K. C. ‎Sivakumar

469 total citations
78 papers, 270 citations indexed

About

K. C. ‎Sivakumar is a scholar working on Computational Theory and Mathematics, Numerical Analysis and Electrical and Electronic Engineering. According to data from OpenAlex, K. C. ‎Sivakumar has authored 78 papers receiving a total of 270 indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Computational Theory and Mathematics, 27 papers in Numerical Analysis and 27 papers in Electrical and Electronic Engineering. Recurrent topics in K. C. ‎Sivakumar's work include Matrix Theory and Algorithms (71 papers), Advanced Optimization Algorithms Research (26 papers) and graph theory and CDMA systems (25 papers). K. C. ‎Sivakumar is often cited by papers focused on Matrix Theory and Algorithms (71 papers), Advanced Optimization Algorithms Research (26 papers) and graph theory and CDMA systems (25 papers). K. C. ‎Sivakumar collaborates with scholars based in India, United States and Canada. K. C. ‎Sivakumar's co-authors include P. N. Shivakumar, K. Kamaraj, Panayiotis Psarrakos, Yang Zhang, S. H. Kulkarni, Michael J. Tsatsomeros, A.M. Encinas, Götz Trenkler, Judith J. McDonald and Susana Furtado and has published in prestigious journals such as SHILAP Revista de lepidopterología, Applied Mathematics and Computation and Annals of Operations Research.

In The Last Decade

K. C. ‎Sivakumar

68 papers receiving 253 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. C. ‎Sivakumar India	8	220	95	67	48	48	78	270
Susana Furtado Portugal	12	251 1.1×	90 0.9×	46 0.7×	61 1.3×	88 1.8×	68	328
D. E. Ferreyra Argentina	8	273 1.2×	80 0.8×	61 0.9×	67 1.4×	34 0.7×	27	290
Chun Yuan Deng China	11	246 1.1×	86 0.9×	63 0.9×	103 2.1×	68 1.4×	15	314
F‎. ‎E‎. Levis Argentina	8	231 1.1×	84 0.9×	117 1.7×	55 1.1×	28 0.6×	41	310
Zhongyun Liu China	10	213 1.0×	119 1.3×	83 1.2×	25 0.5×	31 0.6×	49	337
Nebojša Č. Dinčić Serbia	7	262 1.2×	69 0.7×	74 1.1×	119 2.5×	31 0.6×	14	285
Panayiotis Psarrakos Greece	12	379 1.7×	181 1.9×	145 2.2×	70 1.5×	39 0.8×	60	454
Xingping Sheng China	12	306 1.4×	206 2.2×	56 0.8×	20 0.4×	25 0.5×	27	351
Huihui Zhu China	12	330 1.5×	83 0.9×	78 1.2×	196 4.1×	33 0.7×	50	369
Michael Karow Germany	10	199 0.9×	117 1.2×	42 0.6×	27 0.6×	15 0.3×	20	277

Countries citing papers authored by K. C. ‎Sivakumar

Since Specialization

Citations

This map shows the geographic impact of K. C. ‎Sivakumar'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 K. C. ‎Sivakumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. C. ‎Sivakumar more than expected).

Fields of papers citing papers by K. C. ‎Sivakumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. C. ‎Sivakumar. 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 K. C. ‎Sivakumar. The network helps show where K. C. ‎Sivakumar may publish in the future.

Co-authorship network of co-authors of K. C. ‎Sivakumar

This figure shows the co-authorship network connecting the top 25 collaborators of K. C. ‎Sivakumar. A scholar is included among the top collaborators of K. C. ‎Sivakumar 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 K. C. ‎Sivakumar. K. C. ‎Sivakumar 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

Encinas, A.M., et al.. (2025). Tridiagonal generalized inverses of singular matrices possessing the triangle property. Linear Algebra and its Applications. 727. 268–307.

‎Sivakumar, K. C., et al.. (2025). The full P-vertex problem for unicyclic graphs. Linear Algebra and its Applications. 713. 74–89.

‎Sivakumar, K. C., et al.. (2024). Singular matrices possessing the triangle property. SHILAP Revista de lepidopterología. 12(1). 1 indexed citations

Encinas, A.M., et al.. (2024). Tridiagonal M-matrices whose group inverses are tridiagonal. Linear Algebra and its Applications. 708. 42–60. 2 indexed citations

‎Sivakumar, K. C., et al.. (2023). The Cayley transform of prevalent matrix classes. Linear Algebra and its Applications. 681. 1–20. 1 indexed citations

‎Sivakumar, K. C., et al.. (2022). New results on $M$-matrices, $H$-matrices and their inverse classes. Electronic Journal of Linear Algebra. 729–744. 2 indexed citations

‎Sivakumar, K. C., et al.. (2019). Inverse H-matrices. Linear Algebra and its Applications. 572. 1–31. 1 indexed citations

‎Sivakumar, K. C., et al.. (2017). An extension of a matrix inequality of Thompson. Linear Algebra and its Applications. 535. 151–159. 2 indexed citations

‎Sivakumar, K. C., et al.. (2015). Tucker's theorem for almost skew-symmetric matrices and a proof of Farkas' lemma. Linear Algebra and its Applications. 482. 55–69. 2 indexed citations

10.

‎Sivakumar, K. C., et al.. (2013). On Nonnegative Moore-Penrose Inverses of Perturbed Matrices. Journal of Applied Mathematics. 2013. 1–7. 1 indexed citations

11.

‎Sivakumar, K. C., et al.. (2013). ON POSITIVE INVERTIBILITY AND SPLITTINGS OF OPERATORS IN ORDERED BANACH SPACES. Владикавказский математический журнал. 15(1). 1 indexed citations

12.

‎Sivakumar, K. C., et al.. (2013). On inverse-positivity of sub-direct sums of matrices. Linear Algebra and its Applications. 439(6). 1670–1677. 4 indexed citations

13.

‎Sivakumar, K. C.. (2013). Nonnegative generalized inverses and certain subclasses of singular Q -matrices. Linear Algebra and its Applications. 438(12). 4701–4708. 2 indexed citations

14.

‎Sivakumar, K. C., et al.. (2012). Comparison theorems for a subclass of proper splittings of matrices. Applied Mathematics Letters. 25(12). 2339–2343. 12 indexed citations

15.

‎Sivakumar, K. C., et al.. (2011). Nonnegative generalized inverses and least elements of polyhedral sets. Linear Algebra and its Applications. 434(12). 2448–2455. 5 indexed citations

16.

‎Sivakumar, K. C., et al.. (2011). Generalizations of matrix monotonicity and their relationships with certain subclasses of proper splittings. Linear Algebra and its Applications. 436(7). 2604–2614. 6 indexed citations

17.

‎Sivakumar, K. C., et al.. (2011). Moore–Penrose inverse positivity of interval matrices. Linear Algebra and its Applications. 436(3). 571–578. 8 indexed citations

18.

Shivakumar, P. N. & K. C. ‎Sivakumar. (2008). A review of infinite matrices and their applications. Linear Algebra and its Applications. 430(4). 976–998. 22 indexed citations

19.

‎Sivakumar, K. C., et al.. (2007). Weak monotonicity of A versus {1}-inverses nonnegative on the range space of A. Linear Algebra and its Applications. 427(2-3). 171–175. 3 indexed citations

20.

‎Sivakumar, K. C., et al.. (2006). Generalized inverses of an invertible infinite matrix over a finite field. Linear Algebra and its Applications. 418(2-3). 468–479. 1 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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