On the definition of singular bilinear forms and singular linear operators

• Published in: Український математичний журнал
• Date: 1993
• Main Authors: Karwowski, W., Koshmanenko, V.D.
• Format: Article
• Language: English
• Published: Інститут математики НАН України 1993
• Subjects: Статті
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/154457
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: On the definition of singular bilinear forms and singular linear operators / W. Karwowski, V.D. Koshmanenko // Український математичний журнал. — 1993. — Т. 45, № 8. — С. 1084–1089. — Бібліогр.: 9 назв. — англ.

We revise various definitions of the notions of singular operator and singular form and propose the most suitable ones. We also present the simplest properties of these objects.