Abstract:
The boundary behavior of convolutions with Poisson kernel and with square root of the Poisson kernel is essentially different. The former has only a nontangential limit. The latter involves convergence over domains admitting the logarithmic order of tangency with the boundary (P. Sjögren, J.-O. Rönning). This result was generalized by the authors to spaces of homogeneous type. Here we prove the boundedness in Lp, p>1, of the corresponding maximal operator. Only a weak-type inequality was known before.
Citation:
V. G. Krotov, I. N. Katkovskaya, “Strong-Type Inequality for Convolution with Square Root of the Poisson Kernel”, Mat. Zametki, 75:4 (2004), 580–591; Math. Notes, 75:4 (2004), 542–552
This publication is cited in the following 4 articles:
Safaryan M.H., “On Generalizations of Fatou'S Theorem in l-P For Convolution Integrals With General Kernels”, J. Geom. Anal., 31:4 (2021), 3280–3299
G. A. Karagulyan, I. N. Katkovskaya, V. G. Krotov, “The Fatou Property for General Approximate Identities on Metric Measure Spaces”, Math. Notes, 110:2 (2021), 196–209
Karagulyan G.A., Safaryan M.H., “on a Theorem of Littlewood”, Hokkaido Math. J., 46:1 (2017), 87–106
Karagulyan G.A., Safaryan M.H., “On Generalizations of Fatou'S Theorem For the Integrals With General Kernels”, J. Geom. Anal., 25:3 (2015), 1459–1475