Ombrosi, Sheldy JavierPérez, CarlosRecchi, Jorgelina2024-02-032024-02-032016Ombrosi S, Perez C, Recchi J (2016) Quantitative weighted mixed weak-type inequalities for classical operators. Indiana Univ Math J 65(2):615–640. https://doi.org/10.1512/iumj.2016.65.57730022-251810.1512/iumj.2016.65.5773https://hdl.handle.net/20.500.14352/98567We improve on several mixed weak-type inequalities both for the Hardy-Littlewood maximal function and for Calder´on-Zygmund operators. These types of inequalities were considered by Muckenhoupt and Wheeden and later on by Sawyer estimating the L 1,∞(uv) norm of v −1T (f v) for special cases. The emphasis is made in proving new and more precise quantitative estimates involving the Ap or A∞ constants of the weights involved.engjournal articlehttps://doi.org/10.1512/iumj.2016.65.5773open accessAnálisis matemático12 Matemáticas