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On the positivstellensatz in Weyl's algebra
Author:
Joules Nahas
Journal:
Proc. Amer. Math. Soc. 138 (2010), 987-995
MSC (2010):
Primary 47L80
Posted:
October 21, 2009
MathSciNet review:
2566565
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Abstract: We use harmonic analysis tools on the Heisenberg group to prove decay and regularity properties for a certain class of partial differential equations. These properties allow us to relax a technical condition for a sum of squares decomposition for the Weyl algebra.
- 1.
R. Bochnak, M. Coste, M-F. Roy,
Géométrie algébrique réelle, Springer-Verlag, Berlin, 1980.
- 2.
Lawrence
C. Evans, Partial differential equations, Graduate Studies in
Mathematics, vol. 19, American Mathematical Society, Providence, RI,
1998. MR
1625845 (99e:35001)
- 3.
Gerald
B. Folland, Harmonic analysis in phase space, Annals of
Mathematics Studies, vol. 122, Princeton University Press, Princeton,
NJ, 1989. MR
983366 (92k:22017)
- 4.
Roger
Howe, Quantum mechanics and partial differential equations, J.
Funct. Anal. 38 (1980), no. 2, 188–254. MR 587908
(83b:35166), http://dx.doi.org/10.1016/0022-1236(80)90064-6
- 5.
Tosio
Kato, On the commutation relation
𝐴𝐵-𝐵𝐴=𝑐, Arch. Rational Mech.
Anal. 10 (1962), 273–275. MR 0151867
(27 #1850)
- 6.
J.
William Helton and Mihai
Putinar, Positive polynomials in scalar and matrix variables, the
spectral theorem, and optimization, Operator theory, structured
matrices, and dilations, Theta Ser. Adv. Math., vol. 7, Theta,
Bucharest, 2007, pp. 229–306. MR 2389626
(2009i:47001)
- 7.
R. Richtmeyer,
Principles of Advanced Mathematical Physics, Vol. 1, Springer, New York, 1978.
- 8.
Konrad
Schmüdgen, A strict Positivstellensatz for the Weyl
algebra, Math. Ann. 331 (2005), no. 4,
779–794. MR 2148796
(2007h:47127), http://dx.doi.org/10.1007/s00208-004-0604-4
- 9.
Konrad
Schmüdgen, A strict positivstellensatz for enveloping
algebras, Math. Z. 254 (2006), no. 3,
641–653. MR 2244371
(2007m:22007), http://dx.doi.org/10.1007/s00209-006-0965-3
- 1.
- R. Bochnak, M. Coste, M-F. Roy,
Géométrie algébrique réelle, Springer-Verlag, Berlin, 1980.
- 2.
- L.C. Evans,
Partial Differential Equations, American Mathematical Society, Providence, RI, 2000. MR 1625845 (99e:35001)
- 3.
- G. B. Folland,
Harmonic Analysis in Phase Space, Princeton University Press, Princeton, NJ, 1989. MR 983366 (92k:22017)
- 4.
- R. Howe,
Quantum Mechanics and Partial Differential Equations, J. Funct. Anal. 38 (1980), 188-254. MR 587908 (83b:35166)
- 5.
- T. Kato,
On the Commutation Relation AB-BA=c, Arch. Rat. Mech. Anal. 10 (1962), 273-275. MR 0151867 (27:1850)
- 6.
- M. Putinar, J. W. Helton,
Positive Polynomials in Scalar and Matrix Variables, the Spectral Theorem, and Optimization, in Operator Theory, Structured Matrices, and Dilations, Theta, Bucharest, June 1988, pp. 229-306. MR 2389626
- 7.
- R. Richtmeyer,
Principles of Advanced Mathematical Physics, Vol. 1, Springer, New York, 1978.
- 8.
- K. Schmüdgen,
A Strict Positivstellensatz for the Weyl Algebra, Math. Ann. 331 (2005), 779-794. MR 2148796 (2007h:47127)
- 9.
- K. Schmüdgen,
A Strict Positivstellensatz for Enveloping Algebras, Math. Z. 254 (2006), 641-653. MR 2244371 (2007m:22007)
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Additional Information
Joules Nahas
Affiliation:
Department of Mathematics, University of California Santa Barbara, South Hall 6607, Santa Barbara, California 93106
Email:
nahas@math.uesb.edu
DOI:
http://dx.doi.org/10.1090/S0002-9939-09-10114-4
PII:
S 0002-9939(09)10114-4
Received by editor(s):
October 10, 2008
Received by editor(s) in revised form:
November 9, 2008, and July 8, 2009
Posted:
October 21, 2009
Communicated by:
Nigel J. Kalton
Article copyright:
© Copyright 2009 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.
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