Research Team: Mathematical Analysis and its Applications
PUBLICATIONS
1. Hadi Obaid and Sid Ahmed ould Ahmed Mahmoud
(m,\infty)-expansive and (m,\infty)-contractive tuple of operators (Filomat) (2021) (ISI)
2. Sid Ahmed Ould Ahmed Mahmoud and Hadi Obaid
Alshammari. Joint m-quasihyponormal on a Hilbert space.
Ann. Funct. Anal. (2021) 12:42. https://doi.org/10.1007/s43034-021-00130-z 3. El Moctar Beiba and Sid Ahmed Ould Ahmed Mahmoud Joint posinormality
of operators in Hilbert Spaces Linear and MultilinearAlgebra(2021)(ISI) https://doi.org/10.1080/03081087.2021.1900048
4. R. Pradeep, P. Maheswari and Sid Ahmed Ould Ahmed
Mahmoud. ON m-QUASI-TOTALLY-(α, β)-NORMAL OPERATORS (Operator and Matrices
(2021).(ISI)
5. M.Cho and El Moctar Beiba, Sid Ahmed Ould Ahmed Mahmoud,
(n_1,…,n_p)-quasi-m-isomtric tuple of Operators. Annals of functional Analysis (2020) https://doi.org/10.1007/s43034-020-00093-7(ISI)
6. Elmocktar Ould beiba ,M.Guessrba and Sid Ahmed Ould
Ahmed Mahmoud On n-quasi-(A,m)-Isometric operators on semi- Hilbertian space. Bulletin of Mathematical analysis and
Volume 12 Issue 5(2020), Pages 8-26.
URL: http://www.bmathaa.org
7. Naeem Ahmad and Sid Ahmed Ould Ahmed Mahmoud On the class of k-quasi- (n, m)-normal operators . Hacettepe Journal of Mathematics and Statistics (2020)- (Paper in press) (ISI)
8. Messaoud Guesba and Ould Ahmed Mahmoud Sid Ahmed,
Paranormal Operators in Semi-Hilbertian Spaces. Afrika Matheematika (2020) (scopus). https://doi.org/10.1007/s13370-020-00805-1
9. Kais Feki and Sid Ahmed ould Ahmed Mahmoud, Davis-Wielandt
shells of semi Hilbertian space operators and its applications. Banach Journal of Mathematical Analysis.(March 2020)
(ISI impact factor 0.927) https://doi.org/10.1007/s43037-020-00063-0
10. Sid Ahmed Ould Ahmed Mahmoud , M.Cho and J.Eun Lee, (m,q)- isometric tuple of commuting mappings on metric spaces. Filomat (2020) (ISI)
11. Salah Mechri and Sid Ahmed Ould Ahmed Mahmoud, Class of
operators related to m-isometric operators. (Operator and Matrices) (2020) (ISI) 12. Samir Al Mohammady , Sid Ahmed ould Beinane and Sid Ahmed
ould Ahmed Mahmoud, (n,m)-A-normal and (n,m)-A-quasi-normal operators, Mathematical Bohemica (2020) (Scopus)
13. Ahmed M. and Sid Ahmed Ould Ahmed Mahmoud, Some classes of mappings on a metric spaces (Journal of Inovative Science) (2020) 14.Sid Ahmed Ould Ahmed MahmoudA.Saddi and K.Ghrairi,
Some results on Higher orders quasi-isometries. (Hacettepe journal of Mathematics ans Statistics) Preprint(2019.(ISI).
15 .Ould Beinane Sid AhmedOuld Ahmed Mahmoud Sid Ahmed On the class of n-power D-n-quasinormal operator on Hilbert Spaces. (Operators in Matrices) Preprint (2019)(ISI).
16. M. GUESBA, EL M. BEIBA AND SID AHMED OULD AHMED MAHMOUD
A-Joint hyponormality in Semi-Hilbertian spaces. (Peprint) Linear Multilinear algebra (2019)(ISI)
16.Ould Ahmed Mahmoud Sid Ahmedand OuldBeinane Sid Ahmed,
On the classes of (n,m)-power D-normal and (n,m)-power D-quasi-normal operators.Operators and Matrices. Volume 13, Number 3 (2019) .705-732(ISI) .doi:10.7153/oam-2019-51
18. M. Cho and Ould Ahmed Mahmoud Sid Ahmed,
(A, m)-Symmetric commuting tuples ofoperatrors on a
Hilbert space. Mathematical Inequalities and Applications Volume 22 Number 3 (2019), 931–947doi:10.7153/mia-2019-22-63 (ISI)
19. H.Bakloti, K.Feki and Ould Ahmed Mahmoud Sid Ahmed,
Joint normality of Operators in semi-Hilbertian spaces. Preprint( Linear and Multilinear Algebra. 2019)(ISI) https://doi.org/10.1080/03081087.2019.1593925 20. A. Benaliand Ould Ahmed Mahmoud Sid Ahmed ,
(\alpha,\beta)- A-normal operators in Semi-Hilbertian spaces.
(AfrikaMatematikaAfrikaMatematika (2019) 30:903–920
https://doi.org/10.1007/s13370-019-00690-3 (Scopus).
21. Ould Ahmed Mahmoud Sid Ahmed , Isometric operators in semi- Hilbertian. Journal of Innovative Science and Technology,(JIST) Issue(1) Vo.(1) 2019.
22. Ould Ahmed Mahmoud Sid Ahmed , semi groups by a pair of generalized mixed linear regular
ordinary differential operators with interface condition. Italian Journal of Pure and Applied Mathematics N. 42{2019 (809{832) (scopus)
23.Ould Ahmed mahmoud Sid Ahmed, Muneocho and J.Eun
Lee, On (m,C)-isometric commuting tuples of operators on a Hilbert space. Results Math. 73 (2018), no. 2, Art.51, 31
pp.(ISI).https://doi.org/10.1007/s00025-018-0810-0
24. Ould Ahmed Mahmoud Sid Ahmed,Muneo Cho and Ji E. Lee, On n-quasi-(m, C)-isometric operators. Linear and Multilinear
algebra (2018)(ISI)https://doi.org/10.1080/03081087.2018.1524437 25.H.Baklouti,K.Feki and Ould Ahmed Mahmoud Sid Ahmed,
Joint numerical ranges of operators in semi-Hilbertian spaces.
Linear Algebra and its Applications 555 (2018) 266–284.(ISI) 26.Ould Ahmed Mahmoud Sid Ahmed On (m, q)-partial
isometries and m-invertible tuples of commuting operators.
Italian Journal of Pure and Applied Mathematics No.(40) .438- 463 (2018). (Scopus)
27. A. Benali and OuldAhmd Mahmoud Sid Ahmed,
Generalization of Kaplansky Theorem for some (p, k)- Quasihyponormaloprators. Communications in Applied Analysis, 21, No. 4 (2017), 550-575 .
28. Ould Ahmed Mahmoud SidAhmed andA.Benali, Hyponormal and k-Quasihyponormal operators on semi –
Hilbertian The Australian Journal of Mathematical Analysis and Applications. Vo. 13, Issue 1, Article 7.1—22 , (2016).(Scopus)
29. Ould Ahmed Mahmoud Sid Ahmed,(m, p)-Hyperexpansive mappings in metric spaces. Note di mathmatica 35, no.2
30.Ould Ahmed Mahmoud Sid Ahmed,On A(m; p)-expansive an A(m,p)-hyperexpansiveoprators on Banach spaces–II.
Journal of Mathematical and Computaional science 5(2015) No 2. pp.123-148
31.Ould Ahmed Mahmoud Sid Ahmed, Generalization of $m$-
Partial isometries in Hilbert spaces . International Journal of Pure and Applied Mathematics Vol.104,No 4 (2015) 599--619.(Scopus)
32.Ould Ahmed Mahmoud Sid Ahmed,The single
valued extension property and Bishop s property
(\beta) for some generalized classes ofoperators on Hilbert spaces. International Journal of Pure and Applied
Mathematics Volume 95 No. 3.2014, 427-452.(Scopus)
33. H.J.Sidi andOuld Ahmed Mahmoud Sid Ahmed, Positive-normal operators in Semi-Hilbertian spaces. International Mathematical Forum, Vol. 9, 2014, no. 11,533 – 559.
34. Ould Ahmed Mahmoud Sid Ahmed, On A(m, p)-expansive and A(m, p)-hyperexpansiveoprators on Banach spaces –I.
Aljouf Science andEngineering Journal 2014; 1(1): 23-40.
35.Ould Ahmed Mahmoud SidAhmed and Adel Saddi , A-m-
Isometric operators in Semi-Hilbertianspaces.Linear Algebra and its applications 436(10). 3929--3935 2010 (ISI )
36. Ould Ahmed Mahmoud Sid Ahmed, On Some Normality – Like properties and Bishops property (\beta) for a Class
Operators on Hilbert SpacesSpaces. International Journal of Mathematics and Mathematical Sciences Volume 2012, Article ID 975745, 20 pages.(Scopus)
37.Ould Ahmed Mahmoud Sid Ahmed,Some properties of m-isometries and m-Invertible operator on Banach spaces.
ActaMathematica Scientia 2012,32B(2) , 520--530.(ISI)
38.Ould Ahmed Mahmoud Sid Ahmed,On the class of n-power quasi-normal operator on Hilbert space. Bulletin of
Mathematical Analysis and Applications. Vol. 3, Issue 2(2011), Pages 213-228.
39. Ould Ahmed Mahmoud Sid Ahmed,On the class of n-power quasi-normal operator on Hilbert space. Bulletin of
Mathematical Analysis and Applications. Vol. 3, Issue 2(2011), Pages 213-228.
40.Ould Ahmed Mahmoud Sid Ahmed, m-isometric operators
on Banach spaces. Asian-European Journal of Mathematics Vol.3,No.1(2010)1-19.(Scopus).
41. Ould Ahmed Mahmoud Sid Ahmed and A.Saddi, Analyticity of Semigroups Generated by Singular Differential Matrix
Operators. Applied Mathematics, (2010), (1), 283-287.
42. A. Saddi and Ould Ahmed Mahmoud Sid Ahmed, m-Partial isometries on Hilbert spaces. International Journal of
Functional Analysis, Operator Theory and Applications Volume 2, Issue 1, 67-83 ( 2010).(Scopus)
43.M. OuldSidiSid Ahmed Beinane “Regional gradient optimal control problem governed by a distributed bilinear systems”, TELKOMNIKA (Telecommunication Computing Electronics and Control),17(4), 2019, (Scopus SJR 0.265).
44. M. OuldSidiR. Zine “An iterative solution for a class of optimization problems”,
Italian journal of pure and applied mathematics, 42, 2019, (Scopus SJR 0.224).
45. R. Zine M.OuldSidi “Regional optimal control problem governed by distributed bilinear hyperbolic systems”, International Journal of Control,
Automation and Systems, Vol. 16, No 3, pp 1060–1069, 2018. (ISI Impact factor 1.687).
45.R. Zine M.OuldSidi “Regional optimal control problem with minimum energy for a class of bilinear distributed systems” IMA Journal of Mathematical Control and Information,Volume 35, Issue 4, 18, Pages 1187–1199, December 2018. (ISI Impact factor 1.273).
46.M. OuldSidi“Interior-exterior polynomial path-following approach for Convex quadratic programming” International Journal of Pure and Applied Mathematics , 112 (1), 2016. (Scopus SJR 0.322)
47. M. OuldSidi “Quadratic control problem for bilinear hyperbolic systems”, Aljouf
Science and Engineering Journal, Vol. 1, No 1, 2014.
48.M. OuldSidiS. OuldBeinane, “Regional quadratic problem for distributed bilinear
systems with bounded controls”, International Journal of Pure and Applied Mathematics , Vol. 90, No 4, 2014. (Scopus SJR 0.322).
49.Jawhar Hbil and Mohamed Zaway On the essential singularities for positive currents Journal: International Journal of Mathematics and Computer science, 15(2020), no 1, 213-222.
50. I.Omar Ahmed, Sarosh A., N.Ahmad and Sid Ahmed
Ould Ahmed Mahmoud,Generalization of weakly G-expansive and weakly G- contractive mappings in G-metric spaces. Advances in Mathematics: Scientific Journal 9 (2020).
51. A. M. Ahmeda, Samir Al Mohammady, Lama Sh. Aljoufia,
Expressions and dynamical behavior of solutions of a class of rational difference equations of fifteenth-order. JMCS, volume 25, Issue 1, pp 10-- 22http://dx.doi.org/10.22436/jmcs.025.01.02
52. A. A. AL-Dohiman, Joint n-normality of linear transformations, JMCS, ol, Issue 4, pp 361--369http://dx.doi.org/10.22436/jmcs.025.04.06
53. Naeem Ahmad, (P,m)-B-Normaal and P-B-quasiparanormal operators
In /semi-Hilbertian spaces. Advances in Operator Theory 2021-01 | journal-article DOI: 10.1007/s43036-020-00118-x
54. Sid Ahmed O.Beinane ,J.S. Hamidou and Sid Ahmed O.
A.Mahmoud\Psi(m,q)-isometric mapping ,Autralian journal of Mathematical analysis and Applications. (2020).
55. A. M. Ahmed , Samir Al Mohammady & Lama Sh. Aljoufi ,Expressions and Dynamical Behavior of Solutions of a Class of Rational Difference Equations of Fifteenth-Order, Journal of Mathematics and Computer Science (JMCS), Wos and Scopus, http://dx.doi.org/10.22436/jmcs.025.01.02 (2021).
56. Lama Sh. Aljoufi, A. M. Ahmed & Samir Al Mohammady, Global Behavior of a Third-Order Rational Difference Equation, Journal of Mathematics and
Computer Science (JMCS), Wos and Scopus,
http://dx.doi.org/10.22436/jmcs.025.03.08 (2021).