Article
Keywords:
singular integral; nonisotropic generalized BMO
Summary:
We extend a result of Coifman and Dahlberg [{\it Singular integral characterizations of nonisotropic $H^p$ spaces and the F. and M. Riesz theorem\/}, Proc. Sympos. Pure Math., Vol. 35, pp.\,231--234; Amer. Math. Soc., Providence, 1979] on the characterization of $H^p$ spaces by singular integrals of $\Bbb R^n$ with a nonisotropic metric. Then we apply it to produce singular integral versions of generalized BMO spaces. More precisely, if $T_\lambda$ is the family of dilations in $\Bbb R^n$ induced by a matrix with a nonnegative eigenvalue, then there exist $2n$ singular integral operators homogeneous with respect to the dilations $T_\lambda$ that characterize BMO$_\varphi$ under a natural condition on $\varphi$.
References:
[CD] Coifman R., Dahlberg B.:
Singular integral characterizations of nonisotropic $H^p$ spaces and the F. and M. Riesz theorem. Proc. Sympos. Pure Math., Vol. 35, pp.231-234; Amer. Math. Soc., Providence, 1979.
MR 0545260
[CW] Coifman R., Weiss G.:
Analyse harmonique non-conmutative sur certain espaces homogenes. Lecture Notes in Mathematics 242, Springer, Berlin-New York, 1971.
MR 0499948
[C] Crescimbeni R.:
Singular integral characterization of functions with conditions on the mean oscillation on spaces of homogeneous type. Rev. Un. Mat. Argentina 39 153-171 (1995).
MR 1376792 |
Zbl 0892.42007
[FS] Fefferman C., Stein E.:
$H^p$ spaces of several variables. Acta Math. 129 137-193 (1972).
MR 0447953
[G] de Guzmán M.:
Real Variable Methods in Fourier Analysis. Mathematics Studies 46, North Holland, Amsterdam, 1981.
MR 0596037
[KR] Krasnosel'skii M., Rutickii J.:
Convex Functions and Orlicz Spaces. Noordhoff, Groningen, 1961.
MR 0126722
[MS1] Macías R., Segovia C.:
Lipschitz functions on spaces of homogeneous type. Adv. in Math. 33 257-270 (1979).
MR 0546295
[MS2] Macías R., Segovia C.:
A decomposition into atoms of distributions on spaces of homogeneous type. Adv. in Math. 33 271-309 (1979).
MR 0546296
[V] Viviani B.:
An atomic decomposition of the predual of ${BMO} (\rho)$. Rev. Mat. Iberoamericana 3 3-4 401-425 (1987).
MR 0996824 |
Zbl 0665.46022