TY - CONF AU - Kérchy, László ED - Helson, H TI - On a conjecture of Teodorescu and Vasyunin T2 - Special classes of linear operators and other topics PB - Birkhäuser Publishing Ltd. C1 - Basel T3 - Operator Theory: Advances and Applications, ISSN 0255-0156 PY - 1988 SP - 169 EP - 172 PG - 4 UR - https://m2.mtmt.hu/api/publication/1063095 ID - 1063095 LA - English DB - MTMT ER -