Grigore Călugăreanu

632 total citations
51 papers, 367 citations indexed

About

Grigore Călugăreanu is a scholar working on Algebra and Number Theory, Geometry and Topology and Computational Theory and Mathematics. According to data from OpenAlex, Grigore Călugăreanu has authored 51 papers receiving a total of 367 indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Algebra and Number Theory, 27 papers in Geometry and Topology and 14 papers in Computational Theory and Mathematics. Recurrent topics in Grigore Călugăreanu's work include Rings, Modules, and Algebras (39 papers), Advanced Topics in Algebra (25 papers) and Algebraic structures and combinatorial models (15 papers). Grigore Călugăreanu is often cited by papers focused on Rings, Modules, and Algebras (39 papers), Advanced Topics in Algebra (25 papers) and Algebraic structures and combinatorial models (15 papers). Grigore Călugăreanu collaborates with scholars based in Romania, Kuwait and United States. Grigore Călugăreanu's co-authors include T. Y. Lam, Dorin Andrica, Yiqiang Zhou, П. А. Крылов, Horia F. Pop and Adrian Vasiu and has published in prestigious journals such as SHILAP Revista de lepidopterología, Linear Algebra and its Applications and Journal of Pure and Applied Algebra.

In The Last Decade

Grigore Călugăreanu

38 papers receiving 342 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Grigore Călugăreanu Romania	8	135	99	82	67	34	51	367
Andrew Rechnitzer Canada	15	24 0.2×	95 1.0×	68 0.8×	116 1.7×	77 2.3×	62	589
William F. Pohl United States	9	23 0.2×	86 0.9×	38 0.5×	35 0.5×	12 0.4×	14	245
P. A. B. Pleasants Australia	11	59 0.4×	62 0.6×	21 0.3×	192 2.9×	12 0.4×	28	414
Makoto Namba Japan	10	35 0.3×	177 1.8×	12 0.1×	37 0.6×	23 0.7×	27	404
Takashi Tsuboi Japan	13	32 0.2×	249 2.5×	10 0.1×	48 0.7×	57 1.7×	44	475
James A. Sellers United States	18	786 5.8×	72 0.7×	7 0.1×	66 1.0×	8 0.2×	115	970
C E Soteros Canada	13	2 0.0×	112 1.1×	84 1.0×	70 1.0×	87 2.6×	49	545
Morwen Thistlethwaite United States	15	13 0.1×	920 9.3×	47 0.6×	295 4.4×	20 0.6×	30	1.0k
Victor Mikhaylov Russia	12	7 0.1×	49 0.5×	21 0.3×	135 2.0×	19 0.6×	54	407
R. S. Hijjawi Jordan	13	4 0.0×	221 2.2×	55 0.7×	79 1.2×	95 2.8×	29	521

Countries citing papers authored by Grigore Călugăreanu

Since Specialization

Citations

This map shows the geographic impact of Grigore Călugăreanu's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Grigore Călugăreanu with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Grigore Călugăreanu more than expected).

Fields of papers citing papers by Grigore Călugăreanu

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Grigore Călugăreanu. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Grigore Călugăreanu. The network helps show where Grigore Călugăreanu may publish in the future.

Co-authorship network of co-authors of Grigore Călugăreanu

This figure shows the co-authorship network connecting the top 25 collaborators of Grigore Călugăreanu. A scholar is included among the top collaborators of Grigore Călugăreanu based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Grigore Călugăreanu. Grigore Călugăreanu is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Călugăreanu, Grigore, Horia F. Pop, & Adrian Vasiu. (2024). Matrix invertible extensions over commutative rings. Part I: General theory. Journal of Pure and Applied Algebra. 229(1). 107852–107852.

Călugăreanu, Grigore & Horia F. Pop. (2024). 2-Products of Idempotent by Nilpotent Matrices. Bulletin of the Iranian Mathematical Society.. 50(4).

Călugăreanu, Grigore. (2021). On Unit Fine Rings. Mediterranean Journal of Mathematics. 18(3). 2 indexed citations

Călugăreanu, Grigore. (2019). UNIQUELY FINE 2 X 2 INTEGRAL MATRICES. 20(1-2). 83–99. 1 indexed citations

Călugăreanu, Grigore. (2018). Tripotents: a class of strongly clean elements in rings. Analele Universităţii "Ovidius" Constanţa. Seria Matematică. 26(1). 69–80. 3 indexed citations

Călugăreanu, Grigore. (2018). Rings whose units commute with nilpotent elements. 60 (83)(2). 119–126. 3 indexed citations

Andrica, Dorin & Grigore Călugăreanu. (2017). Uniquely clean 2×2 invertible integral matrices. Studia Universitatis Babes-Bolyai Matematica. 62(3). 287–293. 1 indexed citations

Călugăreanu, Grigore, et al.. (2017). Strongly inert subgroups of abelian groups. Rendiconti del Seminario Matematico della Università di Padova. 138. 101–114. 2 indexed citations

Călugăreanu, Grigore, et al.. (2016). Sums of nilpotent matrices. Linear and Multilinear Algebra. 65(1). 67–78. 5 indexed citations

10.

Călugăreanu, Grigore. (2016). Some matrix completions over integral domains. Linear Algebra and its Applications. 507. 414–419. 3 indexed citations

11.

Călugăreanu, Grigore. (2015). UU rings. Carpathian Journal of Mathematics. 31(2). 157–163. 17 indexed citations

12.

Călugăreanu, Grigore. (2012). On Abelian Groups with commutative clean endomorphism rings. Annals of the Alexandru Ioan Cuza University - Mathematics. 58(2). 1 indexed citations

13.

Călugăreanu, Grigore, et al.. (2011). Modules with Dedekind Finite Endomorphism Rings. UWA Profiles and Research Repository (University of Western Australia). 76. 15–28.

14.

Călugăreanu, Grigore. (2011). Realization Theorems for Triangular Rings. Annals of the Alexandru Ioan Cuza University - Mathematics. 57(2). 223–227.

15.

Călugăreanu, Grigore, et al.. (2007). Every Abelian group is determined by a subgroup lattice. Studia Scientiarum Mathematicarum Hungarica. 45(1). 135–137. 2 indexed citations

16.

Călugăreanu, Grigore, et al.. (2006). Self-$c$-injective abelian groups. Rendiconti del Seminario Matematico della Università di Padova. 116. 193–203. 2 indexed citations

17.

Călugăreanu, Grigore. (2004). THE TOTAL NUMBER OF SUBGROUPS OF A FINITE ABELIAN GROUP. Scientiae mathematicae Japonicae. 60(1). 157–167. 8 indexed citations

18.

Călugăreanu, Grigore. (2002). ABELIAN GROUPS WITH SEMI-LOCAL ENDOMORPHISM RING. Communications in Algebra. 30(9). 4105–4111. 3 indexed citations

19.

Călugăreanu, Grigore, et al.. (1998). Exercises in Basic Ring Theory. CERN Document Server (European Organization for Nuclear Research). 1 indexed citations

20.

Călugăreanu, Grigore. (1961). On isotopy classes of three dimmensional knots and their invariants. Czechoslovak Mathematical Journal. 11(4). 588–625. 199 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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