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pro vyhledávání: '"NAIMI, Mehdi"'
This paper presents a study of the generalized Davis-Wielandt radius of Hilbert space operators. New lower bounds for the generalized Davis-Wielandt radius and numerical radius are provided. An alternative of the triangular inequality for operators i
Externí odkaz:
http://arxiv.org/abs/2410.19679
Autor:
Naimi, Mehdi, Benharrat, Mohammed
We prove, in some cases in term of kippenhahn curve, that if 5-by-5 partial isometry whose numerical range is a circular disc then its center is must be the origin. This gives a partial affirmative answer of the Conjecture 5.1. of [H. l. Gau et al.,
Externí odkaz:
http://arxiv.org/abs/2108.04459
Autor:
BENHARRAT, Mohammed1 mohammed.benharrat@enporan.dz, NAIMI, Mehdi1 mehdi.naimi@univ-mosta.dz
Publikováno v:
Bulletin of the Transilvania University of Braşov: Series III Mathematics & Computer Science. 2023, Vol. 65 Issue 1, p57-75. 19p.
Autor:
Naimi, Mehdi, Benharrat, Mohammed
Publikováno v:
Tamkang Journal of Mathematics; 2024, Vol. 55 Issue 2, p195-201, 7p
Publikováno v:
Advances in Operator Theory; April 2024, Vol. 9 Issue: 2
Publikováno v:
Advances in Operator Theory; January 2024, Vol. 9 Issue: 1
Autor:
Naimi, Mehdi
Publikováno v:
Canadian Art Therapy Association Journal; March 2006, Vol. 19 Issue: 1 p12-16, 5p
Autor:
Naimi, Mehdi
Publikováno v:
Canadian Art Therapy Association Journal; March 2009, Vol. 22 Issue: 1 p26-27, 2p
Autor:
Naimi, Mehdi
Publikováno v:
Canadian Art Therapy Association Journal; September 2007, Vol. 20 Issue: 2 p57-58, 2p