WorldCat Identities

Yushchenko, Kateryna

Works: 4 works in 4 publications in 1 language and 11 library holdings
Genres: Juvenile works  Fiction  Records and correspondence  Sources  Archives  History 
Roles: Translator, Author
Classifications: E183.8.H8, E
Publication Timeline
Most widely held works by Kateryna Yushchenko
The brave little airplane by Natalya Vovk( Book )

1 edition published in 2016 in English and held by 8 WorldCat member libraries worldwide

This is a moving story of a little airplane that was often teased by big airplanes because of his size. Then one day, he was the only one able to save a small boy far away in the mountains. This book teaches us that we should always believe in ourselves. Ages 5+
The unknown genocide of Ukrainians, 1932-1933 execution by hunger( Book )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

On two properties of operator algebras : logmodularity of subalgebras, embeddability into R [superscript omega] by Kateryna Yushchenko( )

1 edition published in 2012 in English and held by 1 WorldCat member library worldwide

This dissertation is devoted to several questions that arise in operator algebra theory. In the first part of the work we study the dilations of homomorphisms of subalgebras to the algebras that contain them. We consider the question whether a contractive homomorphism of a logmodular algebra into B(H) is completely contractive, where B(H) denotes the algebra of all bounded operators on a Hilbert space H. We show that every logmodular subalgebra of Mn(C) is unitary equivalent to an algebra of block upper triangular matrices, which was conjectured by V. Paulsen and M. Raghupathi. In particular, this shows that every unital contractive representation of a logmodular subalgebra of Mn(C) is automatically completely contractive. In the second part of the dissertation we investigate certain matrices composed of mixed, second-order moments of unitaries. The unitaries are taken from C*-algebras with moments taken with respect to traces, or, alternatively, from matrix algebras with the usual trace. These sets are of interest in light of a theorem of E. Kirchberg about Connes' embedding problem and provide a new approach to it. Finally, we give a modification of I. Klep and M. Schweighofer's algebraic reformulation of Connes' embedding problem by considering the *-algebra of the countably generated free group. This allows us to consider only quadratic polynomials in unitary generators instead of arbitrary polynomials in self-adjoint generators
[White House Staff and Office files, 1981-1989 : selections from the Ronald Reagan Library papers.]( )

in English and held by 1 WorldCat member library worldwide

Collection contains reproductions of selections from Ronald Regan Presidential Library archives from the Ronald Reagan White House staff and Office files, 1981-1989. The bulk of the collection is from the Katherine Chumachenko Files. Includes papers, letters, reports, facsimiles of newspaper clippings, typescript and manuscript memos, and forms
Audience Level
Audience Level
  Kids General Special  
Audience level: 0.47 (from 0.35 for The brave ... to 0.99 for The unknow ...)

Alternative Names
Chumachenko, Kateryna Mykhaĭlivvna, 1961-

Chumachenko, Katherine Clare, 1961-

I︠U︡shchenko, Kateryna, 1961-

Katerina Čumačenko-Juščenko

Kateryna Joesjtsjenko-Tsjoematsjenko Amerikaans politica

Kateryna Jusjtjenko-Tjumatjenko

Kateryna Juszczenko

Kateryna Yushchenko Former U.S. State Department official; First Lady of Ukraine

Kateryna Yushchenko personnalité politique américaine

Kateryna Yushchenko político estadounidense

Kateryna Yushchenko US-amerikanesch Politikerin

Kateryna Yushchenko US-amerikanische Politikerin

Yushchenko, Kateryna Chumachenko, 1961-

Екатерина Михайловна Ющенко супруга президента Украины Виктора Ющенко

Ющенко Катерина Михайлівна

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