Sharp Weak Type Inequalities for the Dyadic Maximal Operator
نویسندگان
چکیده
منابع مشابه
Sharp Weak - Type ( 1 , 1 ) Martingale Inequalities
Let X be a Hilbert-space valued martingale and Y a real-valued supermartingale which are orthogonal and with Y diierentially subordinate to X. Then where the constant (2) is Catalan's constant whose approximate value is 0:915965594. The constant K is B. Davis' constant in the Kolmogorov's weak-type inequality for conjugate harmonic functions in the unit disk. The inequality is sharp.
متن کاملTwo-Weight Orlicz Type Integral Inequalities for the Maximal Operator
p A v = u , (1) holds for t = ) t ( = ) t ( , but not if 1 = p . Also for each < p 1 there exists a pair p A ) v , u ( so that (1) fails in the special case t = ) t ( = ) t ( [3, p. 395]. In these exceptional cases we have a weak type inequality. An excellent reference is the book by J.Garcia-Cuerva and J.L.Rubio de Francia [3]. We refer the reader interested in the current stat...
متن کاملWeighted Weak Type Inequalities for the Hardy Operator When
The paper studies the weighted weak type inequalities for the Hardy operator as an operator from weighted L to weighted weak L in the case p = 1. It considers two different versions of the Hardy operator and characterizes their weighted weak type inequalities when p = 1. It proves that for the classical Hardy operator, the weak type inequality is generally weaker when q < p = 1. The best consta...
متن کاملA Weak L Estimate for a Maximal Dyadic Sum Operator on R
Lacey and Thiele have recently obtained a new proof of Carleson’s theorem on almost everywhere convergence of Fourier series. This paper is a generalization of their techniques (known broadly as time-frequency analysis) to higher dimensions. In particular, a weaktype (2,2) estimate is derived for a maximal dyadic sum operator on Rn, n > 1. As an application one obtains a new proof of Sjölin’s t...
متن کاملA Sharp Maximal Function Estimate for Vector-Valued Multilinear Singular Integral Operator
We establish a sharp maximal function estimate for some vector-valued multilinear singular integral operators. As an application, we obtain the $(L^p, L^q)$-norm inequality for vector-valued multilinear operators.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Fourier Analysis and Applications
سال: 2012
ISSN: 1069-5869,1531-5851
DOI: 10.1007/s00041-012-9245-2