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  • Author or Editor: I. Joó x
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Riesz bases of exponentials and sine-type functions

Acta Mathematica Hungarica
Volume/Issue:
Volume 51: Issue 1-2
DOI:
https://doi.org/10.1007/bf01903611
Authors:
S. Avdonin
and
I. Joó
Restricted access

Estimate for the difference of the second derivative of partial sums arising by non-negative selfadjoint extensions of sturm-liouville operators

Acta Mathematica Hungarica
Volume/Issue:
Volume 38: Issue 1-4
DOI:
https://doi.org/10.1007/bf01917528
Authors:
I. Joo
and
N. Lazetic
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On the expansion 1= Σq −n i

Periodica Mathematica Hungarica
Volume/Issue:
Volume 23: Issue 1
DOI:
https://doi.org/10.1007/bf02260391
Authors:
P. Erdős
and
I. Joó
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On the expansion 1=Σq −n i

Periodica Mathematica Hungarica
Volume/Issue:
Volume 25: Issue 1
DOI:
https://doi.org/10.1007/bf02454388
Authors:
P. Erdös
and
I. Joó

Without Abstract

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On the controllability of a string with restrained controls

Acta Mathematica Hungarica
Volume/Issue:
Volume 66: Issue 1-2
DOI:
https://doi.org/10.1007/bf01874351
Authors:
I. Joó
and
N. V. Su
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On the uniqueness of the expansions 333-01333-01333-01

Acta Mathematica Hungarica
Volume/Issue:
Volume 58: Issue 3-4
DOI:
https://doi.org/10.1007/bf01903963
Authors:
P. Erdős
,
M. Horváth
, and
I. Joó
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Null-Controllability of Discrete-Time Systems with Restrained Controls in Asplund Spaces

Acta Mathematica Hungarica
Volume/Issue:
Volume 84: Issue 4
DOI:
https://doi.org/10.1023/a:1006672915228
Authors:
I. Joó
and
Nguyen Van Su
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On the eigenfunction expansions associated with the Schrödinger operator having spherically symmetrical potential

Acta Mathematica Hungarica
Volume/Issue:
Volume 42: Issue 1-2
DOI:
https://doi.org/10.1007/bf01960556
Authors:
Š. A. Alimov
and
I. Joó
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A note on Ky Fan's minimax theorem

Acta Mathematica Hungarica
Volume/Issue:
Volume 39: Issue 4
DOI:
https://doi.org/10.1007/bf01896709
Authors:
I. Joó
and
L. L. Stachó
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On summability of orthogonal series

Acta Mathematica Hungarica
Volume/Issue:
Volume 29: Issue 1-2
DOI:
https://doi.org/10.1007/bf01896482
Authors:
G. Alexits
,
I. Joó
, and
K. Tandori
Restricted access