Dimitrios Pappas

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Dr. Vasilios N. KatsikisFull Professor, National and Kapodistrian University of AthensVerified email at econ.uoa.gr
Predrag StanimirovicUniversity of Nis, Faculty of Sciences and Mathematics, Department of Computer ScienceVerified email at pmf.ni.ac.rs
Dr. SPIROS CHOUNTASISSection Manager, ECC Remote Monitoring Section at Independent Power Transmission Operator S.A.Verified email at admie.gr
Ivan StanimirovicUniversity of Niš, Associate professor, Faculty of Sciences and MathematicsVerified email at pmf.edu.rs
Igor StojanovicFaculty of Computer Science, Goce Delcev UniversityVerified email at ugd.edu.mk
Athanassios PetraliasDepartment of Statistics, Athens University of Economics and BusinessVerified email at aueb.gr
George KaimakamisHellenic Army AcademyVerified email at sse.gr
Zoran ZdravevProfessor of Information Technologies, Faculty of computer science, Goce Delcev UniversityVerified email at ugd.edu.mk
A.N.YannacopoulosProfessor (Stochastic Analysis), Dept. of Statistics, Athens University of Economics and BusinessVerified email at aueb.gr
Aris Perperoglou Ph.D.Head of Predictive Modelling, GSKVerified email at gsk.com
Nikos MatzakosAssistant Professor, ASPETEVerified email at aspete.gr
Dr. Shwetabh SrivastavaPh.D. Department of Mathematics, Indian Institute of Technology Kharagpur, IndiaVerified email at iitkgp.ac.in
Milan B. TasicFull Professor, Department of Computer Science, University of Nis, SerbiaVerified email at pmf.edu.rs
Dimitris Sklavounos (Ph.D)Metropolitan College, GreeceVerified email at mitropolitiko.edu.gr

Dimitrios Pappas

Visiting Lecturer, Athens University of Economics & Business, Dept. of Statistics

Verified email at aueb.gr - Homepage

Linear Algebra Applied Mathematics Operator theory Image & signal processing


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An improved method for the computation of the Moore-Penrose inverse matrix AP V. Katsikis, D. Pappas Applied Mathematics and Computation 217, 9828- 9834, 2011	104	2011
Applications of the Moore‐Penrose Inverse in Digital Image Restoration S Chountasis, VN Katsikis, D Pappas Mathematical Problems in Engineering 2009 (1), 170724, 2009	70	2009
Fast computing of the Moore-Penrose inverse matrix V Katsikis, D Pappas The Electronic Journal of Linear Algebra 17, 637-650, 2008	62	2008
Full-rank representations of outer inverses based on the QR decomposition PS Stanimirović, D Pappas, VN Katsikis, IP Stanimirović Applied Mathematics and Computation 218 (20), 10321-10333, 2012	59	2012
Factorizations of EP operators D Drivaliaris, S Karanasios, D Pappas Linear algebra and its applications 429 (7), 1555-1567, 2008	52	2008
Digital image reconstruction in the spectral domain utilizing the Moore‐Penrose inverse S Chountasis, VN Katsikis, D Pappas Mathematical Problems in Engineering 2010 (1), 750352, 2010	42	2010
Optimal portfolio selection with singular covariance matrix D Pappas, K Kiriakopoulos, G Kaimakamis International Mathematical Forum 5 (47), 2305-2318, 2010	33	2010
Generalized inverses and special type operator algebras S Karanasios, D Pappas Facta Universitatis (NIS), Series Mathematics and Informatics 21, 41-48, 2006	31	2006
Removal of blur in images based on least squares solutions PS Stanimirović, S Chountasis, D Pappas, I Stojanović Mathematical Methods in the Applied Sciences 36 (17), 2280-2296, 2013	24	2013
Markov chain lumpability and applications to credit risk modelling in compliance with the International Financial Reporting Standard 9 framework K Georgiou, GN Domazakis, D Pappas, AN Yannacopoulos European Journal of Operational Research 292 (3), 1146-1164, 2021	15	2021
Symbolic computation of AT, S (2)-inverses using QDR factorization PS Stanimirović, D Pappas, VN Katsikis, IP Stanimirović Linear algebra and its applications 437 (6), 1317-1331, 2012	14	2012
Image deblurring process based on separable restoration methods P Stanimirović, I Stojanović, S Chountasis, D Pappas Computational and Applied Mathematics 33 (2), 301-323, 2014	12	2014
Minimization of constrained quadratic forms in Hilbert spaces D Pappas Annals of Functional Analysis 2 (1), 1-12, 2011	12	2011
Computing {2, 4} and {2, 3}-inverses by using the Sherman–Morrison formula PS Stanimirović, VN Katsikis, D Pappas Applied Mathematics and Computation 273, 584-603, 2016	10	2016
Minimization of quadratic forms using the Drazin-inverse solution PS Stanimirović, D Pappas, S Miljković Linear and Multilinear Algebra 62 (2), 252-266, 2014	10	2014
The restricted weighted generalized inverse of a matrix V Katsikis, D Pappas The Electronic Journal of Linear Algebra 22, 1156-1167, 2011	10	2011
Image restoration via fast computing of the Moore-Penrose inverse matrix S Chountasis, D Pappas, VN Katsikis 2009 16th International Conference on Systems, Signals and Image Processing, 1-4, 2009	10	2009
The whittaker smoother and the moore-penrose inverse in signal reconstruction S Chountasis, VN Katsikis, D Pappas, A Perperoglou Appl. Math. Sci 6 (25), 1205-1219, 2012	9	2012
Image Reconstruction Methods for MATLAB Users–A Moore-Penrose Inverse Approach S Chountasis, VN Katsikis, D Pappas MATLAB—A Fundamental Tool for Scientific Computing and Engineering …, 2012	8	2012
Application of the least squares solutions in image deblurring PS Stanimirović, I Stojanović, VN Katsikis, D Pappas, Z Zdravev Mathematical Problems in Engineering 2015 (1), 298689, 2015	7	2015

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