Panayiotis Psarrakos

693 total citations
60 papers, 454 citations indexed

About

Panayiotis Psarrakos is a scholar working on Computational Theory and Mathematics, Numerical Analysis and Algebra and Number Theory. According to data from OpenAlex, Panayiotis Psarrakos has authored 60 papers receiving a total of 454 indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Computational Theory and Mathematics, 32 papers in Numerical Analysis and 15 papers in Algebra and Number Theory. Recurrent topics in Panayiotis Psarrakos's work include Matrix Theory and Algorithms (58 papers), Advanced Optimization Algorithms Research (27 papers) and Advanced Topics in Algebra (15 papers). Panayiotis Psarrakos is often cited by papers focused on Matrix Theory and Algorithms (58 papers), Advanced Optimization Algorithms Research (27 papers) and Advanced Topics in Algebra (15 papers). Panayiotis Psarrakos collaborates with scholars based in Greece, United States and Canada. Panayiotis Psarrakos's co-authors include John Maroulas, Michael J. Tsatsomeros, Peter Lancaster, Hiroshi Nakazato, Νικόλαος Παπαθανασίου, Mao-Ting Chien, K. C. ‎Sivakumar, P. N. Shivakumar, Lyonell Boulton and Judith J. McDonald and has published in prestigious journals such as Mathematics of Computation, Journal of Mathematical Analysis and Applications and Applied Mathematics and Computation.

In The Last Decade

Panayiotis Psarrakos

56 papers receiving 430 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Panayiotis Psarrakos Greece 12 379 181 145 70 67 60 454
Julio Moro Spain 13 340 0.9× 164 0.9× 81 0.6× 67 1.0× 65 1.0× 30 439
L. Lerer Israel 12 330 0.9× 129 0.7× 163 1.1× 51 0.7× 105 1.6× 50 516
F‎. ‎E‎. Levis Argentina 8 231 0.6× 84 0.5× 117 0.8× 55 0.8× 25 0.4× 41 310
K. C. ‎Sivakumar India 8 220 0.6× 95 0.5× 67 0.5× 48 0.7× 24 0.4× 78 270
Chunyuan Deng China 13 462 1.2× 119 0.7× 166 1.1× 213 3.0× 29 0.4× 57 514
Chun Yuan Deng China 11 246 0.6× 86 0.5× 63 0.4× 103 1.5× 22 0.3× 15 314
Zhongyun Liu China 10 213 0.6× 119 0.7× 83 0.6× 25 0.4× 35 0.5× 49 337
Xuefeng Duan China 11 248 0.7× 126 0.7× 103 0.7× 37 0.5× 26 0.4× 45 387
Hebing Wu China 11 398 1.1× 220 1.2× 77 0.5× 49 0.7× 30 0.4× 16 421
D. E. Ferreyra Argentina 8 273 0.7× 80 0.4× 61 0.4× 67 1.0× 24 0.4× 27 290

Countries citing papers authored by Panayiotis Psarrakos

Since Specialization
Citations

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

Fields of papers citing papers by Panayiotis Psarrakos

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Panayiotis Psarrakos. 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 Panayiotis Psarrakos. The network helps show where Panayiotis Psarrakos may publish in the future.

Co-authorship network of co-authors of Panayiotis Psarrakos

This figure shows the co-authorship network connecting the top 25 collaborators of Panayiotis Psarrakos. A scholar is included among the top collaborators of Panayiotis Psarrakos 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 Panayiotis Psarrakos. Panayiotis Psarrakos is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Psarrakos, Panayiotis, et al.. (2024). Eigenvalue characterization of some structured matrix pencils under linear perturbation. Electronic Journal of Linear Algebra. 40. 274–298.
2.
Psarrakos, Panayiotis, et al.. (2023). On the shell and the shell-extremal eigenvalues of a square matrix. Linear Algebra and its Applications. 665. 354–381. 1 indexed citations
3.
Psarrakos, Panayiotis, et al.. (2023). Homotopic deviation theory for regular matrix pencils. Linear and Multilinear Algebra. 72(9). 1470–1496. 1 indexed citations
4.
Psarrakos, Panayiotis, et al.. (2019). On Householder sets for matrix polynomials. Linear Algebra and its Applications. 585. 105–126.
5.
Psarrakos, Panayiotis, et al.. (2018). On the distance from a matrix polynomial to matrix polynomials with some prescribed eigenvalues. Linear Algebra and its Applications. 544. 158–185. 2 indexed citations
6.
Psarrakos, Panayiotis, et al.. (2017). Birkhoff–James ε-orthogonality sets of vectors and vector-valued polynomials. Journal of Mathematical Analysis and Applications. 454(1). 59–78.
7.
Psarrakos, Panayiotis. (2012). Distance bounds for prescribed multiple eigenvalues of matrix polynomials. Linear Algebra and its Applications. 436(11). 4107–4119. 4 indexed citations
8.
Psarrakos, Panayiotis, et al.. (2011). Birkhoff–James approximate orthogonality sets and numerical ranges. Linear Algebra and its Applications. 434(9). 2089–2108. 5 indexed citations
9.
Παπαθανασίου, Νικόλαος & Panayiotis Psarrakos. (2008). The distance from a matrix polynomial to matrix polynomials with a prescribed multiple eigenvalue. Linear Algebra and its Applications. 429(7). 1453–1477. 9 indexed citations
10.
Psarrakos, Panayiotis & Michael J. Tsatsomeros. (2006). Bounds for Levinger’s function of nonnegative almost skew-symmetric matrices. Linear Algebra and its Applications. 416(2-3). 759–772. 2 indexed citations
11.
Psarrakos, Panayiotis. (2006). A distance bound for pseudospectra of matrix polynomials. Applied Mathematics Letters. 20(5). 499–504. 2 indexed citations
12.
Maroulas, John, Panayiotis Psarrakos, & Michael J. Tsatsomeros. (2002). Perron–Frobenius type results on the numerical range. Linear Algebra and its Applications. 348(1-3). 49–62. 32 indexed citations
13.
Farenick, Douglas & Panayiotis Psarrakos. (2002). A triangle inequality in Hilbert modules over matrix algebras. Linear Algebra and its Applications. 341(1-3). 57–67. 3 indexed citations
14.
Psarrakos, Panayiotis. (2002). On the m-th roots of a complex matrix. Electronic Journal of Linear Algebra. 9. 20 indexed citations
15.
Psarrakos, Panayiotis. (2002). Definite triples of Hermitian matrices and matrix polynomials. Journal of Computational and Applied Mathematics. 151(1). 39–58. 5 indexed citations
16.
Chien, Mao-Ting, Hiroshi Nakazato, & Panayiotis Psarrakos. (2002). Point equation of the boundary of the numerical range of a matrix polynomial. Linear Algebra and its Applications. 347(1-3). 205–217. 11 indexed citations
17.
Kirkland, Steve, Panayiotis Psarrakos, & Michael J. Tsatsomeros. (2001). On the location of the spectrum of hypertournament matrices. Linear Algebra and its Applications. 323(1-3). 37–49. 7 indexed citations
18.
Maroulas, John & Panayiotis Psarrakos. (2000). On factorization of matrix polynomials. Linear Algebra and its Applications. 304(1-3). 131–139. 11 indexed citations
19.
Maroulas, John & Panayiotis Psarrakos. (1998). On the connectedness of numerical range of matrix polynomials. Linear Algebra and its Applications. 280(2-3). 97–108. 10 indexed citations
20.
Maroulas, John & Panayiotis Psarrakos. (1997). The boundary of the numerical range of matrix polynomials. Linear Algebra and its Applications. 267. 101–111. 27 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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