| Autor: |
Martín-Reyes, F. J., Sawyer, E. |
| Zdroj: |
Proceedings of the American Mathematical Society; 1989, Vol. 106 Issue: 3 p727-733, 7p |
| Abstrakt: |
A simple characterization is given for two-weight norm inequalities for generalized Hardy operators $ {T_\varphi }f(x) = \smallint _0^x\varphi (\tfrac{t}{x})f(t)dt$ $ \varphi :(0,1) \to (0,\infty )$ $ \varphi (ab) \leq D[\varphi (a) + \varphi (b)]$  . Included in particular are the Riemann-Liouville fractional integrals. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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