Kai Rajala

554 total citations
42 papers, 252 citations indexed

About

Kai Rajala is a scholar working on Geometry and Topology, Applied Mathematics and Mathematical Physics. According to data from OpenAlex, Kai Rajala has authored 42 papers receiving a total of 252 indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Geometry and Topology, 34 papers in Applied Mathematics and 6 papers in Mathematical Physics. Recurrent topics in Kai Rajala's work include Analytic and geometric function theory (34 papers), Geometric Analysis and Curvature Flows (15 papers) and Nonlinear Partial Differential Equations (13 papers). Kai Rajala is often cited by papers focused on Analytic and geometric function theory (34 papers), Geometric Analysis and Curvature Flows (15 papers) and Nonlinear Partial Differential Equations (13 papers). Kai Rajala collaborates with scholars based in Finland, United States and Switzerland. Kai Rajala's co-authors include Pekka Koskela, Nageswari Shanmugalingam, Jani Onninen, Stanislav Hencl, Pietro Poggi‐Corradini, Xiao Zhong, Stephen Keith, Stefan Wenger, Leonid V. Kovalev and Juha Heinonen and has published in prestigious journals such as Archive for Rational Mechanics and Analysis, Inventiones mathematicae and Journal of Functional Analysis.

In The Last Decade

Kai Rajala

37 papers receiving 221 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kai Rajala Finland	8	215	194	47	42	11	42	252
Janne Kauhanen Finland	5	218 1.0×	194 1.0×	41 0.9×	62 1.5×	9 0.8×	12	286
Rabah Souam France	8	251 1.2×	186 1.0×	16 0.3×	41 1.0×	59 5.4×	19	269
Eduard Yakubov Israel	13	591 2.7×	497 2.6×	84 1.8×	84 2.0×	7 0.6×	36	628
Caterina Stoppato Italy	11	354 1.6×	111 0.6×	31 0.7×	46 1.1×	3 0.3×	21	370
Enrico Pasqualetto Italy	9	193 0.9×	78 0.4×	65 1.4×	46 1.1×	31 2.8×	36	209
Éric Toubiana France	11	318 1.5×	270 1.4×	20 0.4×	63 1.5×	41 3.7×	32	363
Séverine Rigot France	7	156 0.7×	77 0.4×	43 0.9×	37 0.9×	31 2.8×	16	173
Francisco Martín Spain	11	287 1.3×	231 1.2×	26 0.6×	29 0.7×	24 2.2×	41	296
Alexey Karapetyants Russia	10	304 1.4×	67 0.3×	124 2.6×	9 0.2×	6 0.5×	59	331
Dong-Ho Tsai Taiwan	11	240 1.1×	135 0.7×	69 1.5×	39 0.9×	29 2.6×	37	261

Countries citing papers authored by Kai Rajala

Since Specialization

Citations

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

Fields of papers citing papers by Kai Rajala

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kai Rajala

This figure shows the co-authorship network connecting the top 25 collaborators of Kai Rajala. A scholar is included among the top collaborators of Kai Rajala 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 Kai Rajala. Kai Rajala 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

Rajala, Kai. (2025). Rigid circle domains with non‐removable boundaries. Proceedings of the London Mathematical Society. 131(3).

Rajala, Kai, et al.. (2024). Mappings of finite distortion on metric surfaces. Mathematische Annalen. 391(2). 2479–2507.

Rajala, Kai, et al.. (2021). Quasisymmetric Koebe uniformization with weak metric doubling measures. Illinois Journal of Mathematics. 65(4). 2 indexed citations

Rajala, Kai, et al.. (2017). Quasispheres and metric doubling measures. Proceedings of the American Mathematical Society. 146(7). 2973–2984. 4 indexed citations

Rajala, Kai. (2016). Uniformization of two-dimensional metric surfaces. Inventiones mathematicae. 207(3). 1301–1375. 27 indexed citations

Keith, Stephen & Kai Rajala. (2015). A remark on Poincare inequalities on metric measure spaces. ANU Open Research (Australian National University).

Rajala, Kai, et al.. (2015). Exponential integrability of mappings of finite distortion. Revista Matemática Iberoamericana. 31(4). 1459–1476. 1 indexed citations

Rajala, Kai & Stefan Wenger. (2013). An upper gradient approach to weakly differentiable cochains. Journal de Mathématiques Pures et Appliquées. 100(6). 868–906. 3 indexed citations

Moscariello, Gioconda, Antonia Passarelli di Napoli, & Kai Rajala. (2013). Mappings of finite distortion and asymmetry of domains. Annales Academiae Scientiarum Fennicae Mathematica. 38. 367–375. 1 indexed citations

10.

Rajala, Kai & Xiao Zhong. (2012). Bonnesenʼs inequality for John domains inRn. Journal of Functional Analysis. 263(11). 3617–3640. 5 indexed citations

11.

Rajala, Kai. (2011). Reshetnyak's Theorem and The Inner Distortion. Pure and Applied Mathematics Quarterly. 7(2). 411–424. 6 indexed citations

12.

Onninen, Jani & Kai Rajala. (2009). Quasiregular mappings to generalized manifolds. Journal d Analyse Mathématique. 109(1). 33–79. 16 indexed citations

13.

Rajala, Kai, Leonid V. Kovalev, & Jani Onninen. (2009). Invertibility of Sobolev mappings under minimal hypotheses. Annales de l Institut Henri Poincaré C Analyse Non Linéaire. 27(2). 517–528. 6 indexed citations

14.

Poggi‐Corradini, Pietro, et al.. (2008). Sharp Exponential Integrability for Traces of Monotone Sobolev Functions. Nagoya Mathematical Journal. 192. 137–149. 4 indexed citations

15.

Rajala, Kai. (2005). The local homeomorphism property of spatial quasiregular mappings with distortion close to one. Geometric and Functional Analysis. 15(5). 1100–1127. 13 indexed citations

16.

Rajala, Kai. (2004). Mappings of finite distortion: Removable singularities for locally homeomorphic mappings. Proceedings of the American Mathematical Society. 132(11). 3251–3258. 20 indexed citations

17.

Rajala, Kai. (2004). MAPPINGS OF FINITE DISTORTION: REMOVABILITY OF CANTOR SETS. 29(2). 269–281. 5 indexed citations

18.

Rajala, Kai. (2004). A lower bound for the Bloch radius of 𝐾-quasiregular mappings. Proceedings of the American Mathematical Society. 132(9). 2593–2601. 4 indexed citations

19.

Koskela, Pekka, Kai Rajala, & Nageswari Shanmugalingam. (2003). Lipschitz continuity of Cheeger-harmonic functions in metric measure spaces. Journal of Functional Analysis. 202(1). 147–173. 40 indexed citations

20.

Koskela, Pekka & Kai Rajala. (2003). Mappings of finite distortion: Removable singularities. Israel Journal of Mathematics. 136(1). 269–283. 20 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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