[Authors]
 Oleg Reinov

[Title]
 On a question of Boris Mitjagin

[AMS Subj-class]
 47B10 Operators belonging to operator ideals

[Abstract]
 This is a general version of the talks at the International Conferences:
 1) "On products of nuclear operators", Relations Between Banach Space Theory
    and Geometric Measure Theory,
    08 - 12 June 2015, Mathematics Institute, University of Warwick, Coventry,
    United Kingdom;
 2) "On a question of Boris Mitjagin", XXIV St.Petersburg Summer Meeting in
    Mathematical Analysis and a Summer School for Young Scientists, 
    June 25-30, 2015, Euler International Mathematical Institute, St. Petersburg.
 The main result is that, generally, a product of two nuclear operators can not
 be factored through a Hilbert space trace-operator.

[Comments]
 LaTeX, English, 25 pp.

[Contact e-mail]
 orein51@mail.ru