Media type: E-Article Title: Lacunary ideal summability and its applications to approximation theorem Contributor: Hazarika, Bipan; Esi, Ayhan Published: Springer Science and Business Media LLC, 2019 Published in: The Journal of Analysis, 27 (2019) 4, Seite 997-1006 Language: English DOI: 10.1007/s41478-018-0158-6 ISSN: 2367-2501; 0971-3611 Keywords: Applied Mathematics ; Geometry and Topology ; Algebra and Number Theory ; Analysis Origination: Footnote: