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Equality between different types of invertibility


Necessary and sufficient conditions for the between different types of invertibility are established.

Встановлені необхідні та достатні умови співпадіння різних типів оборотності.

Key words: Invertible, Drazin-Riesz inverse, SVEP.

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Article Information

TitleEquality between different types of invertibility
SourceMethods Funct. Anal. Topology, Vol. 27 (2021), no. 1, 31-36
MathSciNet   MR4252996
Milestones  Received 09/04/2020; Revised 06/02/2021
CopyrightThe Author(s) 2021 (CC BY-SA)

Authors Information

Hamid Boua
Mohammed First University, Pluridisciplinary Faculty of Nador, Labo LIABM, Nador, Morocco

Mohammed Karmouni
Cadi Ayyad University, Multidisciplinary Faculty, Safi, Morocco

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Hamid Boua and Mohammed Karmouni, Equality between different types of invertibility, Methods Funct. Anal. Topology 27 (2021), no. 1, 31-36.


@article {MFAT1504,
    AUTHOR = {Hamid Boua and Mohammed Karmouni},
     TITLE = {Equality between different types of invertibility},
   JOURNAL = {Methods Funct. Anal. Topology},
  FJOURNAL = {Methods of Functional Analysis and Topology},
    VOLUME = {27},
      YEAR = {2021},
    NUMBER = {1},
     PAGES = {31-36},
      ISSN = {1029-3531},
  MRNUMBER = {MR4252996},
       DOI = {10.31392/MFAT-npu26_1.2021.05},
       URL = {},


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