A characterization for the spectral capacity of a finite system of operators
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Ştefan Frunză (1977)
Czechoslovak Mathematical Journal
Fujii, Masatoshi, Jiang, Jian Fei, Kamei, Eizaburo, Tanahashi, Kotaro (1998)
Journal of Inequalities and Applications [electronic only]
Jocić, Danko (1989)
Publications de l'Institut Mathématique. Nouvelle Série
Markin, Marat V. (2004)
Abstract and Applied Analysis
H.R. Dowson, T.A. Gillespie, P.G. Spain (1976)
Mathematische Annalen
Herbert Leinfelder (1979)
Mathematische Annalen
R. N. Mukherjee (1979)
Matematički Vesnik
Esteban Andruchow, Gustavo Corach, Mostafa Mbekhta (2013)
Open Mathematics
For a fixed n > 2, we study the set Λ of generalized idempotents, which are operators satisfying T n+1 = T. Also the subsets Λ†, of operators such that T n−1 is the Moore-Penrose pseudo-inverse of T, and Λ*, of operators such that T n−1 = T* (known as generalized projections) are studied. The local smooth structure of these sets is examined.
Markin, Marat V. (2002)
International Journal of Mathematics and Mathematical Sciences
Heinz Leutwiler, Sirkka-Liisa Eriksson (1986)
Mathematische Annalen
Karel Horák, Vladimír Müller, Pavla Vrbová (1987)
Aplikace matematiky
The uniqueness of the Wold decomposition of a finite-dimensional stationary process without assumption of full rank stationary process and the Lebesgue decomposition of its spectral measure is easily obtained.
A.R. Sourour (1979)
Mathematische Annalen
Arimoto, Akio (2002)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Putnam, C.R. (1981)
International Journal of Mathematics and Mathematical Sciences
Wilhelm Kaup (1977)
Mathematische Annalen
T.V. Panchapagesan (1987)
Revista colombiana de matematicas
Tomáš Kojecký (1990)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
B. Bollobas, E. Galanis (1976)
Δελτίο της Ελληνικής Μαθηματικής Εταιρίας
Frank Hansen (1979)
Mathematische Annalen
Pierre Cartier (1960/1961)
Séminaire Bourbaki
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