Edit Profile (opens in new tab) Nastasescu, Constantin Co-Author Distance Author ID: nastasescu.constantin Published as: Năstăsescu, C.; Năstăsescu, Constantin; Nastasescu, Constantin; Nastasescu, C.; Nastasescu, Costantin; Nǎstǎsescu, C.; Nǎstǎsescu, Constantin more...less Homepage: http://fmi.unibuc.ro/ro/nastasescu_constantin/ External Links: MGP · Wikidata · dblp · IdRef Documents Indexed: 176 Publications since 1965, including 10 Books and 2 Additional arXiv Preprints Reviewing Activity: 435 Reviews Co-Authors: 54 Co-Authors with 138 Joint Publications 718 Co-Co-Authors all top 5 Co-Authors 38 single-authored 36 Dăscălescu, Sorin 26 Torrecillas Jover, Blas 26 van Oystaeyen, Freddy 13 Năstăsescu, Laura 12 Albu, Toma 10 Castaño Iglesias, Florencio 9 Raianu, Şerban 7 Gómez Torrecillas, José 6 Dăuş, Leonard 5 Gómez Pardo, José Luis 4 Menini, Claudia 4 Popescu, Nicolae 3 Chifan, N. 3 Iovanov, Miodrag-Cristian 3 Nita, Constantin I. 2 Beattie, Margaret 2 Crivei, Septimiu 2 Enache, P. 2 Ion, Ion D. 2 Kelarev, Andrei Vladimirovich 2 Manu, Cristina 2 Nastasescu, Maria M. 2 Rodinò, Nicola 2 Toader, Bogdan 1 Anghel, Panaite 1 Asensio, M. Jesus 1 Caenepeel, Stefaan 1 Chiteş, Costel 1 Cuadra, Juan 1 Dăncescu, S. 1 Dănescu, Sorin 1 del Río, Angel 1 Grunenfelder, Luzius 1 Ion, Bogdan 1 Jarvis, Peter D. 1 Joiţa, Daniela 1 Liu, Shaoxue 1 López-Ramos, Juan Antonio 1 Militaru, Gigel 1 Nauwelaerts, Erna 1 Niţă, Cristina 1 Otărăşanu, Ion 1 Panaite, Florin 1 Radu, Cristian-Silviu 1 Ríos Montes, José 1 Salim, Mohamed Ahmed M. 1 Savu, Ion 1 Ţena, Marcel 1 Van den Bergh, Michel 1 Velicu, Georgiana 1 Vercruysse, Joost 1 Vraciu, Constantin 1 Zhang, Yinhuo 1 Zhou, Borong all top 5 Serials 37 Communications in Algebra 29 Journal of Algebra 16 Revue Roumaine de Mathématiques Pures et Appliquées 10 Journal of Pure and Applied Algebra 8 Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences, Série A 4 Bulletin Mathématique de la Société des Sciences Mathématiques de la République Socialiste de Roumanie. Nouvelle Série 4 Bulletin Mathématique de la Société des Sciences Mathématiques de Roumanie. Nouvelle Série 3 Rendiconti del Seminario Matematico della Università di Padova 3 Tsukuba Journal of Mathematics 3 Gazeta Matematică 3 Applied Categorical Structures 3 Algebras and Representation Theory 2 Journal für die Reine und Angewandte Mathematik 2 Mathematische Zeitschrift 2 Gazeta Matematica. Perfecționare Metodica și Metodologica in Matematica și Informatica 2 \(K\)-Theory 2 Bulletin of the Belgian Mathematical Society - Simon Stevin 2 Acta Mathematica Sinica. English Series 2 Lecture Notes in Mathematics 2 Pure and Applied Mathematics, Marcel Dekker 1 Acta Mathematica Academiae Scientiarum Hungaricae 1 Rocky Mountain Journal of Mathematics 1 Analele Științifice ale Universității Al. I. Cuza din Iași. (Serie Nouă.) Secțiunea Ia. Matematică-Informatică 1 Annali dell’Università di Ferrara. Nuova Serie. Sezione VII 1 Bulletin of the London Mathematical Society 1 Bulletin de la Société Mathématique de France 1 Glasgow Mathematical Journal 1 International Journal of Mathematics and Mathematical Sciences 1 Mathematica Scandinavica 1 Pacific Journal of Mathematics 1 Revista de la Unión Matemática Argentina 1 Studii și Cercetări Matematice 1 Tôhoku Mathematical Journal. Second Series 1 Bulletin de la Société Matheḿatique de Belgique. Série B 1 Rivista di Matemàtica Pura ed Applicata 1 Publicacions Matemàtiques 1 Atti della Accademia Nazionale dei Lincei. Serie Ottava. Rendiconti. Classe di Scienze Fisiche, Matematiche e Naturali 1 Bulletin des Sciences Mathématiques 1 Analele Științifice ale Universității “Ovidius” Constanța. Seria: Matematică 1 Journal of Algebra and its Applications 1 Carpathian Journal of Mathematics 1 Annali della Scuola Normale Superiore di Pisa. Scienze Fisiche e Matematiche. III. Ser 1 Mathematics and its Applications (Dordrecht) 1 North-Holland Mathematical Library 1 Journal of Noncommutative Geometry all top 5 Fields 138 Associative rings and algebras (16-XX) 48 Category theory; homological algebra (18-XX) 27 Commutative algebra (13-XX) 6 Linear and multilinear algebra; matrix theory (15-XX) 4 Group theory and generalizations (20-XX) 3 Order, lattices, ordered algebraic structures (06-XX) 2 Combinatorics (05-XX) 1 General and overarching topics; collections (00-XX) 1 Field theory and polynomials (12-XX) 1 Nonassociative rings and algebras (17-XX) 1 Manifolds and cell complexes (57-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 136 Publications have been cited 1,783 times in 1,183 Documents Cited by ▼ Year ▼ Graded ring theory. Zbl 0494.16001 Nastasescu, C.; van Oystaeyen, F. 271 1982 Methods of graded rings. Zbl 1043.16017 Năstăsescu, Constantin; Van Oystaeyen, Freddy 202 2004 Hopf algebras. An introduction. Zbl 0962.16026 Dăscălescu, Sorin; Năstăsescu, Constantin; Raianu, Şerban 153 2001 Separable functors applied to graded rings. Zbl 0673.16026 Năstăsescu, C.; Van den Bergh, M.; Van Oystaeyen, F. 76 1989 Graded and filtered rings and modules. Zbl 0418.16001 Nastasescu, C.; van Oystaeyen, F. 70 1979 Relative finiteness in module theory. Zbl 0556.16001 Albu, Toma; Năstăsescu, Constantin 69 1984 Modules graded by G-sets. Zbl 0721.16025 Năstăsescu, C.; Raianu, S.; Van Oystaeyen, F. 46 1990 Group gradings on full matrix rings. Zbl 0947.16028 Dăscălescu, S.; Ion, B.; Năstăsescu, C.; Rios Montes, J. 40 1999 Hereditary coalgebras. Zbl 0855.16035 Nastasescu, C.; Torrecillas, B.; Zhang, Y. H. 37 1996 Dimensions of ring theory. Zbl 0626.16001 Năstăsescu, Constantin; Van Oystaeyen, Freddy 34 1987 Quasi-co-Frobenius coalgebras. Zbl 0833.16038 Gómez Torrecillas, José; Năstăsescu, Constantin 33 1995 Some constructions over graded rings: Applications. Zbl 0678.16001 Năstăsescu, Constantin 29 1989 Anneaux semi-artiniens. (Semi-artinian rings.). Zbl 0227.16014 Năstăsescu, Constantin; Popescu, Nicolae 25 1968 On strongly graded rings and crossed products. Zbl 0502.16001 Nastasescu, C.; van Oystaeyen, F. 25 1982 Strongly graded rings of finite groups. Zbl 0522.16002 Nastasescu, Constantin 23 1983 Group rings of graded rings. Applications. Zbl 0542.16003 Năstăsescu, Constantin 23 1984 Finiteness conditions, co-Frobenius Hopf algebras, and quantum groups. Zbl 0902.16028 Beattie, M.; Dăscălescu, S.; Grünenfelder, L.; Năstăsescu, C. 22 1998 Torsion theories for coalgebras. Zbl 0820.16026 Năstăsescu, C.; Torrecillas, B. 21 1994 Relative regular objects in categories. Zbl 1116.16037 Dăscălescu, S.; Năstăsescu, C.; Tudorache, A.; Dăuş, L. 21 2006 Frobenius functors: applications. Zbl 0949.16038 Castaño Iglesias, F.; Gómez Torrecillas, J.; Năstăsescu, C. 20 1999 When is R-gr equivalent to the category of modules? Zbl 0657.16025 Menini, C.; Năstăsescu, C. 19 1988 Jacobson radicals and maximal ideals of normalizing extensions applied to \(\mathbb Z\)-graded rings. Zbl 0493.16002 Năstăsescu, C.; Van Oystaeyen, F. 17 1982 La structure des modules par rapport à une topologie additive. Zbl 0283.16020 Nastasescu, Constantin 15 1974 Arithmetically graded rings revisited. Zbl 0603.16001 Năstăsescu, C.; Nauwelaerts, E.; van Oystaeyen, F. 15 1986 When is \(\text{HOM}_ R(M,-)\) equal to \(\text{Hom}_ R(M,-)\) in the category \(R\text{-gr}\)? Zbl 0802.16038 Gómez Pardo, J. L.; Militaru, G.; Năstăsescu, C. 13 1994 Modules Delta-injectifs sur les anneaux à dimension de Krull. Zbl 0468.16020 Nastasescu, Constantin 12 1981 Colocalization on Grothendieck categories with applications to coalgebras. Zbl 0863.18007 Năstăsescu, C.; Torrecillas, B. 12 1996 Localization in coalgebras: applications to finiteness conditions. Zbl 1145.16020 Gómez-Torrecillas, J.; Năstăsescu, C.; Torrecillas, B. 12 2007 Modules arithmétiques. Zbl 0298.13010 Albu, T.; Nastasescu, C. 11 1974 Graded coalgebras. Zbl 0819.16036 Năstăsescu, C.; Torrecillas, B. 11 1993 Graded modules over \(G\)-sets. II. Zbl 0737.16028 Nǎstǎsescu, Constantin; Liu, Shaoxue; Van Oystaeyen, F. 11 1991 Quasi-co-Frobenius coalgebras. II. Zbl 1042.16024 Gómez-Torrecillas, J.; Manu, C.; Năstăsescu, C. 11 2003 On gradings of matrix algebras and descent theory. Zbl 1019.16030 Caenepeel, S.; Dăscălescu, S.; Năstăsescu, C. 10 2002 Gradings of finite support. Application to injective objects. Zbl 0859.16036 Dăscălescu, S.; Năstăsescu, C.; Del Río, A.; Van Oystaeyen, Fred 10 1996 Separable functors in graded rings. Zbl 0931.18001 Castaño Iglesias, F.; Gómez Torrecillas, J.; Năstăsescu, C. 9 1998 Colby-Fuller duality between coalgebras. Zbl 0866.16024 Gómez Torrecillas, J.; Năstăsescu, C. 9 1996 Homological dimension of coalgebras and crossed coproducts. Zbl 0993.16027 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B. 9 2001 Frobenius algebras of corepresentations and group-graded vector spaces. Zbl 1318.16029 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 9 2014 Infinite group-graded rings, rings of endomorphisms, and localization. Zbl 0676.16001 Albu, Toma; Năstăsescu, Constantin 9 1989 Symmetric coalgebras. Zbl 1076.16034 Castaño Iglesias, F.; Dăscălescu, S.; Năstăsescu, C. 9 2004 The splitting problem for coalgebras. Zbl 1078.16047 Năstăsescu, C.; Torrecillas, B. 9 2004 Quelques remarques sur la dimension homologique des anneaux. Éléments réguliers. Zbl 0238.16022 Nastasescu, Constantin 9 1971 Co-Frobenius Hopf algebras: Integrals, Doi-Koppinen modules and injective objects. Zbl 0942.16040 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B. 8 1999 Décompositions primaires dans les categories de Grothendieck commutatives. I. Zbl 0328.13005 Albu, Toma; Nastasescu, Constantin 8 1976 Graded coalgebras and Morita-Takeuchi contexts. Zbl 0859.16032 Dăscălescu, S.; Năstăsescu, C.; Raianu, S.; Van Oystaeyen, Fred 8 1995 On the localization ring of a ring. Zbl 0206.05202 Năstăsescu, C.; Popescu, N. 8 1970 Delta-anneaux et modules Delta-injectifs. Applications aux categories localement Artiniennes. Zbl 0481.16006 Nastasescu, Constantin 8 1981 Conditions de finitude pour les modules. Zbl 0413.18009 Nastasescu, Constantin 7 1979 Décompositions primaires dans les categories de Grothendieck commutatives. II. Zbl 0328.13006 Albu, Toma; Nastasescu, Constantin 7 1976 Graded almost Noetherian rings and applications to coalgebras. Zbl 1019.16031 Cuadra, J.; Năstăsescu, C.; Van Oystaeyen, F. 7 2002 Relative projectivity, graded Clifford theory, and applications. Zbl 0742.16022 Gómez Pardo, J. L.; Nǎstǎsescu, C. 7 1991 Quiver algebras, path coalgebras and coreflexivity. Zbl 1277.16026 Dăscălescu, Sorin; Iovanov, Miodrag C.; Năstăsescu, Constantin 7 2013 Some aspects of non-noetherian local cohomology. Zbl 0437.13008 Albu, Toma; Nastasescu, Constantin 6 1980 Localization on graded modules, relative Maschke’s theorem and applications. Zbl 0705.16024 Năstăsescu, Constantin; Rodinò, Nicola 6 1990 Path subcoalgebras, finiteness properties and quantum groups. Zbl 1290.16033 Dăscălescu, Sorin; Iovanov, Miodrag C.; Năstăsescu, Constantin 6 2013 V-categories: applications to graded rings. Zbl 1183.18006 Dăuş, L.; Năstăsescu, C.; van Oystaeyen, F. 6 2009 La filtration de Gabriel. Zbl 0277.13009 Nastasescu, Constantin 5 1974 The splitting property for graded rings. Zbl 0589.16001 Gómez Pardo, José L.; Năstăsescu, C. 5 1986 Graded rings with finiteness conditions. II. Zbl 0597.16003 Năstăsescu, C.; van Oystaeyen, F. 5 1985 A Clifford theory of graded coalgebras: Applications. Zbl 0829.16031 Năstăsescu, C.; Torrecillas, B. 5 1995 The strongly prime radical of graded rings. Zbl 0548.16002 Năstăsescu, C.; van Oystaeyen, F. 5 1984 Conditions de finitude pour les modules. II. Zbl 0484.16011 Nastasescu, Constantin 5 1980 Smash product and applications to finiteness conditions. Zbl 0689.16001 Năstăsescu, Constantin 5 1989 L’anneau des endomorphismes d’un module de torsion. Zbl 0249.16015 Nastasescu, Constantin 5 1972 Anneaux de quotients et modules Sigma(Delta)-injectifs. Zbl 0453.16002 Nastasescu, Constantin 4 1981 Sur la structure des objets de certaines categories abeliennes. Zbl 0283.18003 Nastasescu, Constantin; Popescu, Nicolae 4 1966 Involutory Hopf algebras with non-zero integrals. Zbl 1038.16026 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B. 4 2002 IBN for graded rings. Zbl 0951.16016 Năstăsescu, C.; Torrecillas, B.; Van Oystaeyen, F. 4 2000 When are induction and coinduction functors isomorphic? Zbl 0815.18006 Menini, Claudia; Nastasescu, Constantin 4 1994 Topological aspects of graded rings. Zbl 0834.16039 Gómez Pardo, J. L.; Năstăsescu, C. 4 1993 Relative graded Clifford theory. Zbl 0808.16046 Nǎstǎsescu, C.; Torrecillas, B. 4 1992 Décomposition primaire dans les anneaux semi-artiniens. Zbl 0191.03701 Nastasescu, C. 4 1970 \(gr\)-simple modules and \(gr\)-Jacobson radical applications. I. Zbl 0810.16040 Menini, Claudia; Năstăsescu, Constantin 4 1990 Graded T-rings. Zbl 0692.16001 Năstăsescu, Constantin; Dăscălescu, Sorin 4 1989 Décomposition primaire des modules. Zbl 0245.13008 Nastasescu, Constantin; Albu, Toma 4 1972 Comodules graded by \(G\)-sets and applications. Zbl 0873.16025 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B.; Van Oystaeyen, F. 4 1997 Duality theorems for graded algebras and coalgebras. Zbl 0880.16019 Dăscălescu, S.; Năstăsescu, C.; Van Oystaeyen, F.; Torrecillas, B. 4 1997 On the Osofsky-Smith theorem. Zbl 1222.16005 Crivei, Septimiu; Năstăsescu, Constantin; Torrecillas, Blas 4 2010 External homogenization for Hopf algebras: Applications to Maschke’s theorem. Zbl 0942.16044 Năstăsescu, Constantin; Panaite, Florin; Van Oystaeyen, Freddy 3 1999 Strongly graded coalgebras and crossed coproducts. Zbl 0915.16030 Dăscălescu, S.; Năstăsescu, C.; Raianu, Ş. 3 1998 Finiteness conditions for graded modules (Gr-\(\Sigma\) (\(\Delta\) )- injective modules). Zbl 0587.16001 Năstăsescu, Constantin; Raianu, Şerban 3 1986 Group graded rings and smash products. Zbl 0602.16002 Năstăsescu, C.; Rodinò, N. 3 1985 Separable functors in coalgebras. Applications. Zbl 0902.16030 Castaño Iglesias, F.; Gómez Torrecillas, J.; Năstăsescu, C. 3 1997 Wide Morita contexts, relative injectivity and equivalence results. Zbl 1111.16007 Chifan, N.; Dăscălescu, S.; Năstăsescu, C. 3 2005 Minimal projective resolutions for comodules. Zbl 1074.16025 López-Ramos, J. A.; Nastasescu, C.; Torrecillas, B. 3 2004 Gabriel-Popescu type theorems and applications. (Un analogue du théorème de Gabriel-Popescu et applications.) Zbl 1074.18002 Castaño Iglesias, F.; Enache, P.; Năstăsescu, C.; Torrecillas, B. 3 2004 Graded semiartinian rings: graded perfect rings. Zbl 1044.16032 Năstăsescu, C.; Dăuş, L.; Torrecillas, B. 3 2003 Théoreme de Hopkins pour les categories de Grothendieck. Zbl 0442.18004 Nastasescu, Constantin 2 1980 La filtrazione di Gabriel. II. Zbl 0283.16019 Nastasescu, Costantin 2 1974 Modules over Krull rings. (Modules sur les anneaux de Krull.) Zbl 0358.13003 Albu, Toma; Nastasescu, Constantin 2 1976 Graded semisimple algebras are symmetric. Zbl 1411.16041 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 2 2017 Gabriel dimension of graded rings. II. Zbl 0645.16017 Năstăsescu, Constantin; Raianu, Şerban 2 1988 Graded Clifford theory and duality. Zbl 0808.16045 Gómez Pardo, J. L.; Năstăsescu, C. 2 1993 Morita duality for Grothendieck categories with applications to coalgebras. Zbl 1101.16031 Năstăsescu, C.; Torrecillas, B. 2 2005 Atomical Grothendieck categories. Zbl 1073.18005 Năstăsescu, C.; Torrecillas, B. 2 2003 Graded version of Kato-Müller theorem. Applications. Zbl 1089.16026 Castaño Iglesias, F.; Năstăsescu, C. 2 2005 Objets noetheriens par rapport à une sous-categorie epaisse d’une categorie abelienne. Zbl 0163.26804 Nastasescu, Constantin; Nita, Constantin 2 1965 \(\Sigma\) (\(\Delta\) )-injective modules over a strongly graded ring. Zbl 0552.16001 Năstăsescu, Constantin 2 1984 A note on the socle of graded modules. Zbl 0561.16001 Năstăsescu, C.; van Oystaeyen, F. 2 1985 Local cohomology and torsion theory. I. Zbl 0474.13008 Albu, Toma; Nastasescu, Constantin 2 1981 On a class of quasi-Frobenius algebras. Zbl 1498.16024 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 1 2022 Hopf algebra actions and transfer of Frobenius and symmetric properties. Zbl 1445.16032 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 1 2020 Graded semisimple algebras are symmetric. Zbl 1411.16041 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 2 2017 Symmetric algebras in categories of corepresentations and smash products. Zbl 1372.16029 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 2 2016 Group gradings on polynomial algebras. Zbl 1358.13003 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 1 2016 Frobenius algebras of corepresentations and group-graded vector spaces. Zbl 1318.16029 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, L. 9 2014 Quiver algebras, path coalgebras and coreflexivity. Zbl 1277.16026 Dăscălescu, Sorin; Iovanov, Miodrag C.; Năstăsescu, Constantin 7 2013 Path subcoalgebras, finiteness properties and quantum groups. Zbl 1290.16033 Dăscălescu, Sorin; Iovanov, Miodrag C.; Năstăsescu, Constantin 6 2013 Recollement of Grothendieck categories. Applications to schemes. Zbl 1313.18014 Joiţa, D.; Năstăsescu, C.; Năstăsescu, L. 1 2013 A generalization of the Mitchell lemma: the Ulmer theorem and the Gabriel-Popescu theorem revisited. Zbl 1264.18013 Crivei, Septimiu; Năstăsescu, Constantin; Năstăsescu, Laura 1 2012 On the Osofsky-Smith theorem. Zbl 1222.16005 Crivei, Septimiu; Năstăsescu, Constantin; Torrecillas, Blas 4 2010 Balanced bilinear forms and finiteness properties for incidence coalgebras over a field. Zbl 1218.16024 Dăscălescu, S.; Năstăsescu, C.; Velicu, G. 2 2010 On the dimension of the space of integrals on coalgebras. Zbl 1231.16026 Dăscălescu, S.; Năstăsescu, C.; Toader, B. 2 2010 A version of the Gabriel-Popescu theorem. Zbl 1240.18021 Nastasescu, Constantin; Chites, Costel 2 2010 V-categories: applications to graded rings. Zbl 1183.18006 Dăuş, L.; Năstăsescu, C.; van Oystaeyen, F. 6 2009 Localization on certain Grothendieck categories. Zbl 1187.18007 Castaño-Iglesias, F.; Chifan, N.; Năstăsescu, C. 2 2009 Strongly involutory functors. Zbl 1226.18001 Dăscălescu, S.; Năstăsescu, C.; Năstăsescu, M. 1 2009 When is a coalgebra a generator? Zbl 1155.16029 Năstăsescu, C.; Torrecillas, B.; Van Oystaeyen, F. 2 2008 The Dickson subcategory splitting conjecture for pseudocompact algebras. Zbl 1170.16023 Iovanov, Miodrag Cristian; Năstăsescu, Constantin; Torrecillas Jover, Blass 2 2008 Localization in coalgebras: applications to finiteness conditions. Zbl 1145.16020 Gómez-Torrecillas, J.; Năstăsescu, C.; Torrecillas, B. 12 2007 Relative regular objects in categories. Zbl 1116.16037 Dăscălescu, S.; Năstăsescu, C.; Tudorache, A.; Dăuş, L. 21 2006 Topological linear compactness for Grothendieck categories. Theorem of Tychonoff. Applications to coalgebras. Zbl 1145.18003 Enache, P.; Năstăsescu, C.; Torrecillas, B. 1 2006 Wide Morita contexts, relative injectivity and equivalence results. Zbl 1111.16007 Chifan, N.; Dăscălescu, S.; Năstăsescu, C. 3 2005 Morita duality for Grothendieck categories with applications to coalgebras. Zbl 1101.16031 Năstăsescu, C.; Torrecillas, B. 2 2005 Graded version of Kato-Müller theorem. Applications. Zbl 1089.16026 Castaño Iglesias, F.; Năstăsescu, C. 2 2005 Methods of graded rings. Zbl 1043.16017 Năstăsescu, Constantin; Van Oystaeyen, Freddy 202 2004 Symmetric coalgebras. Zbl 1076.16034 Castaño Iglesias, F.; Dăscălescu, S.; Năstăsescu, C. 9 2004 The splitting problem for coalgebras. Zbl 1078.16047 Năstăsescu, C.; Torrecillas, B. 9 2004 Minimal projective resolutions for comodules. Zbl 1074.16025 López-Ramos, J. A.; Nastasescu, C.; Torrecillas, B. 3 2004 Gabriel-Popescu type theorems and applications. (Un analogue du théorème de Gabriel-Popescu et applications.) Zbl 1074.18002 Castaño Iglesias, F.; Enache, P.; Năstăsescu, C.; Torrecillas, B. 3 2004 On associative superalgebras of matrices. Zbl 1067.16062 Dăscălescu, S.; Jarvis, P. D.; Kelarev, A. V.; Năstăsescu, C. 1 2004 Quasi-co-Frobenius coalgebras. II. Zbl 1042.16024 Gómez-Torrecillas, J.; Manu, C.; Năstăsescu, C. 11 2003 Graded semiartinian rings: graded perfect rings. Zbl 1044.16032 Năstăsescu, C.; Dăuş, L.; Torrecillas, B. 3 2003 Atomical Grothendieck categories. Zbl 1073.18005 Năstăsescu, C.; Torrecillas, B. 2 2003 On gradings of matrix algebras and descent theory. Zbl 1019.16030 Caenepeel, S.; Dăscălescu, S.; Năstăsescu, C. 10 2002 Graded almost Noetherian rings and applications to coalgebras. Zbl 1019.16031 Cuadra, J.; Năstăsescu, C.; Van Oystaeyen, F. 7 2002 Involutory Hopf algebras with non-zero integrals. Zbl 1038.16026 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B. 4 2002 Block theory for Grothendieck categories: Applications. Zbl 1033.18006 Manu, Cristina; Năstăsescu, C.; Van Oystaeyen, F. 1 2002 Hopf algebras. An introduction. Zbl 0962.16026 Dăscălescu, Sorin; Năstăsescu, Constantin; Raianu, Şerban 153 2001 Homological dimension of coalgebras and crossed coproducts. Zbl 0993.16027 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B. 9 2001 On a Dade’s conjecture. Zbl 0988.16030 Năstăsescu, Constantin; Dăuş, Leonard 1 2001 IBN for graded rings. Zbl 0951.16016 Năstăsescu, C.; Torrecillas, B.; Van Oystaeyen, F. 4 2000 Group gradings on full matrix rings. Zbl 0947.16028 Dăscălescu, S.; Ion, B.; Năstăsescu, C.; Rios Montes, J. 40 1999 Frobenius functors: applications. Zbl 0949.16038 Castaño Iglesias, F.; Gómez Torrecillas, J.; Năstăsescu, C. 20 1999 Co-Frobenius Hopf algebras: Integrals, Doi-Koppinen modules and injective objects. Zbl 0942.16040 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B. 8 1999 External homogenization for Hopf algebras: Applications to Maschke’s theorem. Zbl 0942.16044 Năstăsescu, Constantin; Panaite, Florin; Van Oystaeyen, Freddy 3 1999 Finiteness conditions, co-Frobenius Hopf algebras, and quantum groups. Zbl 0902.16028 Beattie, M.; Dăscălescu, S.; Grünenfelder, L.; Năstăsescu, C. 22 1998 Separable functors in graded rings. Zbl 0931.18001 Castaño Iglesias, F.; Gómez Torrecillas, J.; Năstăsescu, C. 9 1998 Strongly graded coalgebras and crossed coproducts. Zbl 0915.16030 Dăscălescu, S.; Năstăsescu, C.; Raianu, Ş. 3 1998 Comodules graded by \(G\)-sets and applications. Zbl 0873.16025 Dăscălescu, S.; Năstăsescu, C.; Torrecillas, B.; Van Oystaeyen, F. 4 1997 Duality theorems for graded algebras and coalgebras. Zbl 0880.16019 Dăscălescu, S.; Năstăsescu, C.; Van Oystaeyen, F.; Torrecillas, B. 4 1997 Separable functors in coalgebras. Applications. Zbl 0902.16030 Castaño Iglesias, F.; Gómez Torrecillas, J.; Năstăsescu, C. 3 1997 Hereditary coalgebras. Zbl 0855.16035 Nastasescu, C.; Torrecillas, B.; Zhang, Y. H. 37 1996 Colocalization on Grothendieck categories with applications to coalgebras. Zbl 0863.18007 Năstăsescu, C.; Torrecillas, B. 12 1996 Gradings of finite support. Application to injective objects. Zbl 0859.16036 Dăscălescu, S.; Năstăsescu, C.; Del Río, A.; Van Oystaeyen, Fred 10 1996 Colby-Fuller duality between coalgebras. Zbl 0866.16024 Gómez Torrecillas, J.; Năstăsescu, C. 9 1996 Quasi-co-Frobenius coalgebras. Zbl 0833.16038 Gómez Torrecillas, José; Năstăsescu, Constantin 33 1995 Graded coalgebras and Morita-Takeuchi contexts. Zbl 0859.16032 Dăscălescu, S.; Năstăsescu, C.; Raianu, S.; Van Oystaeyen, Fred 8 1995 A Clifford theory of graded coalgebras: Applications. Zbl 0829.16031 Năstăsescu, C.; Torrecillas, B. 5 1995 Torsion theories for coalgebras. Zbl 0820.16026 Năstăsescu, C.; Torrecillas, B. 21 1994 When is \(\text{HOM}_ R(M,-)\) equal to \(\text{Hom}_ R(M,-)\) in the category \(R\text{-gr}\)? Zbl 0802.16038 Gómez Pardo, J. L.; Militaru, G.; Năstăsescu, C. 13 1994 When are induction and coinduction functors isomorphic? Zbl 0815.18006 Menini, Claudia; Nastasescu, Constantin 4 1994 Graded coalgebras. Zbl 0819.16036 Năstăsescu, C.; Torrecillas, B. 11 1993 Topological aspects of graded rings. Zbl 0834.16039 Gómez Pardo, J. L.; Năstăsescu, C. 4 1993 Graded Clifford theory and duality. Zbl 0808.16045 Gómez Pardo, J. L.; Năstăsescu, C. 2 1993 Relative graded Clifford theory. Zbl 0808.16046 Nǎstǎsescu, C.; Torrecillas, B. 4 1992 Graded modules over \(G\)-sets. II. Zbl 0737.16028 Nǎstǎsescu, Constantin; Liu, Shaoxue; Van Oystaeyen, F. 11 1991 Relative projectivity, graded Clifford theory, and applications. Zbl 0742.16022 Gómez Pardo, J. L.; Nǎstǎsescu, C. 7 1991 Modules graded by G-sets. Zbl 0721.16025 Năstăsescu, C.; Raianu, S.; Van Oystaeyen, F. 46 1990 Localization on graded modules, relative Maschke’s theorem and applications. Zbl 0705.16024 Năstăsescu, Constantin; Rodinò, Nicola 6 1990 \(gr\)-simple modules and \(gr\)-Jacobson radical applications. I. Zbl 0810.16040 Menini, Claudia; Năstăsescu, Constantin 4 1990 \(gr\)-simple modules and \(gr\)-Jacobson radical applications. II. Zbl 0810.16041 Menini, Claudia; Năstăsescu, C. 2 1990 Separable functors applied to graded rings. Zbl 0673.16026 Năstăsescu, C.; Van den Bergh, M.; Van Oystaeyen, F. 76 1989 Some constructions over graded rings: Applications. Zbl 0678.16001 Năstăsescu, Constantin 29 1989 Infinite group-graded rings, rings of endomorphisms, and localization. Zbl 0676.16001 Albu, Toma; Năstăsescu, Constantin 9 1989 Smash product and applications to finiteness conditions. Zbl 0689.16001 Năstăsescu, Constantin 5 1989 Graded T-rings. Zbl 0692.16001 Năstăsescu, Constantin; Dăscălescu, Sorin 4 1989 When is R-gr equivalent to the category of modules? Zbl 0657.16025 Menini, C.; Năstăsescu, C. 19 1988 Gabriel dimension of graded rings. II. Zbl 0645.16017 Năstăsescu, Constantin; Raianu, Şerban 2 1988 Dimensions of ring theory. Zbl 0626.16001 Năstăsescu, Constantin; Van Oystaeyen, Freddy 34 1987 Arithmetically graded rings revisited. Zbl 0603.16001 Năstăsescu, C.; Nauwelaerts, E.; van Oystaeyen, F. 15 1986 The splitting property for graded rings. Zbl 0589.16001 Gómez Pardo, José L.; Năstăsescu, C. 5 1986 Finiteness conditions for graded modules (Gr-\(\Sigma\) (\(\Delta\) )- injective modules). Zbl 0587.16001 Năstăsescu, Constantin; Raianu, Şerban 3 1986 Graded rings with finiteness conditions. II. Zbl 0597.16003 Năstăsescu, C.; van Oystaeyen, F. 5 1985 Group graded rings and smash products. Zbl 0602.16002 Năstăsescu, C.; Rodinò, N. 3 1985 A note on the socle of graded modules. Zbl 0561.16001 Năstăsescu, C.; van Oystaeyen, F. 2 1985 External homogenization for finitely generated Abelian groups. Zbl 0608.16001 Năstăsescu, Constantin; Raianu, Şerban 1 1985 Relative finiteness in module theory. Zbl 0556.16001 Albu, Toma; Năstăsescu, Constantin 69 1984 Group rings of graded rings. Applications. Zbl 0542.16003 Năstăsescu, Constantin 23 1984 The strongly prime radical of graded rings. Zbl 0548.16002 Năstăsescu, C.; van Oystaeyen, F. 5 1984 \(\Sigma\) (\(\Delta\) )-injective modules over a strongly graded ring. Zbl 0552.16001 Năstăsescu, Constantin 2 1984 Note on graded rings with finiteness conditions. Zbl 0542.16002 Năstăsescu, C.; van Oystaeyen, F. 1 1984 Gabriel dimension of graded rings. Zbl 0545.13006 Năstăsescu, Constantin; Raianu, Şerban 1 1984 Strongly graded rings of finite groups. Zbl 0522.16002 Nastasescu, Constantin 23 1983 Dimension theory in noncommutative algebra. (Teoria dimensiunii in algebra necomutativă). Zbl 0622.16008 Năstăsescu, C. 1 1983 Graded ring theory. Zbl 0494.16001 Nastasescu, C.; van Oystaeyen, F. 271 1982 On strongly graded rings and crossed products. Zbl 0502.16001 Nastasescu, C.; van Oystaeyen, F. 25 1982 Jacobson radicals and maximal ideals of normalizing extensions applied to \(\mathbb Z\)-graded rings. Zbl 0493.16002 Năstăsescu, C.; Van Oystaeyen, F. 17 1982 Modules Delta-injectifs sur les anneaux à dimension de Krull. Zbl 0468.16020 Nastasescu, Constantin 12 1981 Delta-anneaux et modules Delta-injectifs. Applications aux categories localement Artiniennes. Zbl 0481.16006 Nastasescu, Constantin 8 1981 ...and 36 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 902 Authors 77 Nastasescu, Constantin 59 Torrecillas Jover, Blas 59 van Oystaeyen, Freddy 30 Dăscălescu, Sorin 27 Abu-Dawwas, Rashid 26 Albu, Toma 26 Caenepeel, Stefaan 26 Iovanov, Miodrag-Cristian 25 Al-Zoubi, Khaldoun 25 Menini, Claudia 23 Crivei, Septimiu 23 Gómez Torrecillas, José 18 Van den Bergh, Michel 17 Gómez Pardo, José Luis 15 Jespers, Eric 15 Raianu, Şerban 14 Bulacu, Daniel 14 Hazrat, Roozbeh 14 Tuganbaev, Askar Akanovich 12 Ardizzoni, Alessandro 12 Militaru, Gigel 12 Rangaswamy, Kulumani M. 11 Beattie, Margaret 11 Castaño Iglesias, Florencio 11 Vercruysse, Joost 10 Bataineh, Malik 10 Teply, Mark L. 10 Verschoren, Alain H. M. J. 9 Calderón Martín, Antonio Jesús 9 del Río, Angel 9 Keskin Tutuncu, Derya 9 López-Ramos, Juan Antonio 9 Năstăsescu, Laura 9 Wang, Shuanhong 9 Yao, Hailou 9 Žemlička, Jan 9 Zhang, James J. 9 Zhang, Yinhuo 8 Abrams, Gene D. 8 Alghueiri, Shatha 8 Bahturin, Yuri 8 Brzeziński, Tomasz 8 El Kaoutit, Laiachi 8 García Rozas, Juan Ramon 8 Gordienko, Alekseĭ Sergeevich 8 Ilić-Georgijević, Emil 8 Jara, Pascual 8 Kanunnikov, Andrei Leonidovich 8 Marubayashi, Hidetoshi 8 Mikhalëv, Aleksandr Vasil’evich 8 Öinert, Johan 7 Asensio, M. Jesus 7 Böhm, Gabriella 7 Chin, William 7 Chirvăsitu, Alexandru 7 Pinedo, Hector 7 Popescu, Nicolae 7 Simson, Daniel 7 Tribak, Rachid 7 Vaš, Lia 6 Alraqad, Tariq A. 6 Balaba, Irina Nikolaevna 6 Delvaux, Lydia 6 Diniz Pereira da Silva e Silva, Diogo 6 Ghiasvand, Peyman 6 Ginosar, Yuval 6 He, Jiwei 6 Iosif, Mihai 6 Li, Huishi 6 Lundström, Patrik 6 Marcus, Andrei 6 Nauwelaerts, Erna 6 Olteanu, Gabriela 6 Refai, Mashhoor 6 Rogalski, Daniel 6 Siles Molina, Mercedes 6 Wauters, Paul 6 Wisbauer, Robert 5 Bavula, Vladimir V. 5 Boboc, Crina 5 Bueso, José Luis 5 Cuadra, Juan 5 Dăuş, Leonard 5 Farzalipour, Farkhonde 5 García Hernández, José Luis 5 Markov, Viktor Timofeevich 5 Porst, Hans-Eberhard 5 Reyes, Manuel L. 5 Ríos Montes, José 5 Rohrer, Fred 5 Saber, Hicham 5 Saracco, Paolo 5 Zaĭtsev, Mikhail Vladimirovich 5 Zhu, Shenglin 4 Agore, Ana-Loredana 4 Alshehry, Azzh Saad 4 Balodi, Mamta 4 Banerjee, Abhishek 4 Batista, Eliezer 4 Castilho de Mello, Thiago ...and 802 more Authors all top 5 Cited in 172 Serials 222 Journal of Algebra 213 Communications in Algebra 104 Journal of Pure and Applied Algebra 51 Algebras and Representation Theory 44 Journal of Algebra and its Applications 27 Israel Journal of Mathematics 27 Advances in Mathematics 26 Proceedings of the American Mathematical Society 25 Transactions of the American Mathematical Society 19 Journal of Mathematical Sciences (New York) 17 Applied Categorical Structures 15 Linear Algebra and its Applications 11 Journal of Noncommutative Geometry 10 Glasgow Mathematical Journal 9 Mathematische Zeitschrift 9 Rendiconti del Seminario Matematico della Università di Padova 9 Frontiers of Mathematics in China 8 Archiv der Mathematik 8 Czechoslovak Mathematical Journal 8 Acta Mathematica Sinica. English Series 8 Proyecciones 7 Bulletin of the Australian Mathematical Society 7 São Paulo Journal of Mathematical Sciences 6 Colloquium Mathematicum 6 Quaestiones Mathematicae 6 Communications of the Korean Mathematical Society 5 Beiträge zur Algebra und Geometrie 5 Demonstratio Mathematica 5 Forum Mathematicum 5 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 5 Boletim da Sociedade Paranaense de Matemática. Terceira Série 5 International Electronic Journal of Algebra (IEJA) 4 Linear and Multilinear Algebra 4 Mathematical Notes 4 Journal of Soviet Mathematics 4 Acta Mathematica Hungarica 4 Mediterranean Journal of Mathematics 4 Iranian Journal of Mathematical Sciences and Informatics 3 Acta Mathematica Academiae Scientiarum Hungaricae 3 Moscow University Mathematics Bulletin 3 Bulletin of the Korean Mathematical Society 3 Bulletin of the Belgian Mathematical Society - Simon Stevin 3 Turkish Journal of Mathematics 3 Documenta Mathematica 3 Representation Theory 3 Vietnam Journal of Mathematics 3 JP Journal of Algebra, Number Theory and Applications 3 Algebra and Discrete Mathematics 3 Annali dell’Università di Ferrara. Sezione VII. Scienze Matematiche 3 Journal of \(K\)-Theory 3 Acta Universitatis Sapientiae. Mathematica 3 Open Mathematics 3 AIMS Mathematics 2 Communications in Mathematical Physics 2 Discrete Mathematics 2 Mathematical Proceedings of the Cambridge Philosophical Society 2 Rocky Mountain Journal of Mathematics 2 Journal of Geometry and Physics 2 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg 2 Algebra and Logic 2 Annales de l’Institut Fourier 2 Annali di Matematica Pura ed Applicata. Serie Quarta 2 Canadian Journal of Mathematics 2 Compositio Mathematica 2 Fuzzy Sets and Systems 2 International Journal of Mathematics and Mathematical Sciences 2 Inventiones Mathematicae 2 Matematički Vesnik 2 Mathematische Annalen 2 Memoirs of the American Mathematical Society 2 Nagoya Mathematical Journal 2 \(K\)-Theory 2 International Journal of Mathematics 2 International Journal of Algebra and Computation 2 Bulletin of the American Mathematical Society. New Series 2 Proceedings of the Indian Academy of Sciences. Mathematical Sciences 2 Expositiones Mathematicae 2 Journal of Algebraic Combinatorics 2 Algebra Colloquium 2 Selecta Mathematica. New Series 2 Bulletin des Sciences Mathématiques 2 Theory and Applications of Categories 2 Transformation Groups 2 Journal of the Australian Mathematical Society 2 Comptes Rendus. Mathématique. Académie des Sciences, Paris 2 Hacettepe Journal of Mathematics and Statistics 2 Palestine Journal of Mathematics 2 Journal of Algebra and Related Topics 2 Algebraic Structures and their Applications 2 Bollettino dell’Unione Matematica Italiana 1 Journal of Mathematical Physics 1 Letters in Mathematical Physics 1 Nuclear Physics. B 1 Reports on Mathematical Physics 1 Ukrainian Mathematical Journal 1 Arkiv för Matematik 1 Annales Scientifiques de l’École Normale Supérieure. Quatrième Série 1 Bulletin de la Société Mathématique de France 1 Canadian Mathematical Bulletin 1 Commentationes Mathematicae Universitatis Carolinae ...and 72 more Serials all top 5 Cited in 37 Fields 1,019 Associative rings and algebras (16-XX) 261 Category theory; homological algebra (18-XX) 173 Commutative algebra (13-XX) 100 Nonassociative rings and algebras (17-XX) 79 Group theory and generalizations (20-XX) 78 Algebraic geometry (14-XX) 43 Order, lattices, ordered algebraic structures (06-XX) 26 Quantum theory (81-XX) 24 Functional analysis (46-XX) 22 Combinatorics (05-XX) 19 Linear and multilinear algebra; matrix theory (15-XX) 14 \(K\)-theory (19-XX) 12 Algebraic topology (55-XX) 10 Topological groups, Lie groups (22-XX) 10 Global analysis, analysis on manifolds (58-XX) 9 Field theory and polynomials (12-XX) 6 Several complex variables and analytic spaces (32-XX) 6 Manifolds and cell complexes (57-XX) 5 Differential geometry (53-XX) 4 Number theory (11-XX) 4 Information and communication theory, circuits (94-XX) 3 Abstract harmonic analysis (43-XX) 2 General algebraic systems (08-XX) 2 Dynamical systems and ergodic theory (37-XX) 2 Operator theory (47-XX) 2 Convex and discrete geometry (52-XX) 2 Probability theory and stochastic processes (60-XX) 2 Computer science (68-XX) 1 General and overarching topics; collections (00-XX) 1 Mathematical logic and foundations (03-XX) 1 Partial differential equations (35-XX) 1 Difference and functional equations (39-XX) 1 General topology (54-XX) 1 Statistics (62-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Operations research, mathematical programming (90-XX) 1 Systems theory; control (93-XX) Citations by Year Wikidata Timeline The data are displayed as stored in Wikidata under a Creative Commons CC0 License. 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