DSpace Collection: 1991 Volume 11
http://hdl.handle.net/10525/2344
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Инвариантные подпространства в пространствах граничных значений аналитических функций в областях со спрямляемой границей
http://hdl.handle.net/10525/2374
Title: Инвариантные подпространства в пространствах граничных значений аналитических функций в областях со спрямляемой границей<br/><br/>Authors: Тумаркин, Г. Ц.Concerning trivial maximal Abelian subalgebras of B(X)
http://hdl.handle.net/10525/2373
Title: Concerning trivial maximal Abelian subalgebras of B(X)<br/><br/>Authors: Zelazko, W.On the classifications of unitary lowest weight representations of conformal current algebras
http://hdl.handle.net/10525/2372
Title: On the classifications of unitary lowest weight representations of conformal current algebras<br/><br/>Authors: Todorov, I. T.Exponential approximation in the norms and semi-norms
http://hdl.handle.net/10525/2371
Title: Exponential approximation in the norms and semi-norms<br/><br/>Authors: Pych-Taberska, Paulina; Taberski, Roman<br/><br/>Abstract: The deviations of some entire functions of exponential type from real-valued functions and their derivatives are estimated. As approximation metrics we use the Lp-norms and power variations on R. Theorems presented here correspond to the Ganelius and Popov results concerning the one-sided trigonometric approximation of periodic functions (see [4, 5 and 8]). Some related facts were announced in [2, 3, 6 and 7].The indecomposability of a certain kind of semi-norms
http://hdl.handle.net/10525/2370
Title: The indecomposability of a certain kind of semi-norms<br/><br/>Authors: Skordev, Dimiter G.A theorem of Whitney’s type in R2
http://hdl.handle.net/10525/2369
Title: A theorem of Whitney’s type in R2<br/><br/>Authors: Sendov, Blagovest H.; Takev, Milko D.On linear operators acting in spaces of analytic functions and commuting with Euler's operator
http://hdl.handle.net/10525/2368
Title: On linear operators acting in spaces of analytic functions and commuting with Euler's operator<br/><br/>Authors: Raichinov, I.; Raichinov, R. I.On the Pythagorean theorem and the triangle inequality
http://hdl.handle.net/10525/2367
Title: On the Pythagorean theorem and the triangle inequality<br/><br/>Authors: Price, G. BaleyOn generalized orlicz sequence spaces of Fourier coefficients for trigonometric gap series. I.
http://hdl.handle.net/10525/2366
Title: On generalized orlicz sequence spaces of Fourier coefficients for trigonometric gap series. I.<br/><br/>Authors: Musielak, J.<br/><br/>Abstract: We investigate the operator associating with a function fєLp2π, 1<p≤2, the sequence of Fourier coefficients of ƒ with respect to a trigonometric gap system, as well as an operator from a modular space X ρs(ϕ) to the generalized Orlicz sequence space lϕ.On the strong asymptotic behavior of asymptotically nonexpansive semi-groups in Banach spaces
http://hdl.handle.net/10525/2365
Title: On the strong asymptotic behavior of asymptotically nonexpansive semi-groups in Banach spaces<br/><br/>Authors: Miyadera, IsaoOn the logarithm of the differential operator
http://hdl.handle.net/10525/2364
Title: On the logarithm of the differential operator<br/><br/>Authors: Mikusinski, Jan<br/><br/>Abstract: Two different proofs are given of the fact that In s= — s {In t + C}, where С is Euler’s constant.An application of the principle of topological induction to the extreme points theorem
http://hdl.handle.net/10525/2363
Title: An application of the principle of topological induction to the extreme points theorem<br/><br/>Authors: Kounchev, OgnyanThe evolution of the areolar derivative analysis in hypercomplex
http://hdl.handle.net/10525/2362
Title: The evolution of the areolar derivative analysis in hypercomplex<br/><br/>Authors: Gheorghiev, GheorghiA solution of the trigonometric moment problem via Tagamlitzki's "Theorem of the Cones"
http://hdl.handle.net/10525/2361
Title: A solution of the trigonometric moment problem via Tagamlitzki's "Theorem of the Cones"<br/><br/>Authors: Genchev, Todor G.<br/><br/>Abstract: In 1952 Y. Tagamlitzki gave an elegant proof of the classical Bochner’s theorem on the positively definite functions. Unfortunately, he never published his proof. In this paper we consider a related but simpler problem, the trigonometric moment problem, by using Tagamlitzki’s approach.Cauchy sequences and completeness in quasi-metric spaces
http://hdl.handle.net/10525/2360
Title: Cauchy sequences and completeness in quasi-metric spaces<br/><br/>Authors: Doitchinov, DoitchinPositive precompact operators
http://hdl.handle.net/10525/2359
Title: Positive precompact operators<br/><br/>Authors: Cristescu, Romulus