DSpace Collection: Volume 40, Number 3-4
http://hdl.handle.net/10525/3432
Serdica Mathematical Journal Volume 40, Number 2, 2014The Collection's search engineSearch the Channelsearch
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Contribution à l'étude des fonctions plurisousharmoniques convexes et analytiques
http://hdl.handle.net/10525/3465
Title: Contribution à l'étude des fonctions plurisousharmoniques convexes et analytiques<br/><br/>Authors: Abidi, Jamel<br/><br/>Abstract: 2010 Mathematics Subject Classification: 32A10, 32A60, 32U05, 32U15, 32T05.Notes on Lattice Ordered Aalgebras
http://hdl.handle.net/10525/3464
Title: Notes on Lattice Ordered Aalgebras<br/><br/>Authors: Yılmaz, Ruşen<br/><br/>Abstract: In this paper we introduce a new class of lattice ordered algebra, which will be called a pseudo-almost f-algebra; namely, a lattice ordered algebra A in which a ∧ b = 0 in A implies ab ∧ ba = 0. We present somefundamental properties of pseudo-almost f-algebras and consider their relationships with various type of lattice ordered algebras; mainely, f-algebras, almost f-algebras and d-algebras. 2010 Mathematics Subject Classification: Primary 46A40, 46B42; Secondary 06F25, 13J25.Strong Converse Result for Baskakov Operator
http://hdl.handle.net/10525/3463
Title: Strong Converse Result for Baskakov Operator<br/><br/>Authors: Gadjev, Ivan<br/><br/>Abstract: 2010 Mathematics Subject Classification: 41A36, 41A25, 41A27, 41A17.<br/><br/>Description: [Gadjev Ivan; Гаджев Иван]Empirical Bayes Two-Sided Test for the Parameter of Linear Exponential Distribution for Random Index
http://hdl.handle.net/10525/3462
Title: Empirical Bayes Two-Sided Test for the Parameter of Linear Exponential Distribution for Random Index<br/><br/>Authors: Juan, Huang<br/><br/>Abstract: In the case of random index, the empirical Bayes two-side test rule for the parameter of linear exponential distribution is constructed. The asymptotically optimal property for the proposed EB test is obtained under suitable conditions. It is shown that the convergence rates of the proposed EB test rules can arbitrarily close to O(n^−1/2). 2010 Mathematics Subject Classification: 62C12, 62F15.Essential Norms of Weighted Composition Operators on L^1 Müntz Spaces
http://hdl.handle.net/10525/3461
Title: Essential Norms of Weighted Composition Operators on L^1 Müntz Spaces<br/><br/>Authors: Al Alam, Ihab; Lefèvre, Pascal<br/><br/>Abstract: This paper discusses the problem of boundedness and compactness for weighted composition operators defined on a Müntz subspace of L^1([0,1]). We compute the essential norm of such operators when the symbol ϕ of the composition operator satisfies a special condition (condition (β)). As a corollary, we obtain the exact values of essential norms of composition and multiplication operators. This completes the corresponding results of the first named author in the framework of Müntz subspaces of C([0, 1]). 2010 Mathematics Subject Classification: 47B33, 47B38.On Lie Algebras with Exponential Growth of the Codimensions
http://hdl.handle.net/10525/3460
Title: On Lie Algebras with Exponential Growth of the Codimensions<br/><br/>Authors: Bogdanchuk, O. A.; Mishchenko, S. P.; Verëvkin, A. B.<br/><br/>Abstract: We study the asymptotic behaviour of the codimension sequence of varieties of Lie algebras variety over a field of characteristic zero. We construct an infinite series of such varieties with different fractional exponents. This extends the special cases known before. 2010 Mathematics Subject Classification: 17B01, 16R10, 16P90.Subordinated Markov Branching Processes and Lévy Processes
http://hdl.handle.net/10525/3459
Title: Subordinated Markov Branching Processes and Lévy Processes<br/><br/>Authors: Mayster, Penka<br/><br/>Abstract: We consider the jump structure of the subordinated Lévy processes and subordinated Markov branching processes. Subordination provides a method of constructing a large subclass of Markov or Lévy processes Y (t) = X(T (t)), where X(t) is a Markov or Lévy process and T (t) is a continuous time subordinator independent of X(t); that is a Lévy process with positive increments and T (0) = 0. Let X(t) be a Lévy process. Then subordination preserves the independence and stationarity of the increments, but it changes their amplitudes and the total mass of the Lévy measure. Let X(t) be a Markov branching process. Then subordination (owing to the independence of X(t) and T (t)) preserves the Markov property, but it disturbs the branching property. The infinitesimal generator of the subordinated process Y (t) involves the total progeny of reproduction. The intensity of the jump times depends on the subordinator’s Bernstein function. 2010 Mathematics Subject Classification: 60J80, 60K05.<br/><br/>Description: [Mayster Penka; Майстер Пенка]