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Nastasescu, Constantin Author

Open Access

Co-Frobenius Hopf Algebras: Integrals, Doi-Koppinen Modules and Injective Objects

  • Dâscâlescu S.
  • Nâstâsescu C.
  • Torrecillas B.

Journal of Algebra - 15/10/1999

10.1006/jabr.1999.7934

Cite count: 10 (Web of Science) 9 (Scopus)
  • JCR Quartile: Q2 (1999)
  • SJR Quartile: Q1
  • JCR Impact Factor: 0.44 (2022)
  • Category normalized Impact: 0.686 (1999)
  • CiteScore: 1.4 (2020)
  • SJR: 1.567 (1999
  • SNIP: 1.107 (1999
  • SJR Categories: Algebra and Number Theory (Q1)

External Homogenization for Hopf Algebras: Applications to Maschke's Theorem

  • N?st?sescu C.
  • Panaite F.
  • Van Oystaeyen F.

Algebras and Representation Theory - 1/1/1999

10.1023/a:1009931309850

Cite count: 4 (Scopus)
  • SJR Quartile: Q3
  • CiteScore: 1 (2020)
  • SJR: 0.247 (1999
  • SNIP: 0.135 (1999
  • SJR Categories: Mathematics (miscellaneous) (Q3)

Frobenius functors: Applications

  • Castaño Iglesias F.
  • Gómez Torrecillas J.
  • N?st?sescu C.

Communications in Algebra - 1/1/1999

10.1080/00927879908826735

Cite count: 26 (Web of Science) 25 (Scopus)
  • JCR Quartile: Q3 (1999)
  • SJR Quartile: Q2
  • JCR Impact Factor: 0.286 (2022)
  • Category normalized Impact: 1.783 (1999)
  • CiteScore: 1 (2020)
  • SJR: 1.097 (1999
  • SNIP: 0.95 (1999
  • SJR Categories: Algebra and Number Theory (Q2)
Open Access

Finiteness Conditions, Co-Frobenius Hopf Algebras, and Quantum Groups

  • Beattie M.
  • Dascalescu S.
  • Grünenfelder L.
  • Nastasescu C.

Journal of Algebra - 1/2/1998

10.1006/jabr.1997.7238

Cite count: 35 (Scopus)
  • CiteScore: 1.4 (2020)
Open Access

Separable functors in graded rings

  • Iglesias, FC
  • Torrecillas, JG
  • Nastasescu, C

JOURNAL OF PURE AND APPLIED ALGEBRA - 29/05/1998

10.1016/s0022-4049(96)00181-8 View source

Cite count: 13 (Web of Science) 12 (Scopus)
  • JCR Quartile: Q2 (1998)
  • JCR Impact Factor: 0.37 (2022)
  • Category normalized Impact: 0.658 (1998)
  • CiteScore: 1.4 (2020)
Open Access

Duality theorems for graded algebras and coalgebras

  • D?sc?lescu S.
  • N?st?sescu C.
  • Van Oystaeyen F.
  • Torrecillas B.

Journal of Algebra - 1/6/1997

10.1006/jabr.1996.6983

Cite count: 5 (Web of Science) 3 (Scopus)
  • JCR Quartile: Q2 (1997)
  • JCR Impact Factor: 0.365 (2022)
  • Category normalized Impact: 0.362 (1997)
  • CiteScore: 1.4 (2020)

Comodules graded by G-sets and applications

  • D?sc?lescu S.
  • N?st?sescu C.
  • Torrecillas B.
  • Van Oystaeven F.

Communications in Algebra - 1/1/1997

10.1080/00927879708825843

Cite count: 4 (Web of Science) 5 (Scopus)
  • JCR Quartile: Q3 (1997)
  • JCR Impact Factor: 0.267 (2022)
  • Category normalized Impact: 0.29 (1997)
  • CiteScore: 1 (2020)
Open Access

Gradings of finite support. Application to injective objects

  • D?sc?lescu S.
  • N?st?sescu C.
  • Del Rio A.
  • Van Oystaeyen F.

Journal of Pure and Applied Algebra - 25/3/1996

10.1016/0022-4049(95)00063-1

Cite count: 10 (Scopus)
  • CiteScore: 1.4 (2020)
Open Access

Colby-Fuller duality between coalgebras

  • Gómez Torrecillas J.
  • N?st?sescu C.

Journal of Algebra - 15/10/1996

10.1006/jabr.1996.0338

Cite count: 6 (Web of Science) 9 (Scopus)
  • CiteScore: 1.4 (2020)
Open Access

Colocalization on Grothendieck categories with applications to coalgebras

  • N?st?sescu C.
  • Torrecillas B.

Journal of Algebra - 1/10/1996

10.1006/jabr.1996.0315

Cite count: 13 (Web of Science) 14 (Scopus)
  • JCR Impact Factor: 0.745 (2022)
  • Category normalized Impact: 0.924 (1996)
  • CiteScore: 1.4 (2020)

This author has no books, chapters or theses.

This author has no conferences.

This author has no patents.

This author has no reports or other types of publications.

Scopus: 16

Web of Science: 10

Scopus: 33

Web of Science: 11

Last data update: 5/4/24 6:53 AM
Next scheduled update: 5/11/24 3:00 AM