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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(e) ISSN 0002-9939(p)

     

Singular integrals along $ N$ directions in $ \mathbb{R}^2$

Author(s): Ciprian Demeter
Journal: Proc. Amer. Math. Soc. 138 (2010), 4433-4442.
MSC (2010): Primary 42B20; Secondary 42B25
Posted: June 11, 2010
MathSciNet review: 2680067
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Abstract | References | Similar articles | Additional information

Abstract: We prove optimal bounds in $ L^2(\mathbb{R}^2)$ for the maximal operator obtained by taking a singular integral along $ N$ arbitrary directions in the plane. We also give a new proof for the optimal $ L^2$ bound for the single scale Kakeya maximal function in the plane.


References:

1.
A. Carbery, E. Hernandez, F. Soria, Estimates for the Kakeya maximal operator of radial functions in $ \mathbb{R}^n$, Harmonic Analysis, ICM 1990 Satellite Conference Proceedings, pp. 41-50, Springer-Verlag, Tokyo, 1991. MR 1261427 (94m:42039)

2.
L. Carleson, On convergence and growth of partial sums of Fourier series, Acta Math. 116 (1966), 135-157. MR 0199631 (33:7774)

3.
S. Y. A. Chang, M. Wilson, T. Wolff, Some weighted norm inequalities concerning the Schrödinger operator, Comment. Math. Helv. 60 (1985), 217-246. MR 800004 (87d:42027)

4.
L. Grafakos, P. Honzik, A. Seeger, On maximal functions for Mikhlin-Hörmander multipliers, Adv. Math. 204 (2006), no. 2, 363-378. MR 2249617 (2007d:42015)

5.
G. A. Karagulyan, On unboundedness of maximal operators for directional Hilbert transforms, Proc. Amer. Math. Soc. 135 (2007), no. 10, 3133-3141. MR 2322743 (2008e:42044)

6.
N. H. Katz, Maximal operators over arbitrary sets of directions, Duke Math. J. 97 (1999), no. 1, 67-79. MR 1681088 (2000a:42036)

7.
N. H. Katz, Remarks on maximal operators over arbitrary sets of directions, Bull. London Math. Soc. 31 (1999), 700-710. MR 1711029 (2001g:42041)

8.
M. Lacey and X. Li, Maximal theorems for the directional Hilbert transform on the plane, Trans. Amer. Math. Soc. 358 (2006), no. 9, 4099-4117. MR 2219012 (2006k:42018)

9.
M. Lacey and X. Li, On a conjecture of E. M. Stein on the Hilbert transform on vector fields, Memoirs of the AMS 205 (2010), no. 965.

10.
A. Nagel, E. M. Stein and S. Wainger, Differentiation in lacunary directions, Proc. Nat. Acad. Sci. U.S.A. 75 (1978), 1060-1062. MR 0466470 (57:6349)

11.
E. M. Stein, Harmonic analysis: Real-variable methods, orthogonality, and oscillatory integrals, Princeton University Press, 1993. MR 1232192 (95c:42002)


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Additional Information:

Ciprian Demeter
Affiliation: Department of Mathematics, Indiana University, 831 East 3rd Street, Bloomington, Indiana 47405
Email: demeterc@indiana.edu

DOI: 10.1090/S0002-9939-2010-10442-2
PII: S 0002-9939(2010)10442-2
Keywords: Kakeya maximal function, singular integrals
Received by editor(s): January 12, 2010
Received by editor(s) in revised form: February 12, 2010
Posted: June 11, 2010
Additional Notes: The author is supported by a Sloan Research Fellowship and by NSF Grants DMS-0742740 and 0901208
Communicated by: Michael T. Lacey
Copyright of article: Copyright 2010, American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.




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