Objective The Cauchy integral operator is the prototype example of a singular integral operator in the complex variable settingand the fundamental object to be understood in the problem of characterization of removable sets for bounded analytic functions. By many different reasons, the study of this operator has always been confined to the setting of Lipschitz paths.However, recent developments in a relatively new technique called time-frequence analysis suggests that the theory may be extended to more general paths.Therefore, we propose the study of boundedness of Cauchy integral operator defined over paths that can be rougher than Lipschitz. We are particularly interested in the case when the derivative of the function defining the path belongs to a particular Lebesgue space.For such purpose, we propose the use of time-frequency analysis and the use of variation norms.Once boundedness in Lebesgue spaces is obtained, we will be able to establish new lower bounds for the analytic capacity of a compact set, which which is a quantitative measurement of the possibility of being removable. Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2009-RG - Marie Curie Action: "Reintegration Grants" Call for proposal FP7-PEOPLE-2010-RG See other projects for this call Funding Scheme MC-ERG - European Re-integration Grants (ERG) Coordinator UNIVERSITAT AUTONOMA DE BARCELONA EU contribution € 45 000,00 Address EDIF A CAMPUS DE LA UAB BELLATERRA CERDANYOLA V 08193 Cerdanyola Del Valles Spain See on map Region Este Cataluña Barcelona Activity type Higher or Secondary Education Establishments Administrative Contact Queralt Gonzalez Matos (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data