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Summary

This communication is concerned with the general circumstances under which the corona graeca of the Holy Crown of Hungary would have been produced in Constantinople. It is first considered in the context of „diplomatic gifts”, and is compared with other enamels of the same period that are now in Tbilisi, although it is usually agreed that these are of lower artistic standard than those in Budapest. The point is made that the crown must be the result of the same technical restrictions as any other examples of Byzantine enamel, and that this aspect of production could have involved the re-use of individual plaques, such as that with a rounded top portraying Michael VII Doukas. The question of the locality in the city where the workshop in which the crown was made is discussed, and the minimal evidence for the existence of a „palace workshop”is noted. It is suggested that the modest value of the gems in the crown could be the result of diplomatic or economic considerations; for modern eyes the contrast between them and the perfection of the enamels demands some explanation of this kind. It is pointed out that all the evidence points to there never having been any enamels used in the crowns worn by Byzantine emperors.

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Acta Biologica Hungarica
Authors:
Elza Azmaiparashvili
,
Ekaterine Berishvili
,
Z. Kakabadze
,
O. Pilishvili
,
Ekaterine Mikautadze
,
R. Solomonia
,
M. Jangavadze
, and
D. Kordzaia

Kordzaia, D. (1990) Extrahepatic cholestasis . Ganatleba, Tbilisi, Georgia. Kordzaia D. Extrahepatic cholestasis 1990

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. [12] Zhizhiashvili , L. 1969 Conjugate Functions and Trigonometric Series Tbilisi University Press Cambridge (in Russian

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The boundedness of the Marcinkiewicz maximal operator for double Vilenkin-Fourier series from the martingale Hardy-Lorentz space H p,q into the Lorentz space L p,q is studied.

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Abstract  

The boundednes of (C,α)-means of the cubic partial sums of d-dimensional Walsh-Fourier series is studied from the martingale Hardy space H p into the space L p .

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Abstract  

The behavior of generalized Cesàro (C, α n )-means (α n ∈ (0, d), d > 0) of trigonometric Fourier series of H ω classes in the space of continuous functions is studied. The sharpness of the results obtained is shown.

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Abstract  

A theorem of Ferenc Lukács determines the jumps of a periodic Lebesgue integrable function f at each point of discontinuity of the first kind in terms of the partial sums of the conjugate Fourier series of f. The aim of this note is to prove analogous theorems for functions and series, introduced by Taberski ([10], [11]).

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Abstract  

In the paper, we investigate the connection between the properties of a function and its Haar-Fourier coefficients. We show that not only the Haar-Fourier coefficients have bounded order of magnitude, but also their differences do have.

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