DOI: 10.68381/jca22027 ISSN: 0944-6532

Boundedness Criterions for the Hardy Operator in Weighted L p(·) (0,l) Space

Farman Mamedov, Firana M. Mammadova, Mushviq Aliyev

Equivalent conditions are proved for the Hardy type weighted inequality

\Big\Vert W(\cdot)^{-1}\sigma(\cdot)^{\frac{1}{p(\cdot)}} \int_{0}^{x} f(t)dt \Big \Vert_{L^{p(\cdot)}(0,l)} \leq C \Big \Vert \omega(\cdot)^{ \frac{1}{p(\cdot)}} f(\cdot) \Big \Vert_{L^{p(\cdot)}(0,l)}, \; \; \; f \geq 0 ∥ W ( ⋅ ) − 1 σ ( ⋅ ) 1 p ( ⋅ ) ∫ 0 x f ( t ) d t ∥ L p ( ⋅ ) ( 0 , l ) ≤ C ∥ ω ( ⋅ ) 1 p ( ⋅ ) f ( ⋅ ) ∥ L p ( ⋅ ) ( 0 , l ) ,          f ≥ 0
to be fulfilled in the norms of a Lebesgue space with variable exponent
L^{p(\cdot)}(0,l) L p ( ⋅ ) ( 0 , l )
. It is assumed that the function
p(.) p ( . )
is a monotone function.