On the closedness of the sum of n subspaces of a Hilbert space I Feshchenko
arXiv preprint arXiv:1201.3026, 2012
19 2012 Dissecting a brick into bars I Feshchenko, D Radchenko, L Radzivilovsky, M Tantsiura
Geometriae Dedicata 145 (1), 159-168, 2010
5 2010 On the closedness of the sum of ranges of operators Ak with almost compact products Ai⁎ Aj IS Feshchenko
Journal of Mathematical Analysis and Applications 416 (1), 24-35, 2014
4 2014 When is the sum of complemented subspaces complemented? I Feshchenko
arXiv preprint arXiv:1606.08048, 2016
3 2016 On the essential spectrum of the sum of self-adjoint operators and the closedness of the sum of operator ranges IS Feshchenko
Banach Journal of Mathematical Analysis 8 (1), 55-63, 2014
3 2014 Systems of subspaces in Hilbert space that obey certain conditions, on their pairwise angles A Strelets, I Feshchenko
St. Petersburg Mathematical Journal 24 (5), 823-846, 2013
3 2013 A sufficient condition for the sum of complemented subspaces to be complemented IS Feshchenko
Доповіді НАН України, 2019
2 2019 On the closedness of the sum of subspaces of the space I Feshchenko
Colloquium Mathematicum 173, 9-14, 2023
2023 When is the sum of closed subspaces of a Hilbert space closed? I Feshchenko
arXiv preprint arXiv:2012.08688, 2020
2020 On the inverse best approximation property of systems of subspaces of a Hilbert space I Feshchenko
arXiv preprint arXiv:2002.01959, 2020
2020 On the optimal error bound for the first step in the method of cyclic alternating projections I Feshchenko
arXiv preprint arXiv:1908.00531, 2019
2019 On the divergence of series of the form\sum_ {k= 1}^\infty\| A_k x\|^ p I Feshchenko
arXiv preprint arXiv:1208.1863, 2012
2012 On absolutely representing families of subspaces in Banach spaces IS Feshchenko
arXiv preprint arXiv:1206.5496, 2012
2012 On representing and absolutely representing systems of subspaces in Banach spaces I Feshchenko
arXiv preprint arXiv:1201.1308, 2012
2012 First_Name Family_Name UNIVERSITY Country T Cristian, D Radchenko, I Iurchenko, D Baranov, I Feshchenko, ...
Danylo RadchenkoETH ZurichПідтверджена електронна адреса в math.ethz.ch
