Edit Profile (opens in new tab) Andrei, Neculai Co-Author Distance Author ID: andrei.neculai Published as: Andrei, Neculai; Andrei, N. Homepage: https://camo.ici.ro/neculai/nandrei.htm External Links: MGP · Google Scholar · dblp Documents Indexed: 54 Publications since 1979, including 9 Books 1 Contribution as Editor Co-Authors: 5 Co-Authors with 3 Joint Publications 159 Co-Co-Authors all top 5 Co-Authors 51 single-authored 1 Bărbulescu, Mircea 1 Bissi, Agnese 1 Cardy, John L. 1 Dorey, Patrick E. 1 Drukker, Nadav 1 Erdmenger, Johanna 1 Friedan, Daniel Harry 1 Fursaev, Dmitri V. 1 Konechny, Anatoly 1 Kristjansen, Charlotte F. 1 Makabe, Isao 1 O’Bannon, Andy 1 Parini, Robert 1 Rasturnoiu, Constantin 1 Robinson, Brandon 1 Schmidt-Colinet, Cornelius 1 Schomerus, Volker 1 Schweigert, Christoph 1 Watts, Gerard M. T. 1 Xiao, Yunhai 1 Yu, Gaohang 1 Yuan, Gonglin 1 Zhang, Li all top 5 Serials 9 Numerical Algorithms 6 Journal of Computational and Applied Mathematics 4 Journal of Optimization Theory and Applications 4 Optimization 4 Optimization Methods & Software 4 Springer Optimization and Its Applications 2 Applied Mathematics and Computation 2 Calcolo 2 Applied Mathematics Letters 2 Advanced Modeling and Optimization 1 Numerical Functional Analysis and Optimization 1 Annals of Operations Research 1 European Journal of Operational Research 1 Computational Optimization and Applications 1 Computational and Applied Mathematics 1 Abstract and Applied Analysis 1 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 1 Interdisciplinary Systems Research 1 Journal of Physics A: Mathematical and Theoretical 1 SpringerBriefs in Optimization all top 5 Fields 49 Operations research, mathematical programming (90-XX) 32 Numerical analysis (65-XX) 10 Calculus of variations and optimal control; optimization (49-XX) 2 Systems theory; control (93-XX) 1 General and overarching topics; collections (00-XX) 1 Combinatorics (05-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Real functions (26-XX) 1 Statistics (62-XX) 1 Quantum theory (81-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 45 Publications have been cited 962 times in 504 Documents Cited by ▼ Year ▼ An unconstrained optimization test functions collection. Zbl 1161.90486 Andrei, Neculai 238 2008 Scaled conjugate gradient algorithms for unconstrained optimization. Zbl 1168.90608 Andrei, Neculai 57 2007 Open problems in nonlinear conjugate gradient algorithms for unconstrained optimization. Zbl 1225.49030 Andrei, Neculai 54 2011 A simple three-term conjugate gradient algorithm for unconstrained optimization. Zbl 1258.65056 Andrei, Neculai 43 2013 Another hybrid conjugate gradient algorithm for unconstrained optimization. Zbl 1141.65041 Andrei, Neculai 41 2008 Scaled memoryless BFGS preconditioned conjugate gradient algorithm for unconstrained optimization. Zbl 1270.90068 Andrei, Neculai 37 2007 A scaled BFGS preconditioned conjugate gradient algorithm for unconstrained optimization. Zbl 1116.90114 Andrei, Neculai 36 2007 Accelerated scaled memoryless BFGS preconditioned conjugate gradient algorithm for unconstrained optimization. Zbl 1189.90151 Andrei, Neculai 36 2010 An acceleration of gradient descent algorithm with backtracking for unconstrained optimization. Zbl 1101.65058 Andrei, Neculai 35 2006 Hybrid conjugate gradient algorithm for unconstrained optimization. Zbl 1168.90017 Andrei, N. 34 2009 On three-term conjugate gradient algorithms for unconstrained optimization. Zbl 1274.90372 Andrei, Neculai 32 2013 Acceleration of conjugate gradient algorithms for unconstrained optimization. Zbl 1172.65027 Andrei, Neculai 27 2009 Nonlinear conjugate gradient methods for unconstrained optimization. Zbl 1514.90250 Andrei, Neculai 23 2020 A modified Polak-Ribière-Polyak conjugate gradient algorithm for unconstrained optimization. Zbl 1233.90255 Andrei, Neculai 21 2011 Accelerated hybrid conjugate gradient algorithm with modified secant condition for unconstrained optimization. Zbl 1192.65074 Andrei, Neculai 20 2010 An accelerated subspace minimization three-term conjugate gradient algorithm for unconstrained optimization. Zbl 1301.65041 Andrei, Neculai 20 2014 Accelerated adaptive Perry conjugate gradient algorithms based on the self-scaling memoryless BFGS update. Zbl 1365.65158 Andrei, Neculai 18 2017 A Dai-Yuan conjugate gradient algorithm with sufficient descent and conjugacy conditions for unconstrained optimization. Zbl 1165.90683 Andrei, Neculai 17 2008 A Dai-Liao conjugate gradient algorithm with clustering of eigenvalues. Zbl 06860411 Andrei, Neculai 17 2018 An adaptive conjugate gradient algorithm for large-scale unconstrained optimization. Zbl 1321.90124 Andrei, Neculai 17 2016 A new three-term conjugate gradient algorithm for unconstrained optimization. Zbl 1321.65092 Andrei, Neculai 16 2015 Boundary and defect CFT: open problems and applications. Zbl 1519.81440 Andrei, N.; Bissi, A.; Buican, M.; Cardy, J.; Dorey, P.; Drukker, N.; Erdmenger, J.; Friedan, D.; Fursaev, D.; Konechny, A.; Kristjansen, C.; Makabe, I.; Nakayama, Y.; O’Bannon, A.; Parini, R.; Robinson, B.; Ryu, S.; Schmidt-Colinet, C.; Schomerus, V.; Schweigert, C.; Watts, G. M. T. 15 2020 Another conjugate gradient algorithm with guaranteed descent and conjugacy conditions for large-scale unconstrained optimization. Zbl 1275.90090 Andrei, Neculai 14 2013 New accelerated conjugate gradient algorithms as a modification of Dai-Yuan’s computational scheme for unconstrained optimization. Zbl 1407.65060 Andrei, Neculai 14 2010 A diagonal quasi-Newton updating method for unconstrained optimization. Zbl 1416.49025 Andrei, Neculai 9 2019 A double parameter scaled BFGS method for unconstrained optimization. Zbl 1422.65084 Andrei, Neculai 8 2018 An adaptive scaled BFGS method for unconstrained optimization. Zbl 1383.65059 Andrei, Neculai 8 2018 A scaled nonlinear conjugate gradient algorithm for unconstrained optimization. Zbl 1338.90457 Andrei, Neculai 8 2008 Accelerated conjugate gradient algorithm with finite difference Hessian/vector product approximation for unconstrained optimization. Zbl 1170.65046 Andrei, Neculai 7 2009 Eigenvalues versus singular values study in conjugate gradient algorithms for large-scale unconstrained optimization. Zbl 1368.49057 Andrei, Neculai 7 2017 Convex functions. Zbl 1157.90499 Andrei, Neculai 7 2007 Sparse systems. Digraph approach of large-scale linear systems theory. Zbl 0579.93004 Andrei, Neculai 6 1985 A diagonal quasi-Newton updating method based on minimizing the measure function of Byrd and Nocedal for unconstrained optimization. Zbl 1402.65049 Andrei, Neculai 6 2018 Continuous nonlinear optimization for engineering applications in GAMS technology. Zbl 1395.90001 Andrei, Neculai 5 2017 Another nonlinear conjugate gradient algorithm for unconstrained optimization. Zbl 1154.90586 Andrei, Neculai 4 2009 Nonlinear optimization applications using the GAMS technology. Zbl 1401.90001 Andrei, Neculai 4 2013 Diagonal approximation of the Hessian by finite differences for unconstrained optimization. Zbl 1441.49029 Andrei, Neculai 4 2020 A double-parameter scaling Broyden-Fletcher-Goldfarb-Shanno method based on minimizing the measure function of Byrd and Nocedal for unconstrained optimization. Zbl 1398.49025 Andrei, Neculai 3 2018 A double parameter self-scaling memoryless BFGS method for unconstrained optimization. Zbl 1445.90101 Andrei, Neculai 2 2020 A new diagonal quasi-Newton updating method with scaled forward finite differences directional derivative for unconstrained optimization. Zbl 1417.49037 Andrei, Neculai 2 2019 Bandwidth of sparse matrices. Zbl 0451.65028 Andrei, Neculai; Rasturnoiu, Constantin 1 1979 An accelerated conjugate gradient algorithm with guaranteed descent and conjugacy conditions for unconstrained optimization. Zbl 1253.49017 Andrei, Neculai 1 2012 Modern numerical nonlinear optimization. Zbl 1505.90003 Andrei, Neculai 1 2022 A new accelerated diagonal quasi-Newton updating method with scaled forward finite differences directional derivative for unconstrained optimization. Zbl 1460.90204 Andrei, Neculai 1 2021 New conjugate gradient algorithms based on self-scaling memoryless Broyden-Fletcher-Goldfarb-Shanno method. Zbl 1445.90100 Andrei, Neculai 1 2020 Modern numerical nonlinear optimization. Zbl 1505.90003 Andrei, Neculai 1 2022 A new accelerated diagonal quasi-Newton updating method with scaled forward finite differences directional derivative for unconstrained optimization. Zbl 1460.90204 Andrei, Neculai 1 2021 Nonlinear conjugate gradient methods for unconstrained optimization. Zbl 1514.90250 Andrei, Neculai 23 2020 Boundary and defect CFT: open problems and applications. Zbl 1519.81440 Andrei, N.; Bissi, A.; Buican, M.; Cardy, J.; Dorey, P.; Drukker, N.; Erdmenger, J.; Friedan, D.; Fursaev, D.; Konechny, A.; Kristjansen, C.; Makabe, I.; Nakayama, Y.; O’Bannon, A.; Parini, R.; Robinson, B.; Ryu, S.; Schmidt-Colinet, C.; Schomerus, V.; Schweigert, C.; Watts, G. M. T. 15 2020 Diagonal approximation of the Hessian by finite differences for unconstrained optimization. Zbl 1441.49029 Andrei, Neculai 4 2020 A double parameter self-scaling memoryless BFGS method for unconstrained optimization. Zbl 1445.90101 Andrei, Neculai 2 2020 New conjugate gradient algorithms based on self-scaling memoryless Broyden-Fletcher-Goldfarb-Shanno method. Zbl 1445.90100 Andrei, Neculai 1 2020 A diagonal quasi-Newton updating method for unconstrained optimization. Zbl 1416.49025 Andrei, Neculai 9 2019 A new diagonal quasi-Newton updating method with scaled forward finite differences directional derivative for unconstrained optimization. Zbl 1417.49037 Andrei, Neculai 2 2019 A Dai-Liao conjugate gradient algorithm with clustering of eigenvalues. Zbl 06860411 Andrei, Neculai 17 2018 A double parameter scaled BFGS method for unconstrained optimization. Zbl 1422.65084 Andrei, Neculai 8 2018 An adaptive scaled BFGS method for unconstrained optimization. Zbl 1383.65059 Andrei, Neculai 8 2018 A diagonal quasi-Newton updating method based on minimizing the measure function of Byrd and Nocedal for unconstrained optimization. Zbl 1402.65049 Andrei, Neculai 6 2018 A double-parameter scaling Broyden-Fletcher-Goldfarb-Shanno method based on minimizing the measure function of Byrd and Nocedal for unconstrained optimization. Zbl 1398.49025 Andrei, Neculai 3 2018 Accelerated adaptive Perry conjugate gradient algorithms based on the self-scaling memoryless BFGS update. Zbl 1365.65158 Andrei, Neculai 18 2017 Eigenvalues versus singular values study in conjugate gradient algorithms for large-scale unconstrained optimization. Zbl 1368.49057 Andrei, Neculai 7 2017 Continuous nonlinear optimization for engineering applications in GAMS technology. Zbl 1395.90001 Andrei, Neculai 5 2017 An adaptive conjugate gradient algorithm for large-scale unconstrained optimization. Zbl 1321.90124 Andrei, Neculai 17 2016 A new three-term conjugate gradient algorithm for unconstrained optimization. Zbl 1321.65092 Andrei, Neculai 16 2015 An accelerated subspace minimization three-term conjugate gradient algorithm for unconstrained optimization. Zbl 1301.65041 Andrei, Neculai 20 2014 A simple three-term conjugate gradient algorithm for unconstrained optimization. Zbl 1258.65056 Andrei, Neculai 43 2013 On three-term conjugate gradient algorithms for unconstrained optimization. Zbl 1274.90372 Andrei, Neculai 32 2013 Another conjugate gradient algorithm with guaranteed descent and conjugacy conditions for large-scale unconstrained optimization. Zbl 1275.90090 Andrei, Neculai 14 2013 Nonlinear optimization applications using the GAMS technology. Zbl 1401.90001 Andrei, Neculai 4 2013 An accelerated conjugate gradient algorithm with guaranteed descent and conjugacy conditions for unconstrained optimization. Zbl 1253.49017 Andrei, Neculai 1 2012 Open problems in nonlinear conjugate gradient algorithms for unconstrained optimization. Zbl 1225.49030 Andrei, Neculai 54 2011 A modified Polak-Ribière-Polyak conjugate gradient algorithm for unconstrained optimization. Zbl 1233.90255 Andrei, Neculai 21 2011 Accelerated scaled memoryless BFGS preconditioned conjugate gradient algorithm for unconstrained optimization. Zbl 1189.90151 Andrei, Neculai 36 2010 Accelerated hybrid conjugate gradient algorithm with modified secant condition for unconstrained optimization. Zbl 1192.65074 Andrei, Neculai 20 2010 New accelerated conjugate gradient algorithms as a modification of Dai-Yuan’s computational scheme for unconstrained optimization. Zbl 1407.65060 Andrei, Neculai 14 2010 Hybrid conjugate gradient algorithm for unconstrained optimization. Zbl 1168.90017 Andrei, N. 34 2009 Acceleration of conjugate gradient algorithms for unconstrained optimization. Zbl 1172.65027 Andrei, Neculai 27 2009 Accelerated conjugate gradient algorithm with finite difference Hessian/vector product approximation for unconstrained optimization. Zbl 1170.65046 Andrei, Neculai 7 2009 Another nonlinear conjugate gradient algorithm for unconstrained optimization. Zbl 1154.90586 Andrei, Neculai 4 2009 An unconstrained optimization test functions collection. Zbl 1161.90486 Andrei, Neculai 238 2008 Another hybrid conjugate gradient algorithm for unconstrained optimization. Zbl 1141.65041 Andrei, Neculai 41 2008 A Dai-Yuan conjugate gradient algorithm with sufficient descent and conjugacy conditions for unconstrained optimization. Zbl 1165.90683 Andrei, Neculai 17 2008 A scaled nonlinear conjugate gradient algorithm for unconstrained optimization. Zbl 1338.90457 Andrei, Neculai 8 2008 Scaled conjugate gradient algorithms for unconstrained optimization. Zbl 1168.90608 Andrei, Neculai 57 2007 Scaled memoryless BFGS preconditioned conjugate gradient algorithm for unconstrained optimization. Zbl 1270.90068 Andrei, Neculai 37 2007 A scaled BFGS preconditioned conjugate gradient algorithm for unconstrained optimization. Zbl 1116.90114 Andrei, Neculai 36 2007 Convex functions. Zbl 1157.90499 Andrei, Neculai 7 2007 An acceleration of gradient descent algorithm with backtracking for unconstrained optimization. Zbl 1101.65058 Andrei, Neculai 35 2006 Sparse systems. Digraph approach of large-scale linear systems theory. Zbl 0579.93004 Andrei, Neculai 6 1985 Bandwidth of sparse matrices. Zbl 0451.65028 Andrei, Neculai; Rasturnoiu, Constantin 1 1979 all cited Publications top 5 cited Publications all top 5 Cited by 596 Authors 45 Babaie-Kafaki, Saman 32 Andrei, Neculai 20 Liu, Zexian 19 Leong, Wah June 19 Yuan, Gonglin 18 Dong, Xiaoliang 17 Aminifard, Zohre 16 Ghanbari, Reza 12 Dai, Zhifeng 12 Jiang, Xianzhen 12 Stanimirović, Predrag S. 11 Amini, Keyvan 11 Jian, Jinbao 11 Kumam, Poom 10 Ou, Yigui 10 Waziri, Mohammed Yusuf 9 Liu, Hongwei 9 Mamat, Mustafa Bin 8 Bala Abubakar, Auwal 8 Petrović, Milena J. 8 Zhu, Detong 7 Wan, Zhong 7 Wang, Xiaoliang 7 Yang, Yueting 6 Alhawarat, Ahmad 6 Awwal, Aliyu Muhammed 6 Biglari, Fahimeh 6 Đorđević, Snežana S. 6 Faramarzi, Parvaneh 6 Farid, Mahboubeh 6 Halilu, Abubakar Sani 6 He, Yubo 6 Ivanov, Branislav 6 Li, Xiangli 6 Liu, Pengjie 6 Peyghami, Mohammad Reza 6 Sabi’u, Jamilu 6 Salleh, Zabidin 6 Sheng, Zhou 5 Ahmed, Kabiru 5 Ahookhosh, Masoud 5 Ashrafi, Ali Reza 5 Chakraborty, Suvra Kanti 5 Hassan, Malik Abu 5 Ibrahim, Abdulkarim Hassan 5 Liu, Jinkui 5 Malik, Maulana 5 Panda, Geetanjali 5 Rivaie, Mohd 5 Sellami, Badreddine 5 Sun, Wumei 5 Wen, Fenghua 5 Yao, Shengwei 5 Zhu, Zhibin 4 Ahmed, Huda Issam 4 Al-Bayati, Abbas Y. 4 Belloufi, Mohammed 4 Bojari, S. 4 Cao, Mingyuan 4 Eslahchi, Mohammad Reza 4 Hamed, Eman T. 4 Kamandi, Ahmad 4 Li, Donghui 4 Li, Min 4 Lukšan, Ladislav 4 Mahdavi-Amiri, Nezam 4 Pham, Hongtruong 4 Vlček, Jan 4 Yin, Jianghua 4 Zhang, Li 4 Zhang, Mengxiang 4 Zhou, Yingjie 3 Ahmadvand, Mohammad 3 Chen, Chuei Yee 3 Chen, Xiaohong 3 Deng, Songhai 3 Esmaeilbeigi, Mohsen 3 Ghosh, Debdas 3 Han, Deren 3 Hu, Wujie 3 Kaelo, Professor 3 Khoshsimaye-Bargard, Maryam 3 Kontrec, Nataša Z. 3 Li, Shengjie 3 Li, Tingting 3 Li, Wenyu 3 Li, Xiangrong 3 Liao, Wei 3 Liu, Dongyi 3 Lu, Yunlong 3 Miladinović, Marko B. 3 Milovanović, Gradimir V. 3 Mirhoseini, Nasrin 3 Mohammad, Hassan 3 Mtagulwa, Peter 3 Ni, Qin 3 Rahpeymaii, Farzad 3 Reinschke, Kurt J. 3 Sim, Hong Seng 3 Sun, Zhongbo ...and 496 more Authors all top 5 Cited in 108 Serials 55 Numerical Algorithms 36 Journal of Computational and Applied Mathematics 25 Applied Mathematics and Computation 25 Journal of Optimization Theory and Applications 22 Journal of Applied Mathematics and Computing 21 Optimization Methods & Software 17 Computational and Applied Mathematics 17 Optimization Letters 16 Computational Optimization and Applications 16 Mathematical Problems in Engineering 13 International Journal of Computer Mathematics 12 Journal of Inequalities and Applications 11 Optimization 11 Journal of Industrial and Management Optimization 9 Applied Numerical Mathematics 8 Computers & Mathematics with Applications 7 Calcolo 7 RAIRO. Operations Research 7 Journal of Applied Mathematics 6 4OR 5 Numerical Functional Analysis and Optimization 5 Journal of Scientific Computing 5 Applied Mathematical Modelling 5 Abstract and Applied Analysis 5 Journal of Mathematical Modeling 4 International Journal of Mathematics and Mathematical Sciences 4 Mathematics and Computers in Simulation 4 Linear Algebra and its Applications 4 Filomat 4 Numerical Algebra, Control and Optimization 3 Mathematical Methods in the Applied Sciences 3 Applied Mathematics Letters 3 European Journal of Operational Research 3 SIAM Journal on Optimization 3 Acta Mathematica Scientia. Series A. (Chinese Edition) 3 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 3 Mediterranean Journal of Mathematics 3 Asian-European Journal of Mathematics 3 Journal of the Operations Research Society of China 3 SN Operations Research Forum 2 Asia-Pacific Journal of Operational Research 2 Journal of Global Optimization 2 Discrete Dynamics in Nature and Society 2 The ANZIAM Journal 2 Mathematical Modelling and Analysis 2 Journal of Systems Science and Complexity 2 Acta Mathematica Scientia. Series B. (English Edition) 2 Thai Journal of Mathematics 2 S\(\vec{\text{e}}\)MA Journal 2 Journal of Mathematics 2 AIMS Mathematics 1 Bulletin of the Australian Mathematical Society 1 Computers and Fluids 1 Computer Methods in Applied Mechanics and Engineering 1 International Journal of Systems Science 1 Journal of Computational Physics 1 Journal of the Franklin Institute 1 Numerische Mathematik 1 Tamkang Journal of Mathematics 1 Journal of Information & Optimization Sciences 1 Operations Research Letters 1 Circuits, Systems, and Signal Processing 1 Bulletin of the Iranian Mathematical Society 1 Journal of the Nigerian Mathematical Society 1 Facta Universitatis. Series Mathematics and Informatics 1 Computers & Operations Research 1 International Journal of Approximate Reasoning 1 Journal of the Ramanujan Mathematical Society 1 Annals of Operations Research 1 Applications of Mathematics 1 Communications in Statistics. Theory and Methods 1 Cybernetics and Systems Analysis 1 Applied Mathematics. Series B (English Edition) 1 International Journal of Numerical Methods for Heat & Fluid Flow 1 Advances in Computational Mathematics 1 Buletinul Academiei de Științe a Republicii Moldova. Matematica 1 Complexity 1 Journal of Vibration and Control 1 Vychislitel’nye Tekhnologii 1 Taiwanese Journal of Mathematics 1 Soft Computing 1 Journal of Interdisciplinary Mathematics 1 Optimization and Engineering 1 Nonlinear Functional Analysis and Applications 1 Iranian Journal of Science and Technology. Transaction A: Science 1 Boletim da Sociedade Paranaense de Matemática. Terceira Série 1 International Journal of Computational Methods 1 Inverse Problems in Science and Engineering 1 Frontiers of Mathematics in China 1 São Paulo Journal of Mathematical Sciences 1 Advances in Numerical Analysis 1 Afrika Matematika 1 Statistics and Computing 1 Croatian Operational Research Review (CRORR) 1 Journal of Mathematical Extension 1 Iranian Journal of Mathematical Sciences and Informatics 1 Arabian Journal of Mathematics 1 Mathematical Sciences 1 East Asian Journal on Applied Mathematics 1 Mathematics ...and 8 more Serials all top 5 Cited in 24 Fields 449 Operations research, mathematical programming (90-XX) 336 Numerical analysis (65-XX) 66 Calculus of variations and optimal control; optimization (49-XX) 23 Information and communication theory, circuits (94-XX) 14 Systems theory; control (93-XX) 8 Computer science (68-XX) 6 Linear and multilinear algebra; matrix theory (15-XX) 6 Statistics (62-XX) 5 Combinatorics (05-XX) 4 Partial differential equations (35-XX) 3 Classical thermodynamics, heat transfer (80-XX) 3 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 2 Ordinary differential equations (34-XX) 2 Fluid mechanics (76-XX) 1 Group theory and generalizations (20-XX) 1 Difference and functional equations (39-XX) 1 Approximations and expansions (41-XX) 1 Operator theory (47-XX) 1 Differential geometry (53-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Mechanics of particles and systems (70-XX) 1 Mechanics of deformable solids (74-XX) 1 Optics, electromagnetic theory (78-XX) 1 Statistical mechanics, structure of matter (82-XX) Citations by Year