“…One can show that an easy modification of ideas used in [3] provides the following result which generalizes that of [3] (for notation see below).…”
Section: ])mentioning
confidence: 87%
“…In our method some ideas from [5][6][7]3] are employed. Let us point out that "the method of differential equations" is used here for the first time in the context of the geometric mean operator.…”
Abstract. A characterization of weights u, v is given for which the geometric mean operator Tf{x) = exp(i ^\nf{t)dt), defined for / positive a.e. on (0, co), is bounded from LP{{Q, oo); vdx) to L«((0, oo); udx),p e (0, oo) and q e [p, oo).
“…One can show that an easy modification of ideas used in [3] provides the following result which generalizes that of [3] (for notation see below).…”
Section: ])mentioning
confidence: 87%
“…In our method some ideas from [5][6][7]3] are employed. Let us point out that "the method of differential equations" is used here for the first time in the context of the geometric mean operator.…”
Abstract. A characterization of weights u, v is given for which the geometric mean operator Tf{x) = exp(i ^\nf{t)dt), defined for / positive a.e. on (0, co), is bounded from LP{{Q, oo); vdx) to L«((0, oo); udx),p e (0, oo) and q e [p, oo).
“…in Theorem 4.1 we get the results for operators Aafix) = ^lofiy)y^' <f^-x^Tñy)V^- (4) Define w £ B^ iff / log-w(x) < C w.…”
mentioning
confidence: 66%
“…It is thus of interest to characterize the weights w : E+ -> R+ for which (1.2) IIVllp.«^C||/||pflB, as this gives extensions of the classical norm inequalities. This is the reason why the study of (1.2) has recently attracted a great deal of attention [3,4,[6][7][8][9], beginning with [1] Ariño and Muckenhoupt for the averaging operator Af(x) = j¿ fo f to the more general version of [3] for operators of the type S<j>f(x) = /0 <p(t)f(tx)dt. All of these operators are special cases of (1.1).…”
Abstract. In this paper we characterize the weights w , v for which | \S,pf\ | < C\ 171 U, v , for / nonincreasing, where S^f = /0°° cj>{x, y)f(y) dy .
Abstract. A characterization of weights u, v is given for which the geometric mean operator Tf{x) = exp(i ^\nf{t)dt), defined for / positive a.e. on (0, co), is bounded from LP{{Q, oo); vdx) to L«((0, oo); udx),p e (0, oo) and q e [p, oo).
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