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A note on compact operators on normed linear spaces
We show that there is no surjective compact operator on a normed linear infinite--dimensional space.
BA - Obecná matematika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Compactness of Hardy operators involving suprema
We study compactness properties of Hardy operators involving suprema on weighted Banach function spaces...
BA - Obecná matematika
- 2013 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Compactness and convergence with respect to a neighborhood operatror
, compactness and convergence defined in a natural way by the help of a neighborhood operator. We show that they behave analogously to the separation, compactnessWe introduce a concept of neighborhood operator on a...
BA - Obecná matematika
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Measures of weak non-compactness in spaces of nuclear operators
We show that in the space of nuclear operators from to (where ) the two natural ways of measuring weak non-compactness coincide. We also provide explicit formulas for these measures. As a consequence the same is proved for preduals ...
Pure mathematics
- 2019 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Eigenvalue problem for Linear Compact Symmetric Operators.
Eigenvalue problem for linear compact symmetric operators is considered.
BA - Obecná matematika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Journey to the Concept of a Compact Operator
The paper is devoted to the origination and the development of the notion of compact operator. The journey to its modern form illustrates the idea of passage from finite to infinite, from discrete to continuous. The influence of pro...
Pure mathematics
- 2018 •
- Jost
Rok uplatnění
Jost - Ostatní články v recenzovaných periodicích
Complementation in spaces of continuous functions on compact lines
We characterize order preserving continuous surjections between compact linearly ordered spaces which admit an averaging operator, together with estimates of the norm of such an operator. This result is used to the study of...
BA - Obecná matematika
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Compactness of the Hardy Operator and its Limiting Case
Inspired by some recent results concerning Hardy type inequalities where the equivalence of four scales of integral conditions is proved, we use related ideas to prove some new compactness results for the Hardy operator, and we give...
BA - Obecná matematika
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Construction variants of deep cultivators for vineyards
Frequent crossing of mechanization in interrows of vineyards induce adverse soil compaction. Deep cultivation is a work operation with positive effects on soil parameters. Conducting of operation significantly improves abso...
GB - Zemědělské stroje a stavby
- 2015 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Categorical neighborhood operators
and interior operators, convergence, separation and compactness with respect to a neighborhood operator, defined in a natural way.We introduce and study a concept of neighborhood operator on a category. Such an
BA - Obecná matematika
- 2011 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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