Studii și Cercetări Științifice. Seria: Matematică Short Title: Stud. Cercet. Științ., Ser. Mat., Univ. Bacău Publisher: Universitatea din Bacău, Facultatea de Științe, Bacău ISSN: 1224-2519 Online: http://pubs.ub.ro/scssm/ Successor: Scientific Studies and Research. Series Mathematics and Informatics Comments: Journal; No longer indexed; This journal is available open access. Documents Indexed: 344 Publications (1994–2008) all top 5 Latest Issues 18 (2008) 17 (2007) 16, Suppl. (2006) 16 (2006) 15 (2005) 14 (2004) 13 (2003) 12 (2002) 11 (2001) 10 (2000) 9 (1999) 8 (1998) 7 (1997) 5 (1997) 6 (1996) 5 (1995) 4 (1994) all top 5 Authors 27 Popa, Valeriu 16 Blănuţă, Victor 14 Nimineţ, Valer 14 Postolică, Vasile 13 Mocanu, Marcelina 11 Gîrţu, Manuela 9 Chugh, Renu 9 Fisher, Brian 9 Jafari, Saeid 9 Noiri, Takashi 8 Berceanu, Cornel 8 Sandovici, Adrian 8 Thakur, Samajh Singh 7 Kumar, Sanjay 7 Nechita, Elena 6 Popa, Dan 5 Brescan, Mihai 5 Cătuneanu, Irina 5 Namdeo, R. K. 5 Neagu, Gheorghe 5 Pathak, Hemant Kumar 5 Popovici, Constantin I. 4 Bîrsan, Temistocle 4 Muraru, Carmen Violeta 4 Scarelli, Antonino 4 Smarandache, Florentin Gh. 4 Turkoglu, Duran 4 Yawata, Makoto 3 Crişan, Gloria-Cerasela 3 Cueva, Miguel Caldas 3 Ekici, Erdal 3 Iurea, Vasile 3 Jain, Rakesh Kumar 3 Mukherjee, Manabendra Nath 3 Negoescu, Nicoleta 3 Nimineţ, Valter 3 Oprea, Mihaela M. 3 Oprea, Miron 3 Petcu, Alexandru 3 Rathi, Savita 3 Singh, Davinder 3 Talmaciu, Mihai 3 Tapi, Uttam D. 3 Telci, Mustafa 3 Vats, Ramesh Kumar 2 Aliouche, Abdelkrim 2 Anastasiei, Mihai 2 Bhattacharya, Sukanto 2 Bhattacharyya, Anjana 2 Boskoff, Wladimir-Georges 2 Burdujan, Ilie 2 Chourasia, Vijendra K. 2 Corduneanu, Adrian 2 Costara, Constantin 2 Costinescu, Olga 2 Croitoru, Cornelius 2 Ganguly, Ashok 2 Gîrţu, Valentin 2 Gündoğan, Halit 2 Jain, Sarika 2 Khodabakhshi, Goodarz 2 Khoshnevisan, Mohammad 2 Kohli, Jogendra K. 2 Madharia, B. 2 Mirică, Ion 2 Moshokoa, Seithuti Philemon 2 Nicolaescu, Brânduşa 2 Patriciu, Alina-Mihaela 2 Patrut, Bogdan 2 Philip, Annamma 2 Popescu, Liviu 2 Puiu, Gabriel 2 Rathore, G. P. S. 2 Saddeek, Ali Mohamed 2 Spătaru, Cătălina 2 Thakur, Balwant Singh 2 Uǧurlu, Hasan Hüseyin 2 Voisei, Mircea Dan 1 Aamri, Mohamed 1 Abd-Ellah, Hambdy N. 1 Abdel-All, Nassar Hassan 1 Adrian, Iulian 1 Agratini, Octavian 1 Al-Sirehy, Fatma S. 1 Alecu, Aurel M. 1 Alexe, Sorin 1 Andrei, Anca 1 Anisca, Razvan 1 Antohe, Stefan 1 Ardeleanu, Elena-Roxana 1 Arya, Chaman Prakash 1 Bacuta, Constantin 1 Bagewadi, Channabasappa Shanthappa 1 Bakry, Mona S. 1 Balta, Marian 1 Banerjee, Amitabh 1 Baroni, Marian Alexandru 1 Baroni, Mihaela Carmen 1 Bassou, Abdelhafid 1 Bennani, Samia ...and 148 more Authors all top 5 Fields 126 General topology (54-XX) 60 Differential geometry (53-XX) 34 Operator theory (47-XX) 24 Operations research, mathematical programming (90-XX) 22 Computer science (68-XX) 14 Functional analysis (46-XX) 11 Combinatorics (05-XX) 11 Numerical analysis (65-XX) 9 Functions of a complex variable (30-XX) 9 Ordinary differential equations (34-XX) 9 Partial differential equations (35-XX) 7 Approximations and expansions (41-XX) 7 Calculus of variations and optimal control; optimization (49-XX) 7 Mechanics of particles and systems (70-XX) 5 Mathematical logic and foundations (03-XX) 5 Real functions (26-XX) 5 Global analysis, analysis on manifolds (58-XX) 5 Mechanics of deformable solids (74-XX) 5 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 4 Number theory (11-XX) 4 Group theory and generalizations (20-XX) 4 Special functions (33-XX) 4 Dynamical systems and ergodic theory (37-XX) 4 Geometry (51-XX) 3 History and biography (01-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 3 Topological groups, Lie groups (22-XX) 3 Probability theory and stochastic processes (60-XX) 3 Fluid mechanics (76-XX) 2 General and overarching topics; collections (00-XX) 2 Commutative algebra (13-XX) 2 Associative rings and algebras (16-XX) 2 Potential theory (31-XX) 2 Statistics (62-XX) 2 Quantum theory (81-XX) 2 Biology and other natural sciences (92-XX) 1 Order, lattices, ordered algebraic structures (06-XX) 1 General algebraic systems (08-XX) 1 Field theory and polynomials (12-XX) 1 Category theory; homological algebra (18-XX) 1 Measure and integration (28-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Abstract harmonic analysis (43-XX) 1 Integral equations (45-XX) 1 Convex and discrete geometry (52-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Relativity and gravitational theory (83-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 43 Publications have been cited 154 times in 144 Documents Cited by ▼ Year ▼ Fixed point theorems for implicit contractive mappings. Zbl 0967.54041 Popa, Valeriu 44 1997 Absolute parallelism geometry: brief history and developments. Zbl 1061.53504 Wanas, M. I. 13 2000 Well - posedness of the fixed point problem in orbitally complete metric spaces. Zbl 1174.54384 Popa, Valeriu 13 2006 Almost contra-super-continuous functions. Zbl 1150.54320 Ekici, Erdal 5 2004 Perfectly continuous functions. Zbl 1199.54078 Kohli, J. K.; Singh, D.; Arya, Chaman Prakash 5 2008 On \(g-US\) space. Zbl 1150.54327 Caldas, M; Jafari, S. 4 2004 Extension theorems for \(k\)-monotone operators. Zbl 1055.47510 Voisei, Mircea Dan 4 1999 Quasi-Fredholm relations in Hilbert spaces. Zbl 1164.47310 Labrousse, J.-Ph.; Sandovici, A.; De Snoo, H. S. V.; Winkler, H. 4 2006 RG-closed sets in intuitionistic fuzzy topological spaces. Zbl 1164.54314 Thakur, S. S.; Chaturvedi, Rekka 4 2006 Bundles of topological groupoids. Zbl 1150.22301 Ivan, Mihai 3 2005 Common fixed point theorems for compatible and weakly compatible mappings satisfying general contractive type conditions. Zbl 1199.47216 Kohli, J. K.; Vashistha, Sachin 3 2006 A note on rarely continuous functions. Zbl 0883.54016 Jafari, Saied 3 1995 On some properties of rare continuity. Zbl 0967.54016 Jafari, Saeid 3 1997 Projective curvature tensor on a Kenmotsu manifold with respect to semi–symmetric metric connection. Zbl 1199.53069 Bagewadi, C. S.; Prakasha, D. G.; Venkatesha 3 2007 Fixed point theorems for \(T\)-orbitally complete spaces. Zbl 1052.54527 Türkoğlu, Duran; Özer, Orhan; Fisher, Brian 3 1999 Generalizations of open functions. Zbl 1125.54308 Mocanu, Marcelina 3 2003 A unified theory of weak continuity for multifunctions. Zbl 1164.54328 Noiri, Takashi; Popa, Valeriu 3 2006 A variational principle and applications for vectorial control approximation problems. Zbl 0897.90169 Tammer, Christiane 2 1994 Between regularity and complete regularity and a factorization of complete regularity. Zbl 1199.54134 Kohli, J. K.; Singh, D. 2 2007 On a subclass of preopen sets via grills. Zbl 1199.54014 Roy, B.; Mukherjee, M. N.; Ghosh, S. K. 2 2008 On Nobusawa gamma semirings. Zbl 1199.16109 Sardar, Sujit Kumar; Saha, Bibhas Chandra 2 2008 Functions with preclosed graphs. Zbl 1052.54504 Jafari, Saied; Noiri, Takashi 2 1998 Some fixed point theorems for hybrid contractions satisfying an implicit relation. Zbl 1052.54524 Popa, Valeriu; Turkoǧlu, Düran 2 1998 Mixed noneuclidean geometries. Zbl 1052.51503 Smarandache, Florentin 2 1998 Variational integrals in metric measure spaces. Zbl 1174.46323 Mocanu, Marcelina 2 2005 Quasi \(Z\)-supercontinuous and pseudo \(Z\)-supercontinuous functions. Zbl 1150.54321 Kohli, J. K. 1 2004 A general fixed point theorem for weakly \(\delta\)-compatible mappings in compact metrics spaces. Zbl 1150.54359 Popa, Valeriu 1 2004 Weakly compatible maps in fuzzy normed spaces. Zbl 1150.54351 Chugh, Renu; Rathi, Savita 1 2005 Between weak continuity and set connectedness. Zbl 1150.54324 Hohli, J. K.; Singh, D. 1 2005 Some properties of quasi-irresolute functions. Zbl 0882.54010 Popa, Valeriu 1 1995 Some properties of \(\delta\)-continuous multifunctions. Zbl 0967.54021 Popa, Valeriu 1 1996 Fixed point theorems on three complete and compact metric spaces. Zbl 1199.54199 Aliouche, A.; Fisher, Brian 1 2007 A general fixed point theorem for expansive mappings under strict implicit conditions. Zbl 1199.54242 Popa, Valeriu 1 2007 On \((\delta ,p)\)-US spaces. Zbl 1199.54097 Caldas, M.; Ekici, E.; Jafari, S.; Moshokoa, S. P. 1 2008 Common fixed point theorem in fuzzy 2-metric spaces. Zbl 1199.54225 Kumar, Sanjay 1 2008 On minimal Lipschitz extensions in metric spaces. Zbl 1199.54107 Mocanu, Marcelina 1 2008 Riemannian subspaces of generalized Riemannian spaces. Zbl 1056.53500 Minčić, Svetislav M.; Velimirović, Ljubica S. 1 1999 Common fixed point theorems for compatible mappings of type (A) satisfying an implicit relation. Zbl 1052.54520 Popa, Valeriu 1 1999 Stability of deformed osculating hyperruled surfaces. Zbl 1056.53001 Abdel All, N. H.; Abd-Ellah, H. N. 1 2000 The Lagrange spaces with \((\alpha,\beta)\)-metric. Zbl 1061.53511 Nicolaescu, Brânduşa 1 2000 Common fixed point theorem for compatible mappings of type (P) in fuzzy metric space. Zbl 1125.54317 Chugh, Renu; Rathi, Savita; Kumar, Sanjay 1 2002 On approximation of functions by positive linear operators. Zbl 1174.41334 Agratini, Octavian 1 2006 Approximation of inertial manifolds for FitzHugh-Nagumo system. Zbl 1174.35431 Nartea, Cristina 1 2006 Perfectly continuous functions. Zbl 1199.54078 Kohli, J. K.; Singh, D.; Arya, Chaman Prakash 5 2008 On a subclass of preopen sets via grills. Zbl 1199.54014 Roy, B.; Mukherjee, M. N.; Ghosh, S. K. 2 2008 On Nobusawa gamma semirings. Zbl 1199.16109 Sardar, Sujit Kumar; Saha, Bibhas Chandra 2 2008 On \((\delta ,p)\)-US spaces. Zbl 1199.54097 Caldas, M.; Ekici, E.; Jafari, S.; Moshokoa, S. P. 1 2008 Common fixed point theorem in fuzzy 2-metric spaces. Zbl 1199.54225 Kumar, Sanjay 1 2008 On minimal Lipschitz extensions in metric spaces. Zbl 1199.54107 Mocanu, Marcelina 1 2008 Projective curvature tensor on a Kenmotsu manifold with respect to semi–symmetric metric connection. Zbl 1199.53069 Bagewadi, C. S.; Prakasha, D. G.; Venkatesha 3 2007 Between regularity and complete regularity and a factorization of complete regularity. Zbl 1199.54134 Kohli, J. K.; Singh, D. 2 2007 Fixed point theorems on three complete and compact metric spaces. Zbl 1199.54199 Aliouche, A.; Fisher, Brian 1 2007 A general fixed point theorem for expansive mappings under strict implicit conditions. Zbl 1199.54242 Popa, Valeriu 1 2007 Well - posedness of the fixed point problem in orbitally complete metric spaces. Zbl 1174.54384 Popa, Valeriu 13 2006 Quasi-Fredholm relations in Hilbert spaces. Zbl 1164.47310 Labrousse, J.-Ph.; Sandovici, A.; De Snoo, H. S. V.; Winkler, H. 4 2006 RG-closed sets in intuitionistic fuzzy topological spaces. Zbl 1164.54314 Thakur, S. S.; Chaturvedi, Rekka 4 2006 Common fixed point theorems for compatible and weakly compatible mappings satisfying general contractive type conditions. Zbl 1199.47216 Kohli, J. K.; Vashistha, Sachin 3 2006 A unified theory of weak continuity for multifunctions. Zbl 1164.54328 Noiri, Takashi; Popa, Valeriu 3 2006 On approximation of functions by positive linear operators. Zbl 1174.41334 Agratini, Octavian 1 2006 Approximation of inertial manifolds for FitzHugh-Nagumo system. Zbl 1174.35431 Nartea, Cristina 1 2006 Bundles of topological groupoids. Zbl 1150.22301 Ivan, Mihai 3 2005 Variational integrals in metric measure spaces. Zbl 1174.46323 Mocanu, Marcelina 2 2005 Weakly compatible maps in fuzzy normed spaces. Zbl 1150.54351 Chugh, Renu; Rathi, Savita 1 2005 Between weak continuity and set connectedness. Zbl 1150.54324 Hohli, J. K.; Singh, D. 1 2005 Almost contra-super-continuous functions. Zbl 1150.54320 Ekici, Erdal 5 2004 On \(g-US\) space. Zbl 1150.54327 Caldas, M; Jafari, S. 4 2004 Quasi \(Z\)-supercontinuous and pseudo \(Z\)-supercontinuous functions. Zbl 1150.54321 Kohli, J. K. 1 2004 A general fixed point theorem for weakly \(\delta\)-compatible mappings in compact metrics spaces. Zbl 1150.54359 Popa, Valeriu 1 2004 Generalizations of open functions. Zbl 1125.54308 Mocanu, Marcelina 3 2003 Common fixed point theorem for compatible mappings of type (P) in fuzzy metric space. Zbl 1125.54317 Chugh, Renu; Rathi, Savita; Kumar, Sanjay 1 2002 Absolute parallelism geometry: brief history and developments. Zbl 1061.53504 Wanas, M. I. 13 2000 Stability of deformed osculating hyperruled surfaces. Zbl 1056.53001 Abdel All, N. H.; Abd-Ellah, H. N. 1 2000 The Lagrange spaces with \((\alpha,\beta)\)-metric. Zbl 1061.53511 Nicolaescu, Brânduşa 1 2000 Extension theorems for \(k\)-monotone operators. Zbl 1055.47510 Voisei, Mircea Dan 4 1999 Fixed point theorems for \(T\)-orbitally complete spaces. Zbl 1052.54527 Türkoğlu, Duran; Özer, Orhan; Fisher, Brian 3 1999 Riemannian subspaces of generalized Riemannian spaces. Zbl 1056.53500 Minčić, Svetislav M.; Velimirović, Ljubica S. 1 1999 Common fixed point theorems for compatible mappings of type (A) satisfying an implicit relation. Zbl 1052.54520 Popa, Valeriu 1 1999 Functions with preclosed graphs. Zbl 1052.54504 Jafari, Saied; Noiri, Takashi 2 1998 Some fixed point theorems for hybrid contractions satisfying an implicit relation. Zbl 1052.54524 Popa, Valeriu; Turkoǧlu, Düran 2 1998 Mixed noneuclidean geometries. Zbl 1052.51503 Smarandache, Florentin 2 1998 Fixed point theorems for implicit contractive mappings. Zbl 0967.54041 Popa, Valeriu 44 1997 On some properties of rare continuity. Zbl 0967.54016 Jafari, Saeid 3 1997 Some properties of \(\delta\)-continuous multifunctions. Zbl 0967.54021 Popa, Valeriu 1 1996 A note on rarely continuous functions. Zbl 0883.54016 Jafari, Saied 3 1995 Some properties of quasi-irresolute functions. Zbl 0882.54010 Popa, Valeriu 1 1995 A variational principle and applications for vectorial control approximation problems. Zbl 0897.90169 Tammer, Christiane 2 1994 all cited Publications top 5 cited Publications all top 5 Cited by 193 Authors 14 Popa, Valeriu 8 Patriciu, Alina-Mihaela 7 Imdad, Mohammad 7 Wanas, M. I. 6 Youssef, Nabil Labib 5 Karapınar, Erdal 5 Noiri, Takashi 4 Akkouchi, Mohamed 4 Aydi, Hassen Mohamed 4 Nashine, Hemant Kumar 4 Singh, Davinder 3 Aggarwal, Jeetendra 3 Bouhadjera, Hakima 3 Choudhury, Binayak Samadder 3 Jafari, Saeid 3 Jain, Reena 3 Kundu, Sunirmal 3 Metiya, Nikhilesh 2 Ahmadullah, Md 2 Alfaqih, Waleed Mohd. 2 Ali, Javid 2 Anza Hafsa, Omar 2 Arif, Anam 2 Badiger, Chidanand 2 Bauschke, Heinz H. 2 Boţ, Radu Ioan 2 Chauhan, Sunny 2 Ekici, Erdal 2 El Hanafy, W. 2 Garbouj, Zied 2 Gubran, Rqeeb 2 Jellali, Manel 2 Kohli, Jogendra K. 2 Mahmood, Hasan 2 Mandallena, Jean-Philippe 2 Nazam, Muhammad 2 Pandey Bajpai, Jyoti 2 Popa, Dan 2 Rajesh, Neelamegarajan 2 Solouma, Emad M. 2 Taha, Ebtsam H. 2 Thakur, Samajh Singh 2 Tiwari, Rakesh Prabhat 2 Tyagi, Brij Kishore 2 Vetro, Francesca 2 Wang, Shawn Xianfu 2 Yavari, Arash 1 Aamri, Mohamed 1 Abd-Ellah, Hambdy N. 1 Abdel-All, Nassar Hassan 1 Abdelhamid, N. E. 1 Aksoy, Ümit 1 Al-Dayel, Ibrahim 1 Al-Qubati, AbdulGawad A. Q. 1 Álvarez Seco, Teresa 1 Ammar, Samah. A. 1 Arasaiah, Arasaiah 1 Arif, Mohammad 1 Arivazhagi, C. 1 Ayadi, Mohamed Ali 1 Azzam, A. Adam 1 Babu, Gutti Venkata Ravindranadh 1 Bagewadi, Channabasappa Shanthappa 1 Baklouti, Hamadi 1 Bayhan, Sadik 1 Beg, Ismat 1 Berinde, Vasile 1 Berzig, Maher 1 Bilgili, Nurcan 1 Biswas, Jayanta 1 Boonpok, Chawalit 1 Butt, Asma Rashid 1 Chaira, Karim 1 Chakraborty, Kamalika 1 Chakraborty, Priyam 1 Chen, Lili 1 Cho, Yeol Je 1 Cotrina, John 1 Csetnek, Ernö Robert 1 Cueva, Miguel Caldas 1 de la Sen, Manuel 1 Dhavaseelan, R. 1 Duszyński, Zbigniew 1 El Haddouchi, Abdelhak 1 Elavarasan, Elangovan 1 Elsayed, Waleed A. 1 Erhan, İnci M. 1 Felhi, Abdelbasset 1 Foda, Mona M. 1 Fulga, Andreea 1 Gautam, Pragati 1 Godet-Thobie, Christiane 1 Grad, Sorin-Mihai 1 Gupta, Savita 1 Gupta, Shweta 1 Hammad, Hasanen Abuelmagd 1 Hasan, M. 1 Henkel, E.-Chr. 1 Hosseini, Boshra 1 Huang, Shuai ...and 93 more Authors all top 5 Cited in 78 Journals 9 Demonstratio Mathematica 8 Boletim da Sociedade Paranaense de Matemática. Terceira Série 6 Filomat 5 Chaos, Solitons and Fractals 4 Fasciculi Mathematici 4 Rendiconti del Circolo Matemàtico di Palermo. Serie II 4 International Journal of Geometric Methods in Modern Physics 3 Acta Mathematica Hungarica 3 Optimization 3 Annales Mathematicae Silesianae 3 Nonlinear Analysis. Modelling and Control 3 Fixed Point Theory and Applications 3 Journal of Function Spaces 2 Reports on Mathematical Physics 2 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica 2 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 2 The Journal of Geometric Analysis 2 The Journal of Analysis 2 Journal of the Egyptian Mathematical Society 2 Abstract and Applied Analysis 2 Honam Mathematical Journal 2 Mathematica Moravica 2 Acta Mathematica Sinica. English Series 2 Lobachevskii Journal of Mathematics 2 Gravitation & Cosmology 2 Cubo 2 Advances in High Energy Physics 2 Applied General Topology 2 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 2 Journal of Operators 2 Korean Journal of Mathematics 1 Journal of Mathematical Analysis and Applications 1 Journal of Mathematical Physics 1 Ukrainian Mathematical Journal 1 Acta Scientiarum Mathematicarum 1 Applied Mathematics and Computation 1 Gaṇita 1 Facta Universitatis. Series Mathematics and Informatics 1 Journal of the Ramanujan Mathematical Society 1 International Journal of Computer Mathematics 1 Journal of Nonlinear Science 1 Set-Valued Analysis 1 Turkish Journal of Mathematics 1 Bulletin des Sciences Mathématiques 1 Complexity 1 Positivity 1 Novi Sad Journal of Mathematics 1 Mathematical Methods of Operations Research 1 Journal of Inequalities and Applications 1 Acta et Commentationes Universitatis Tartuensis de Mathematica 1 Nonlinear Functional Analysis and Applications 1 Kragujevac Journal of Mathematics 1 JP Journal of Geometry and Topology 1 JP Journal of Algebra, Number Theory and Applications 1 Bulletin of the Brazilian Mathematical Society. New Series 1 Central European Journal of Mathematics 1 Journal of Intelligent and Fuzzy Systems 1 Fixed Point Theory 1 Journal of the Indonesian Mathematical Society 1 Proyecciones 1 Journal of Fixed Point Theory and Applications 1 Advances in Calculus of Variations 1 Asian-European Journal of Mathematics 1 East Asian Mathematical Journal 1 Tbilisi Mathematical Journal 1 Journal of Nonlinear Science and Applications 1 Acta Universitatis Sapientiae. Mathematica 1 Bulletin of Mathematical Analysis and Applications 1 Advances in Mathematical Physics 1 Functional Analysis, Approximation and Computation 1 Afrika Matematika 1 S\(\vec{\text{e}}\)MA Journal 1 Fuzzy Information and Engineering 1 Mathematical Sciences 1 Journal of Mathematics 1 Sahand Communications in Mathematical Analysis 1 International Journal of Applied and Computational Mathematics 1 Open Mathematics all top 5 Cited in 30 Fields 102 General topology (54-XX) 46 Operator theory (47-XX) 18 Differential geometry (53-XX) 6 Integral equations (45-XX) 5 Calculus of variations and optimal control; optimization (49-XX) 5 Relativity and gravitational theory (83-XX) 4 Mathematical logic and foundations (03-XX) 4 Operations research, mathematical programming (90-XX) 2 Algebraic geometry (14-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Associative rings and algebras (16-XX) 2 Category theory; homological algebra (18-XX) 2 Ordinary differential equations (34-XX) 2 Geometry (51-XX) 2 Algebraic topology (55-XX) 2 Numerical analysis (65-XX) 2 Mechanics of deformable solids (74-XX) 1 Combinatorics (05-XX) 1 General algebraic systems (08-XX) 1 Group theory and generalizations (20-XX) 1 Functions of a complex variable (30-XX) 1 Approximations and expansions (41-XX) 1 Functional analysis (46-XX) 1 Convex and discrete geometry (52-XX) 1 Manifolds and cell complexes (57-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Probability theory and stochastic processes (60-XX) 1 Mechanics of particles and systems (70-XX) 1 Quantum theory (81-XX) 1 Astronomy and astrophysics (85-XX) Citations by Year