12,718 research outputs found
On the C*-algebra Generated by Toeplitz Operators and Fourier Multipliers on the Hardy Space of a Locally Compact Group
Let be a locally compact abelian Hausdorff topological group which is
non-compact and whose Pontryagin dual is partially ordered. Let
be the semigroup of positive elements in .
The Hardy space is the closed subspace of consisting of
functions whose Fourier transforms are supported on . In this paper
we consider the C*-algebra
generated by Toeplitz operators with continuous symbols on which vanish at
infinity and Fourier multipliers with symbols which are continuous on one point
compactification of on the Hilbert-Hardy space . We
characterize the character space of this C*-algebra using a theorem of Power.Comment: 11 page
Essential Spectra of Quasi-parabolic Composition Operators on Hardy Spaces of the Poly-disc
This work is a generalization of the results in [Gul] to bi-disc case. As in
[Gul], quasi-parabolic composition operators on the Hilbert-Hardy space of the
bi-disc are written as a linear combination of Toeplitz operators and Fourier
multipliers. The C*-algebra generated by Toeplitz operators and Fourier
multipliers on the Hilbert-Hardy space of the bi-disc is written as the tensor
product of the similar C*-algebra in one variable with itself. As a result we
find a nontrivial set lying inside the essential spectra of quasi-parabolic
composition operators
May Free Capital mobility before accession be unfavorable for admission to the EU ?
We examine the dynamics that may compensate the cost of redistribution policy in the European Union (EU), which is one of the obstacles for a candidate member country, namely Turkey to be admitted. We adress two main issues : i) may a total factor productivity (TFP) increases in the candidate country due to the positive effect of accession on institutional development compensate the cost of redistribution policy and ii) may free capital mobility before accession decrease EU’s incentive for admitting the candidate country. In a two-country model we assume that after Turkish accession, the European household gives a transfer to the Turkish household whereas an upwart TFP shift arises in Turkey due to the positive effect of accession on institutional development. We first find that a TFP increase in Turkey compensates the cost of transfer. Second, allowing for free capital mobility before accession turns out to be unfavorable for admission to the EU.EU accession, Turkey, capital mobility
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