time
stepping for evolutionary PDEs, J. Comput. Phys. 227
(2008), no. 8, 3758–3780. MR 2403866
(2009b:65204), http://dx.doi.org/10.1016/j.jcp.2007.11.046
- [DKU99]
Wolfgang
Dahmen, Angela
Kunoth, and Karsten
Urban, Biorthogonal spline wavelets on the interval—stability
and moment conditions, Appl. Comput. Harmon. Anal. 6
(1999), no. 2, 132–196. MR 1676771
(99m:42046), http://dx.doi.org/10.1006/acha.1998.0247
- [DL92]
Robert
Dautray and Jacques-Louis
Lions, Mathematical analysis and numerical methods for science and
technology. Vol. 5, Springer-Verlag, Berlin, 1992. Evolution problems.
I; With the collaboration of Michel Artola, Michel Cessenat and
Hélène Lanchon; Translated from the French by Alan Craig. MR 1156075
(92k:00006)
- [DS98]
Wolfgang
Dahmen and Reinhold
Schneider, Wavelets with complementary boundary
conditions—function spaces on the cube, Results Math.
34 (1998), no. 3-4, 255–293. MR 1652724
(99h:42057)
- [DS99]
Wolfgang
Dahmen and Reinhold
Schneider, Wavelets on manifolds. I. Construction and domain
decomposition, SIAM J. Math. Anal. 31 (1999),
no. 1, 184–230. MR 1742299
(2000k:65242), http://dx.doi.org/10.1137/S0036141098333451
- [DSS08]
T J. Dijkema, Ch. Schwab, and R.P. Stevenson.
An adaptive wavelet method for solving high-dimensional elliptic PDEs. Technical report, January 2008. To appear.
- [EJ91]
Kenneth
Eriksson and Claes
Johnson, Adaptive finite element methods for parabolic problems. I.
A linear model problem, SIAM J. Numer. Anal. 28
(1991), no. 1, 43–77. MR 1083324
(91m:65274), http://dx.doi.org/10.1137/0728003
- [EJ95]
Kenneth
Eriksson and Claes
Johnson, Adaptive finite element methods for parabolic problems.
II. Optimal error estimates in 𝐿_{∞}𝐿₂ and
𝐿_{∞}𝐿_{∞}, SIAM J. Numer. Anal.
32 (1995), no. 3, 706–740. MR 1335652
(96c:65162), http://dx.doi.org/10.1137/0732033
- [EJT85]
Kenneth
Eriksson, Claes
Johnson, and Vidar
Thomée, Time discretization of parabolic problems by the
discontinuous Galerkin method, RAIRO Modél. Math. Anal.
Numér. 19 (1985), no. 4, 611–643
(English, with French summary). MR 826227
(87e:65073)
- [Gan08]
Tsogtgerel
Gantumur, An optimal adaptive wavelet method for nonsymmetric and
indefinite elliptic problems, J. Comput. Appl. Math.
211 (2008), no. 1, 90–102. MR 2386831
(2008m:65317), http://dx.doi.org/10.1016/j.cam.2006.11.013
- [GHS07]
Tsogtgerel
Gantumur, Helmut
Harbrecht, and Rob
Stevenson, An optimal adaptive wavelet method
without coarsening of the iterands, Math.
Comp. 76 (2007), no. 258, 615–629. MR 2291830
(2008i:65310), http://dx.doi.org/10.1090/S0025-5718-06-01917-X
- [GS06a]
Tsogtgerel
Gantumur and Rob
Stevenson, Computation of differential operators
in wavelet coordinates, Math. Comp.
75 (2006), no. 254, 697–709. MR 2196987
(2007h:65162), http://dx.doi.org/10.1090/S0025-5718-05-01807-7
- [GS06b]
T.
Gantumur and R.
P. Stevenson, Computation of singular integral operators in wavelet
coordinates, Computing 76 (2006), no. 1-2,
77–107. MR
2174673 (2006e:65051), http://dx.doi.org/10.1007/s00607-005-0135-1
- [GK00]
M.
Griebel and S.
Knapek, Optimized tensor-product approximation spaces, Constr.
Approx. 16 (2000), no. 4, 525–540. MR 1771694
(2001g:41025), http://dx.doi.org/10.1007/s003650010010
- [GO95]
M.
Griebel and P.
Oswald, Tensor product type subspace splittings and multilevel
iterative methods for anisotropic problems, Adv. Comput. Math.
4 (1995), no. 1-2, 171–206. MR 1338900
(96e:65069), http://dx.doi.org/10.1007/BF02123478
- [GO07]
M.
Griebel and D.
Oeltz, A sparse grid space-time discretization scheme for parabolic
problems, Computing 81 (2007), no. 1,
1–34. MR
2369419 (2009b:65252), http://dx.doi.org/10.1007/s00607-007-0241-3
- [Goo00]
T.N.T. Goodman.
Biorthogonal refinable spline functions. In A. Cohen, C. Rabut, and L.L. Schumaker, editors, Curve and Surface Fitting: Saint-Malo 1999, pages 1-8, Nashville, TN, 2000. Vanderbilt University Press.
- [HS06]
Helmut
Harbrecht and Rob
Stevenson, Wavelets with patchwise cancellation
properties, Math. Comp. 75
(2006), no. 256, 1871–1889
(electronic). MR
2240639 (2007e:42042), http://dx.doi.org/10.1090/S0025-5718-06-01867-9
- [KS06]
Angela
Kunoth and Jan
Sahner, Wavelets on manifolds: an optimized
construction, Math. Comp.
75 (2006), no. 255, 1319–1349 (electronic). MR 2219031
(2007d:42076), http://dx.doi.org/10.1090/S0025-5718-06-01828-X
- [Lan01]
Jens
Lang, Adaptive multilevel solution of nonlinear parabolic PDE
systems, Lecture Notes in Computational Science and Engineering,
vol. 16, Springer-Verlag, Berlin, 2001. Theory, algorithm, and
applications. MR
1801795 (2001i:65106)
- [Met02]
A. Metselaar.
Handling Wavelet Expansions in Numerical Methods. Ph.D. thesis, University of Twente, 2002.
- [MS07]
Siegfried
Müller and Youssef
Stiriba, Fully adaptive multiscale schemes for conservation laws
employing locally varying time stepping, J. Sci. Comput.
30 (2007), no. 3, 493–531. MR 2295481
(2008d:65103), http://dx.doi.org/10.1007/s10915-006-9102-z
- [OS83]
Stanley
Osher and Richard
Sanders, Numerical approximations to nonlinear
conservation laws with locally varying time and space grids, Math. Comp. 41 (1983), no. 164, 321–336. MR 717689
(85i:65121), http://dx.doi.org/10.1090/S0025-5718-1983-0717689-8
- [Pic98]
Marco
Picasso, Adaptive finite elements for a linear parabolic
problem, Comput. Methods Appl. Mech. Engrg. 167
(1998), no. 3-4, 223–237. MR 1673951
(2000b:65188), http://dx.doi.org/10.1016/S0045-7825(98)00121-2
- [Pri06]
M. Primbs.
Stabile biorthogonale Spline-Waveletbasen auf dem Intervall. Ph.D. thesis, Universität Duisburg, 2006.
- [Raa07]
T. Raasch.
Adaptive Wavelet and Frame Schemes for Elliptic and Parabolic Equations. Ph.D. thesis, Philipps-Universität Marburg, 2007.
- [Rei08]
N. Reich.
Wavelet Compression of Anisotropic Integrodifferential Operators on Sparse Grids, Ph.D. Dissertation, ETH Zürich, 2008.
- [SS08]
Christoph
Schwab and Rob
Stevenson, Adaptive wavelet algorithms for
elliptic PDE’s on product domains, Math.
Comp. 77 (2008), no. 261, 71–92 (electronic). MR 2353944
(2009a:41024), http://dx.doi.org/10.1090/S0025-5718-07-02019-4
- [Ste03]
Rob
Stevenson, Adaptive solution of operator equations using wavelet
frames, SIAM J. Numer. Anal. 41 (2003), no. 3,
1074–1100. MR 2005196
(2004e:42062), http://dx.doi.org/10.1137/S0036142902407988
- [Tho06]
Vidar
Thomée, Galerkin finite element methods for parabolic
problems, 2nd ed., Springer Series in Computational Mathematics,
vol. 25, Springer-Verlag, Berlin, 2006. MR 2249024
(2007b:65003)
- [Ver96]
R. Verfürth.
A Review of A Posteriori Error Estimation and Adaptive Mesh-Refinement Techniques. Wiley-Teubner, Chichester, 1996.
- [vPS04]
Tobias
von Petersdorff and Christoph
Schwab, Numerical solution of parabolic equations in high
dimensions, M2AN Math. Model. Numer. Anal. 38 (2004),
no. 1, 93–127. MR 2073932
(2005d:65169), http://dx.doi.org/10.1051/m2an:2004005
- [Wlo82]
Joseph
Wloka, Partielle Differentialgleichungen, B. G. Teubner,
Stuttgart, 1982 (German). Sobolevräume und Randwertaufgaben. [Sobolev
spaces and boundary value problems]; Mathematische Leitfäden.
[Mathematical Textbooks]. MR 652934
(84a:35002)
- [AKV06]
- J. Alam, N. Kevlahan, and O. Vasilyev.
Simultaneous space-time adaptive wavelet solution of nonlinear parabolic differential equations. J. Comput. Phys., 214(2):829-857, 2006. MR 2216616 (2006k:65242)
- [Bab71]
- I. Babuška.
Error-bounds for finite element method. Numer. Math., 16:322-333, 1970/1971. MR 0288971 (44:6166)
- [BMP92]
- E. Bacry, S. Mallat, and G. Papanicolaou.
A wavelet based space-time adaptive numerical method for partial differential equations RAIRO Model. Math. Anal. Numer. 26(7): 793-834, 1992. MR 1199314 (94f:65122)
- [Bar05]
- A. Barinka.
Fast Evaluation Tools for Adaptive Wavelet Schemes. Ph.D. thesis, RTWH Aachen, March 2005.
- [BG04]
- H.J. Bungartz and M. Griebel.
Sparse grids. Acta Numer., 13:147-269, 2004. MR 2249147 (2007e:65102)
- [Bra01]
- D. Braess.
Finite Elements. Cambridge University Press, 2001. Second edition. MR 1827293 (2001k:65002)
- [CDD01]
- A. Cohen, W. Dahmen, and R. DeVore.
Adaptive wavelet methods for elliptic operator equations - Convergence rates. Math. Comp, 70:27-75, 2001. MR 1803124 (2002h:65201)
- [CDD02]
- A. Cohen, W. Dahmen, and R. DeVore.
Adaptive wavelet methods II - Beyond the elliptic case. Found. Comput. Math., 2(3):203-245, 2002. MR 1907380 (2003f:65212)
- [CF04]
- Z. Chen and J. Feng.
An adaptive finite element algorithm with reliable and efficient error control for linear parabolic problems. Math. Comp., 73(247):1167-1193 (electronic), 2004. MR 2047083 (2005e:65131)
- [CQ92]
- Ch. Chui and E. Quak.
Wavelets on a bounded interval. In Numerical methods in approximation theory, Vol. 9 (Oberwolfach, 1991), volume 105 of Internat. Ser. Numer. Math., pages 53-75. Birkhäuser, Basel, 1992. MR 1269355 (95b:42027)
- [DFR+07]
- S. Dahlke, M. Fornasier, T. Raasch, R.P. Stevenson, and M. Werner.
Adaptive frame methods for elliptic operator equations: The steepest descent approach. IMA J. Numer. Math., 27(4):717-740, 2007. MR 2371829 (2008i:65239)
- [DGH96]
- G.C. Donovan, J.S. Geronimo, and D.P. Hardin.
Intertwining multiresolution analyses and the construction of piecewise-polynomial wavelets. SIAM J. Math. Anal., 27(6):1791-1815, 1996. MR 1416519 (98c:42029)
- [DGH99]
- G.C. Donovan, J.S. Geronimo, and D.P. Hardin.
Orthogonal polynomials and the construction of piecewise polynomial smooth wavelets. SIAM J. Math. Anal., 30(5):1029-1056, 1999. MR 1709786 (2000j:41012)
- [DGR+08]
- M.O. Domingues, S.M. Gomes, O. Roussel, and K. Schneider.
An adaptive multiresolution scheme with local time stepping for evolutionary PDEs. J. Comp. Phys. 227(8): 3758-3780, 2008. MR 2403866
- [DKU99]
- W. Dahmen, A. Kunoth, and K. Urban.
Biorthogonal spline-wavelets on the interval-Stability and moment conditions. Appl. Comp. Harm. Anal., 6:132-196, 1999. MR 1676771 (99m:42046)
- [DL92]
- R. Dautray and J.-L. Lions.
Mathematical analysis and numerical methods for science and technology. Vol. 5. Springer-Verlag, Berlin, 1992. Evolution problems I. MR 1156075 (92k:00006)
- [DS98]
- W. Dahmen and R. Schneider.
Wavelets with complementary boundary conditions--function spaces on the cube. Results Math., 34(3-4):255-293, 1998. MR 1652724 (99h:42057)
- [DS99]
- W. Dahmen and R. Schneider.
Wavelets on manifolds I: Construction and domain decomposition. SIAM J. Math. Anal., 31:184-230, 1999. MR 1742299 (2000k:65242)
- [DSS08]
- T J. Dijkema, Ch. Schwab, and R.P. Stevenson.
An adaptive wavelet method for solving high-dimensional elliptic PDEs. Technical report, January 2008. To appear.
- [EJ91]
- K. Eriksson and C. Johnson.
Adaptive finite element methods for parabolic problems. I. A linear model problem. SIAM J. Numer. Anal., 28(1):43-77, 1991. MR 1083324 (91m:65274)
- [EJ95]
- K. Eriksson and C. Johnson.
Adaptive finite element methods for parabolic problems. II. Optimal error estimates in and . SIAM J. Numer. Anal., 32(3):706-740, 1995. MR 1335652 (96c:65162)
- [EJT85]
- K. Eriksson, C. Johnson, and V. Thomée.
Time discretization of parabolic problems by the discontinuous Galerkin method. RAIRO Modél. Math. Anal. Numér., 19(4):611-643, 1985. MR 826227 (87e:65073)
- [Gan08]
- T. Gantumur.
An optimal adaptive wavelet method for nonsymmetric and indefinite elliptic problems. J. Comput. Appl. Math., 211(1), 90-102, 2008. MR 2386831
- [GHS07]
- T. Gantumur, H. Harbrecht, and R.P. Stevenson.
An optimal adaptive wavelet method without coarsening of the iterands. Math. Comp., 77:615-629, 2007. MR 2291830 (2008i:65310)
- [GS06a]
- T. Gantumur and R.P. Stevenson.
Computation of differential operators in wavelet coordinates. Math. Comp., 75:697-709, 2006. MR 2196987 (2007h:65162)
- [GS06b]
- T. Gantumur and R.P. Stevenson.
Computation of singular integral operators in wavelet coordinates. Computing, 76:77-107, 2006. MR 2174673 (2006e:65051)
- [GK00]
- M. Griebel and S. Knapek.
Optimized tensor-product approximation spaces. Constr. Approx., 16(4):525-540, 2000. MR 1771694 (2001g:41025)
- [GO95]
- M. Griebel and P. Oswald.
Tensor product type subspace splittings and multilevel iterative methods for anisotropic problems. Adv. Comput. Math., 4(1-2):171-206, 1995. MR 1338900 (96e:65069)
- [GO07]
- M. Griebel and D. Oeltz.
A Sparse Grid Space-Time Discretization Scheme for Parabolic Problems. Computing, 2007. MR 2369419
- [Goo00]
- T.N.T. Goodman.
Biorthogonal refinable spline functions. In A. Cohen, C. Rabut, and L.L. Schumaker, editors, Curve and Surface Fitting: Saint-Malo 1999, pages 1-8, Nashville, TN, 2000. Vanderbilt University Press.
- [HS06]
- H. Harbrecht and R.P. Stevenson.
Wavelets with patchwise cancellation properties. Math. Comp., 75(256):1871-1889, 2006. MR 2240639 (2007e:42042)
- [KS06]
- A. Kunoth and J. Sahner.
Wavelets on manifolds: An optimized construction. Math. Comp., 75:1319-1349, 2006. MR 2219031 (2007d:42076)
- [Lan01]
- J. Lang.
Adaptive multilevel solution of nonlinear parabolic PDE systems, volume 16 of Lecture Notes in Computational Science and Engineering. Springer-Verlag, Berlin, 2001. Theory, algorithm, and applications. MR 1801795 (2001i:65106)
- [Met02]
- A. Metselaar.
Handling Wavelet Expansions in Numerical Methods. Ph.D. thesis, University of Twente, 2002.
- [MS07]
- S. Müller and Y. Stiriba.
Fully adaptive multiscale schemes for conservation laws employing locally varying time stepping. J. Sci. Comput. 30: 493-531, 2007. MR 2295481 (2008d:65103)
- [OS83]
- S. Osher and R. Sanders.
Numerical approximations to nonlinear conservation laws with locally varying time and space grids. Math. Comp., 41: 321-336, 1983. MR 717689 (85i:65121)
- [Pic98]
- M. Picasso.
Adaptive finite elements for a linear parabolic problem. Comput. Methods Appl. Mech. Engrg., 167(3-4):223-237, 1998. MR 1673951 (2000b:65188)
- [Pri06]
- M. Primbs.
Stabile biorthogonale Spline-Waveletbasen auf dem Intervall. Ph.D. thesis, Universität Duisburg, 2006.
- [Raa07]
- T. Raasch.
Adaptive Wavelet and Frame Schemes for Elliptic and Parabolic Equations. Ph.D. thesis, Philipps-Universität Marburg, 2007.
- [Rei08]
- N. Reich.
Wavelet Compression of Anisotropic Integrodifferential Operators on Sparse Grids, Ph.D. Dissertation, ETH Zürich, 2008.
- [SS08]
- Ch. Schwab and R.P. Stevenson.
Adaptive wavelet algorithms for elliptic PDEs on product domains. Math. Comp., 77:71-92, 2008. MR 2353944
- [Ste03]
- R.P. Stevenson.
Adaptive solution of operator equations using wavelet frames. SIAM J. Numer. Anal., 41(3):1074-1100, 2003. MR 2005196 (2004e:42062)
- [Tho06]
- V. Thomée.
Galerkin finite element methods for parabolic problems, volume 25 of Springer Series in Computational Mathematics. Springer-Verlag, Berlin, second edition, 2006. MR 2249024 (2007b:65003)
- [Ver96]
- R. Verfürth.
A Review of A Posteriori Error Estimation and Adaptive Mesh-Refinement Techniques. Wiley-Teubner, Chichester, 1996.
- [vPS04]
- T. von Petersdorff and Ch. Schwab.
Numerical solution of parabolic equations in high dimensions. M2AN Math. Model. Numer. Anal., 38(1):93-127, 2004. MR 2073932 (2005d:65169)
- [Wlo82]
- J. Wloka.
Partielle Differentialgleichungen. B.G. Teubner, Stuttgart, 1982. Sobolevräume und Randwertaufgaben. MR 652934 (84a:35002)
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Additional Information
Christoph Schwab
Affiliation:
Department of Mathematics, ETH Zürich, ETH Zentrum, HG G58.1, CH 8092 Zürich, Switzerland
Email:
schwab@math.ethz.ch
Rob Stevenson
Affiliation:
Korteweg-de Vries Institute for Mathematics, Plantage Muidergracht 24, 1018 TV Amsterdam, The Netherlands
Email:
R.P.Stevenson.uva.nl
DOI:
http://dx.doi.org/10.1090/S0025-5718-08-02205-9
PII:
S 0025-5718(08)02205-9
Keywords:
Parabolic differential equations,
wavelets,
adaptivity,
optimal computational complexity,
best $N$-term approximation,
matrix compression
Received by editor(s):
January 3, 2008
Received by editor(s) in revised form:
July 23, 2008
Posted:
November 25, 2008
Article copyright:
© Copyright 2008 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.
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