en عمومى General پژوهشي Research paper <p>Fusion frames are a generalized form of frames in Hilbert spaces. In the present paper we introduce Bessel subfusion sequences and subfusion frames and we investigate the relationship between their operation. Also, the definition of the orthogonal complement of subfusion frames and the definition of the completion of Bessel fusion sequences are provided and several results related with these notions are shown.</p> Frame, Fusion frame, Subfusion frame, Completion. 31 38 http://ijmsi.ir/browse.php?a_code=A-10-1-123&slc_lang=en&sid=1 Z. Amiri 10031947532846002224 10031947532846002224 Yes M.A. Dehghan 10031947532846002225 10031947532846002225 No E. Rahimi 10031947532846002226 10031947532846002226 No L. Soltani 10031947532846002227 10031947532846002227 No