Carte / Capitol carte #7519 ianuarie 2020

Methods of solving arithmetic problems (Metode de rezolvare a problemelor de aritmetica)
Revista/Volum: 978-606-25-0627-8

D. Breaz C. Muntean I.-L. Popa I. Stana

Carte / Capitol carte #7518 ianuarie 2014

Mathematics problems with solutions at tenure competion 1993-2013 (Probleme de matematica cu enunturi si solutii date la concursurile de titularizare 1993-2013)
Revista/Volum: 9786062500528

T. Ceausu M. Megan I.-L. Popa

Carte / Capitol carte #7517 ianuarie 2015

Elements of Aritmetics. Theory and Problems (Elemente de aritmetica. Teorie si probleme)
Revista/Volum: -

M.-G. Babutia A. C. Muntean I.-L. Popa I. Stana

Carte / Capitol carte #7516 ianuarie 2015

Linear discrete-time systems in infinite dimensional spaces
Revista/Volum: -

I.-L.Popa

Carte / Capitol carte #7515 ianuarie 2016

Arithmetics and Number Theory (Aritmetica si teoria numerelor)
Revista/Volum: 978-606-613-118-6

D. Breaz I.-L. Popa M. I. Stan

Articol #4238 ianuarie 2014

On h-Trichotomy of Linear Discrete-Time Systems in Banach Spaces
Revista/Volum: Acta Universitatis Apulensis 39(2014), 329-339 ISSN: 1582-5329

I.-L. Popa M. Megan T. Ceausu

DOI: https://doi.org/10.17114/j.aua.2014.39.28

Articol #4237 ianuarie 2016

On the periodicity of certain non-homogeneous complex Horadam sequences
Revista/Volum: Electronic Notes on Discrete Mathematics, 56 (2016), 7-12 ISSN: 1571-0653

O. Bagdasar I.-L. Popa

Articol #4236 ianuarie 2018

Exponential Stability in Mean Square of a Large Class of Singularly Perturbed Stochastic Linear Differential Equations
Revista/Volum: Mathematics and its Applications / Annals of AOSR, Vol. 10, No. 1/2018, 140-164 ISSN PRINT 2066 – 5997 ISSN ONLINE 2066 – 6594

V. Dragan I.-L. Popa H. Mukaidani T. Morozan

DOI: https://doi.org/10.1049/iet-cta.2015.0923

Articol #4235 ianuarie 2018

On the rations and geometric boundaries of complex Horadam sequences
Revista/Volum: Electronic Notes on Discrete Mathematics, Vol. 67, 2018, 63-70 ISSN: 1571-0653

O. Bagdasar E. Hedderwick I.-L. Popa

Articol #4234 ianuarie 2018

Remarks on Generalized Stability for Difference Equations in Banach Spaces
Revista/Volum: Electronic Notes on Discrete Mathematics 70 (2018), 77–82 ISSN: 1571-0653

I.-L. Popa L. E. Biris T. Ceausu T. Li

Articol #4233 ianuarie 2018

On the Asymptotic Structure of the Stabilizing Solution of the Riccati Equation Arising in Connection with the LQ Regulator Problem for a class of Singularly Perturbed Stochastic Systems
Revista/Volum: ROMAI J., v. 14, No. 2(2018), 67-87 ISSN: 1841-5512

V. Dragan I.-L. Popa S. Aberkane

Articol #4232 ianuarie 2018

On Uniform Exponential Trisplitting of Discrete Skew-product Semiflows
Revista/Volum: Electronic Notes in Discrete Mathematics Volume 67, June 2018, Pages 91-96 ISSN: 1571-0653

L. E. Biris T. Ceausu C. Mihit I.-L. Popa

DOI: https://doi.org/10.1016/j.endm.2018.05.015

Articol #4231 ianuarie 2020

Generalized Exponentially Stable Linear Time-Varying Discrete Behaviors
Revista/Volum: Ann. Acad. Rom. Sci. Ser. Math. Appl. Vol. 12, No. 1-2, 2020, 256-275 ISSN PRINT 2066 – 5997 ISSN ONLINE 2066 – 6594

I.-L. Popa T. Ceausu L.E. Biris T. Li A. Zada

Articol #4230 ianuarie 2022

On uniform polynomial splitting of variational nonautonomous difference equations in Banach spaces
Revista/Volum: Annals of West University of Timisoara, Mathematics and Computer Science58, 2, (2022), 22– 37 1841-3307 (Online)

L.E. Biris T. Ceausu I.-L. Popa N. Seimeanu

Articol #4229 ianuarie 2018

On uniform exponential trisplitting for cocycles of linear operators in Banach spaces
Revista/Volum: Analele Universitatii de Vest, Timisoara Seria Matematica – Informatica LVI, 2, (2018), 81– 103 1841-3307 (Online)

L.E. Biris C. L. Mihit T. Ceausu I.-L. Popa

Articol #4227 ianuarie 2023

On the stability and mean square stabilization of a class of linear stochastic systems controlled by impulses
Revista/Volum: Ann. Acad. Rom. Sci. Ser. Math. Appl. Vol. 15, No. 1-2/2023 ISSN PRINT 2066 – 5997 ISSN ONLINE 2066 – 6594

V. Dragan S. Aberkane I.-L. Popa T. Morozan

DOI: https://doi.org/10.56082/annalsarscimath.2023.1-2.45

Articol #1516 ianuarie 2015

Optimal H2 Filtering for Linear Stochastic Systems with Multiplicative White Noise Perturbations and Sampled Measurements
Revista/Volum: 2015 12th International Conference on Informatics in Control, Automation and Robotics (ICINCO) Electronic ISBN:978-9-8975-8149-6

V. Dragan S. Aberkane I.-L. Popa

Articol #1515 ianuarie 2015

Generalized Exponential Dichotomies for Evolution Operators
Revista/Volum: 10 Editions of IEEE International Symposion on Applied Computational Inteligente and Informatics, 2015, 55-58 ISBN 978-1-4799-9911-8

N. Lupa M. Megan I.-L. Popa

Articol #1514 ianuarie 2016

Generalized exponential trichotomy for difference equations
Revista/Volum: IEEE International Symposion on Applied Computational Inteligente and Informatics, 2016, 173-176 ISBN 978-1-5090-2380-6

I.L. Popa T. Ceausu

Articol #1513 ianuarie 2017

On the stabilizing solution of periodic Riccati differential equations related to a class of stochastic linear quadratic differential game
Revista/Volum: 20th IFAC World Congress, IFAC 2017, 9977-9982 ISSN 2405-8963

V. Dragan S. Aberkane I. I. Ganchev I.-L. Popa

DOI: https://doi.org/10.1016/j.ifacol.2017.08.1663

Articol #1512 ianuarie 2017

Qualitative Case Study Methodology: Automatic Design and Correction of Ceramic Colors
Revista/Volum: 21st International Conference on System Theory, Control and Computing, 2017, 704-708 ISBN 978-1-5386-3842-2 ISSN 2372-1618

O. Bagdasar A. Birlutiu M. Chen I.-L. Popa

Articol #143 ianuarie 2018

Optimal filtering of a signal generated by a system modeled by Ito differential equations with periodic coefficients: the dichotomic case
Revista/Volum: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE Volume 61 Issue 4 Page 347-359 ISSN 1220-3874 eISSN 2065-0264

V. Dragan I.-L. Popa S. Aberkane

Articol #142 ianuarie 2020

Characterizations of Generalized Exponential Trichotomies for Linear Discrete-time Systems
Revista/Volum: Analele Stiintifice ale Universitatii Ovidius Constanta-Seria Matematica, Vol. 27(2), 2019, 153-166 ISSN 1224-1784 eISSN 1844-0835

I.-L. Popa T. Ceausu O. Bagdasar Ravi P. Agarwal

DOI: https://doi.org/10.2478/auom-2019-0025

Articol #141 ianuarie 2021

A Spectral Criterion for the Existence of the Stabilizing Solution of a Class of Riccati Type Differential Equations with Periodic Coeffcients
Revista/Volum: Studia Universitatis Babes-Bolyai, Mathematica 66 (1), 159-177 ISSN 0252-1938 eISSN 2065-961X

V. Dragan I.-L. Popa

DOI: https://doi.org/10.24193/subbmath.2021.1.14

Articol #140 ianuarie 2021

Etermal On a Riemann-Liouville type implicit coupled system via generalized boundary conditions
Revista/Volum: Mathematics 9 (11), 1205, 2021 eISSN 2227-7390

U. Riaz A. Zada Z. Ali I.-L. Popa S. Rezapour, S.

DOI: https://doi.org/10.3390/math9111205

Articol #137 ianuarie 2022

Lyapunov Conditions for One-Sided Discrete-Time Random Dynamical Systems
Revista/Volum: Carpathian Journal of Mathematics 38 (3), 777-788, 2022 ISSN 1584-2851 eISSN 1843-4401

LE Biris T Ceausu I.L. Popa N.M. Seimeanu

DOI: https://doi.org/10.37193/CJM.2022.03.21

Articol #22 ianuarie 2020

Ulam–Hyers stability of impulsive integrodifferential equations with Riemann–Liouville boundary conditions
Revista/Volum: Advances in Difference Equations 2020 (1), 1-50 , ISSN: 1687-1847 1687-1847

A Zada J Alzabut H Waheed I.-L. Popa

DOI: https://doi.org/10.1186/s13662-020-2534-1

Articol #21 ianuarie 2020

Lyapunov Functions for Random Semi-Dynamical Systems in Terms of Tempered Exponential Splitting
Revista/Volum: Mathematical Methods in the Applied Sciences, DOI: 10.1002/mma.6769, 2020 0170-4214

I.-L. Popa

DOI: https://doi.org/10.1002/mma.6769

Articol #20 ianuarie 2020

On the Closed Loop Nash Equilibrium Strategy for a Class of Sampled Data Stochastic Linear Quadratic Differential Games
Revista/Volum: CHAOS SOLITONS & FRACTALS 0960-0779

V. Dragan I. G. Ivanov I.-L. Popa

DOI: https://doi.org/10.1016/j.chaos.2020.109877

Articol #19 ianuarie 2019

Stochastic Linear Quadratic Differential Games in a State Feedback Setting with Sampled Measurements
Revista/Volum: Systems & Control Letters 134(2019), 104563 0167-6911

V. Dragan I. G. Ivanov I.-L. Popa

DOI: https://doi.org/10.1016/j.sysconle.2019.104563

Articol #18 ianuarie 2019

Uniform Exponential Trisplitting - A New Criterion for Discrete Skew-Product Semiflows
Revista/Volum: Electronic Journal of Qualitative Theory of Differential Equations 70 (2019), 1-22 1417-3875

L. E. Biris T. Ceausu C. L. Mihit I.-L. Popa

DOI: https://doi.org/10.14232/ejqtde.2018.1.70

Articol #8 ianuarie 2018

Optimal filtering for a class of Itô stochastic systems: The dichotomic case
Revista/Volum: Automatica 90, 47-53, 2018 0005-1098

V. Dragan S. Aberkane I.-L. Popa

DOI: https://doi.org/10.1016/j.automatica.2017.12.025

Articol #7 ianuarie 2017

Exponential splitting for nonautonomous linear discrete-time systems in Banach spaces
Revista/Volum: Journal of Computational and Applied Mathematics, 312 (2017), 181-191 0377-0427

M. Megan I.-L. Popa

DOI: https://doi.org/10.1016/j.cam.2016.03.036

Articol #6 ianuarie 2017

Characterizations of the (h,k,mu, u)-Trichotomy for Linear Time-Varying Systems
Revista/Volum: Mathematical Methods in the Applied Sciences 40 (2017), 6172-6177 0170-4214

I.-L. Popa T. Ceausu M. Megan

DOI: https://doi.org/10.1002/mma.3907

Articol #5 ianuarie 2015

Optimal H_2 Filtering for Periodic Linear Stochastic Systems with Multiplicative White Noise Perturbations and Sampled Measurements
Revista/Volum: Journal of The Franklin Institute, Volume 352, Issue 12, December 2015, Pages 5985–6010 0016-0032

V. Dragan S. Aberkane I.-L. Popa

DOI: https://doi.org/10.1016/j.jfranklin.2015.10.010

Articol #4 ianuarie 2010

On weak exponential stability of evolution operators in Banach spaces
Revista/Volum: Nonlinear Analysis - Theory methods & Applications 73(2010), 2445-2450 0362-546X

N. Lupa M. Megan I.L. Popa

DOI: https://doi.org/10.1016/j.na.2010.06.017

Articol #3 ianuarie 2012

Exponential dichotomies for linear discrete – time systems in Banach spaces
Revista/Volum: Applicable Analysis and Discrete Mathematics, 6 (2012), 140 – 155 1452-8630

I. L. Popa M. Megan T. Ceausu

DOI: https://doi.org/10.2298/AADM120319008P

Articol #2 ianuarie 2012

On exponential stability for linear discrete – time systems in Banach spaces
Revista/Volum: Computers & Mathematics with Applications, 63 (2012), 1497 – 1503 0898-1221

I. L. Popa T. Ceausu M. Megan

DOI: https://doi.org/10.1016/j.camwa.2012.01.027

Articol #1 ianuarie 2014

Nonuniform power instability and Lyapunov sequences
Revista/Volum: Applied Mathematics and Computation, 247 (2014), 969-975 0096-3003

I. L. Popa T. Ceau?u M. Megan

DOI: https://doi.org/10.1016/j.amc.2014.09.051