J. Extremera

471 total citations
31 papers, 283 citations indexed

About

J. Extremera is a scholar working on Mathematical Physics, Algebra and Number Theory and Applied Mathematics. According to data from OpenAlex, J. Extremera has authored 31 papers receiving a total of 283 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Mathematical Physics, 26 papers in Algebra and Number Theory and 16 papers in Applied Mathematics. Recurrent topics in J. Extremera's work include Advanced Topics in Algebra (26 papers), Advanced Operator Algebra Research (25 papers) and Holomorphic and Operator Theory (12 papers). J. Extremera is often cited by papers focused on Advanced Topics in Algebra (26 papers), Advanced Operator Algebra Research (25 papers) and Holomorphic and Operator Theory (12 papers). J. Extremera collaborates with scholars based in Spain, Slovenia and Czechia. J. Extremera's co-authors include A. R. Villena, J. Alaminos, Matej Brešar and Alois Kufner and has published in prestigious journals such as Journal of Mathematical Analysis and Applications, Journal of Functional Analysis and Bulletin of the London Mathematical Society.

In The Last Decade

J. Extremera

28 papers receiving 269 citations

Peers

J. Extremera
J. Alaminos Spain
Hoger Ghahramani Iran
Niels Grønbæk Denmark
Nico Spronk Canada
Martin E. Walter United States
Étienne Matheron France
Zhong-Jin Ruan United States
Antonio Avilés Spain
Kunyu Guo China
Keiji Izuchi Japan
J. Alaminos Spain
J. Extremera
Citations per year, relative to J. Extremera J. Extremera (= 1×) peers J. Alaminos

Countries citing papers authored by J. Extremera

Since Specialization
Citations

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

Fields of papers citing papers by J. Extremera

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Extremera

This figure shows the co-authorship network connecting the top 25 collaborators of J. Extremera. A scholar is included among the top collaborators of J. Extremera 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 J. Extremera. J. Extremera 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.
Alaminos, J., Matej Brešar, J. Extremera, & A. R. Villena. (2020). ZERO JORDAN PRODUCT DETERMINED BANACH ALGEBRAS. Journal of the Australian Mathematical Society. 111(2). 145–158.
2.
Alaminos, J., Matej Brešar, J. Extremera, & A. R. Villena. (2019). Zero Lie product determined Banach algebras, II. Journal of Mathematical Analysis and Applications. 474(2). 1498–1511. 2 indexed citations
3.
Alaminos, J., et al.. (2018). Orthogonally additive polynomials on convolution algebras associated with a compact group. Journal of Mathematical Analysis and Applications. 472(1). 285–302. 2 indexed citations
4.
Alaminos, J., Matej Brešar, J. Extremera, & A. R. Villena. (2017). Zero Lie product determined Banach algebras. Studia Mathematica. 239(2). 189–199. 4 indexed citations
5.
Alaminos, J., J. Extremera, & A. R. Villena. (2016). Spectral preservers and approximate spectral preservers on operator algebras. Linear Algebra and its Applications. 496. 36–70. 3 indexed citations
6.
Alaminos, J., J. Extremera, & A. R. Villena. (2015). Orthogonality preserving linear maps on group algebras. Mathematical Proceedings of the Cambridge Philosophical Society. 158(3). 493–504. 14 indexed citations
7.
Alaminos, J., J. Extremera, & A. R. Villena. (2014). Orthogonally additive polynomials on Fourier algebras. Journal of Mathematical Analysis and Applications. 422(1). 72–83. 5 indexed citations
8.
Alaminos, J., et al.. (2013). Determining elements inC∗-algebras through spectral properties. Journal of Mathematical Analysis and Applications. 405(1). 214–219. 1 indexed citations
9.
Alaminos, J., J. Extremera, & A. R. Villena. (2011). Approximately spectrum-preserving maps. Journal of Functional Analysis. 261(1). 233–266. 10 indexed citations
10.
Alaminos, J., J. Extremera, & A. R. Villena. (2011). Metric versions of Herstein's theorems on Jordan maps. Linear and Multilinear Algebra. 60(8). 941–954. 2 indexed citations
11.
Alaminos, J., J. Extremera, & A. R. Villena. (2010). Zero product preserving maps on Banach algebras of Lipschitz functions. Journal of Mathematical Analysis and Applications. 369(1). 94–100. 6 indexed citations
12.
Alaminos, J., Matej Brešar, J. Extremera, & A. R. Villena. (2010). Characterizing Jordan maps on C*-algebras through zero products. Proceedings of the Edinburgh Mathematical Society. 53(3). 543–555. 36 indexed citations
13.
Alaminos, J., Matej Brešar, J. Extremera, & A. R. Villena. (2009). On bilinear maps determined by rank one idempotents. Linear Algebra and its Applications. 432(2-3). 738–743. 15 indexed citations
14.
Alaminos, J., J. Extremera, & A. R. Villena. (2009). Uniqueness of rotation invariant norms. Banach Journal of Mathematical Analysis. 3(1). 85–98. 1 indexed citations
15.
Alaminos, J., Matej Brešar, J. Extremera, & A. R. Villena. (2009). Maps preserving zero products. Studia Mathematica. 193(2). 131–159. 82 indexed citations
16.
Alaminos, J., J. Extremera, & A. R. Villena. (2008). A NOTE ON THE CONTINUITY OF OPERATORS INTERTWINING WITH CONVOLUTION OPERATORS. Taiwanese Journal of Mathematics. 12(2). 337–340.
17.
Alaminos, J., et al.. (2008). Zero product preserving maps on C1[0,1]. Journal of Mathematical Analysis and Applications. 347(2). 472–481. 10 indexed citations
18.
Alaminos, J., J. Extremera, & A. R. Villena. (2005). Applications of Kazhdan's property (T) to automatic continuity. Journal of Mathematical Analysis and Applications. 307(1). 167–180. 3 indexed citations
19.
Extremera, J.. (2004). Separating ideals in group algebras. The Quarterly Journal of Mathematics. 55(3). 303–305. 1 indexed citations
20.
Extremera, J., et al.. (2003). Uniqueness of norm on Lp(G) and C(G) when G is a compact group. Journal of Functional Analysis. 197(1). 212–227. 3 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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