Aymen Ammar

650 total citations
58 papers, 289 citations indexed

About

Aymen Ammar is a scholar working on Applied Mathematics, Computational Theory and Mathematics and Mathematical Physics. According to data from OpenAlex, Aymen Ammar has authored 58 papers receiving a total of 289 indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Applied Mathematics, 37 papers in Computational Theory and Mathematics and 32 papers in Mathematical Physics. Recurrent topics in Aymen Ammar's work include Holomorphic and Operator Theory (32 papers), Matrix Theory and Algorithms (30 papers) and Spectral Theory in Mathematical Physics (19 papers). Aymen Ammar is often cited by papers focused on Holomorphic and Operator Theory (32 papers), Matrix Theory and Algorithms (30 papers) and Spectral Theory in Mathematical Physics (19 papers). Aymen Ammar collaborates with scholars based in Tunisia, France and Spain. Aymen Ammar's co-authors include Aref Jeribi, Teresa Álvarez, S. Fakhfakh and Toka Diagana and has published in prestigious journals such as SHILAP Revista de lepidopterología, Mathematical Methods in the Applied Sciences and Acta Applicandae Mathematicae.

In The Last Decade

Aymen Ammar

49 papers receiving 273 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Aymen Ammar Tunisia 10 214 203 170 62 23 58 289
Maher Mnif Tunisia 10 279 1.3× 189 0.9× 178 1.0× 78 1.3× 26 1.1× 50 348
Caixing Gu United States 12 278 1.3× 79 0.4× 135 0.8× 114 1.8× 9 0.4× 54 310
Qingxiang Xu China 9 169 0.8× 207 1.0× 112 0.7× 63 1.0× 9 0.4× 39 270
Bilel Krichen Tunisia 9 199 0.9× 77 0.4× 93 0.5× 50 0.8× 17 0.7× 52 240
Pedro J. Miana Spain 9 248 1.2× 38 0.2× 147 0.9× 40 0.6× 31 1.3× 57 296
David P. Kimsey Israel 10 260 1.2× 83 0.4× 47 0.3× 72 1.2× 5 0.2× 28 292
Takahiko Nakazi Japan 10 327 1.5× 72 0.4× 154 0.9× 108 1.7× 8 0.3× 83 410
Dan Timotin Romania 10 317 1.5× 66 0.3× 195 1.1× 122 2.0× 6 0.3× 57 365
Teresa Bermúdez Spain 12 439 2.1× 88 0.4× 370 2.2× 219 3.5× 20 0.9× 34 508
Hendrik de Snoo Netherlands 3 171 0.8× 113 0.6× 161 0.9× 34 0.5× 11 0.5× 3 265

Countries citing papers authored by Aymen Ammar

Since Specialization
Citations

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

Fields of papers citing papers by Aymen Ammar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Aymen Ammar

This figure shows the co-authorship network connecting the top 25 collaborators of Aymen Ammar. A scholar is included among the top collaborators of Aymen Ammar 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 Aymen Ammar. Aymen Ammar 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.
Ammar, Aymen, et al.. (2023). Some properties of the condition pseudospectrum of multivalued linear operators. Filomat. 37(5). 1625–1634.
2.
Ammar, Aymen, et al.. (2021). A new spectral approach in the matrix algebra: C-determinant pseudospectrum. Izvestiya Vysshikh Uchebnykh Zavedenii Matematika. 3–11. 1 indexed citations
3.
Ammar, Aymen, et al.. (2021). A Characterization of the Essential Spectra of $$2\times 2$$ Block Matrices of Linear Relations. Bulletin of the Iranian Mathematical Society.. 48(5). 2463–2485. 1 indexed citations
4.
Ammar, Aymen, et al.. (2020). The condition pseudospectrum of a operator pencil. Asian-European Journal of Mathematics. 14(4). 2150057–2150057. 1 indexed citations
5.
Ammar, Aymen, et al.. (2020). Some description of essential structured approximate and defect pseudospectrum. Korean Journal of Mathematics. 28(4). 673–697.
6.
Ammar, Aymen, et al.. (2020). PseudoS-spectrum in a right quaternionic Hilbert space. Linear and Multilinear Algebra. 70(4). 581–605. 3 indexed citations
7.
Ammar, Aymen, et al.. (2019). Browder essential approximate pseudospectrum and defect pseudospectrum on a Banach space. SHILAP Revista de lepidopterología. 34(1). 29–40. 2 indexed citations
8.
Ammar, Aymen, et al.. (2019). The $$\varepsilon $$-pseudospectra and the essential $$\varepsilon $$-pseudospectra of linear relations. Journal of Pseudo-Differential Operators and Applications. 11(2). 879–915. 2 indexed citations
9.
Ammar, Aymen, et al.. (2019). Pseudospectra in a non-Archimedean Banach space and essential pseudospectra in Eω. Filomat. 33(12). 3961–3976. 4 indexed citations
10.
Ammar, Aymen & Aref Jeribi. (2018). The Essential Pseudo-Spectra of a Sequence of Linear Operators. Complex Analysis and Operator Theory. 12(3). 835–848. 4 indexed citations
11.
Ammar, Aymen, et al.. (2018). Demicompact and k-D-Set-contractive Multivalued Linear Operators. Mediterranean Journal of Mathematics. 15(2). 3 indexed citations
12.
Ammar, Aymen, et al.. (2017). The Essential Spectrum of a Sequence of Linear Operators in Banach Spaces. SHILAP Revista de lepidopterología. 1 indexed citations
13.
Ammar, Aymen. (2016). Some properties of the Wolf and Weyl essential spectra of a sequence of linear operators ν-convergent. Indagationes Mathematicae. 28(2). 424–435. 1 indexed citations
14.
Ammar, Aymen, S. Fakhfakh, & Aref Jeribi. (2016). Stability of the essential spectrum of the diagonally and off-diagonally dominant block matrix linear relations. Journal of Pseudo-Differential Operators and Applications. 7(4). 493–509. 10 indexed citations
15.
Ammar, Aymen. (2016). A Characterization of Some Subsets of Essential Spectra of a Multivalued Linear Operator. Complex Analysis and Operator Theory. 11(1). 175–196. 6 indexed citations
16.
Ammar, Aymen. (2015). SOME PROPERTIES OF THE M−ESSENTIAL SPECTRA OF CLOSED LINEAR OPERATOR ON A BANACH SPACE. 7(1). 15–28. 1 indexed citations
17.
Ammar, Aymen, Toka Diagana, & Aref Jeribi. (2015). Perturbations of Fredholm linear relations in Banach spaces with application to <mml:math altimg="si1.gif" display="inline" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mn>3</mml:mn><mml:mo>×</mml:mo><mml:mn>3</mml:mn></mml:math>-block matrices of linear relations. SHILAP Revista de lepidopterología. 22(1). 59–76. 7 indexed citations
18.
Ammar, Aymen, et al.. (2015). A note on the essential pseudospectra and application. Linear and Multilinear Algebra. 64(8). 1474–1483. 11 indexed citations
19.
Ammar, Aymen & Aref Jeribi. (2015). The Weyl essential spectrum of a sequence of linear operators in Banach spaces. Indagationes Mathematicae. 27(1). 282–295. 5 indexed citations
20.
Ammar, Aymen & Aref Jeribi. (2013). A Characterization of the Essential Pseudospectra and Application to a Transport Equation. Extracta Mathematicae. 28(1). 95–112. 11 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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