The Lagrange multipliers theorem for locally convex metric spaces
Mieczysław Altman (1984)
Banach Center Publications
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Mieczysław Altman (1984)
Banach Center Publications
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K. Rusek (1983)
Annales Polonici Mathematici
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Mohamed Aouf, Rabha El-Ashwah (2009)
Annales UMCS, Mathematica
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Let A denote the class of analytic functions with normalization [...] in the open unit disk [...] Set [...] and define [...] in terms of the Hadamard product [...] In this paper, we introduce several new subclasses of analytic functions defined by means of the operator [...] [...] .Inclusion properties of these classes and the classes involving the generalized Libera integral operator are also considered.
A. F. Kleiner (1973)
Colloquium Mathematicae
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A. Szaz (1981)
Matematički Vesnik
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Raymond Cheng, Javad Mashreghi, William T. Ross (2017)
Concrete Operators
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This paper is selective survey on the space lAp and its multipliers. It also includes some connections of multipliers to Birkhoff-James orthogonality
Ivan G. Todorov, Lyudmila Turowska (2010)
Banach Center Publications
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The present article is a survey of known results on Schur and operator multipliers. It starts with the classical description of Schur multipliers due to Grothendieck, followed by a discussion of measurable Schur multipliers and a generalisation of Grothendieck's Theorem due to Peller. Thereafter, a non-commutative version of Schur multipliers, called operator multipliers and introduced by Kissin and Schulman, is discussed, and a characterisation extending the description in the commutative...
K. Unni (1974)
Studia Mathematica
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E. Ligocka (1973)
Studia Mathematica
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Mohammed El Azhari (2017)
Annales Mathematicae Silesianae
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Let E be a complete uniform topological algebra with Arens-Michael normed factors [...] within an algebra isomorphism ϕ. If each factor Eα is complete, then every multiplier of E is continuous and ϕ is a topological algebra isomorphism where M(E) is endowed with its seminorm topology.
Pavlović, M. (1987)
Publications de l'Institut Mathématique. Nouvelle Série
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Damon M. Hay (2011)
Studia Mathematica
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We generalize some technical results of Glicksberg to the realm of general operator algebras and use them to give a characterization of open and closed projections in terms of certain multiplier algebras. This generalizes a theorem of J. Wells characterizing an important class of ideals in uniform algebras. The difficult implication in our main theorem is that if a projection is open in an operator algebra, then the multiplier algebra of the associated hereditary subalgebra arises as...
M. Stoll (1977)
Annales Polonici Mathematici
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Swadesh Kumar Sahoo, Navneet Lal Sharma (2015)
Annales Polonici Mathematici
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The paper of M. Ismail et al. [Complex Variables Theory Appl. 14 (1990), 77-84] motivates the study of a generalization of close-to-convex functions by means of a q-analog of the difference operator acting on analytic functions in the unit disk 𝔻 = {z ∈ ℂ:|z| < 1}. We use the term q-close-to-convex functions for the q-analog of close-to-convex functions. We obtain conditions on the coefficients of power series of functions analytic in the unit disk which ensure that they generate...
Mohamed Oudadess (1990)
Publicacions Matemàtiques
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Entire functions operate in complete locally A-convex algebras but not continuously. Actually squaring is not always continuous. The counterexample we give is multiplier algebra.
Petkova, Violeta (2009)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 42A45. For a Hilbert space H ⊂ L1loc(R) of functions on R we obtain a representation theorem for the multipliers M commuting with the shift operator S. This generalizes the classical result for multipliers in L2(R) as well as our previous result for multipliers in weighted space L2ω(R). Moreover, we obtain a description of the spectrum of S.
Aouf, M. K., Shamandy, A., Mostafa, A. O., Madian, S. M. (2011)
Mathematica Balkanica New Series
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2000 Mathematics Subject Classification: 30C45