Reyer Sjamaar

1.5k total citations
27 papers, 632 citations indexed

About

Reyer Sjamaar is a scholar working on Geometry and Topology, Mathematical Physics and Statistical and Nonlinear Physics. According to data from OpenAlex, Reyer Sjamaar has authored 27 papers receiving a total of 632 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Geometry and Topology, 22 papers in Mathematical Physics and 3 papers in Statistical and Nonlinear Physics. Recurrent topics in Reyer Sjamaar's work include Advanced Algebra and Geometry (18 papers), Homotopy and Cohomology in Algebraic Topology (15 papers) and Geometric and Algebraic Topology (11 papers). Reyer Sjamaar is often cited by papers focused on Advanced Algebra and Geometry (18 papers), Homotopy and Cohomology in Algebraic Topology (15 papers) and Geometric and Algebraic Topology (11 papers). Reyer Sjamaar collaborates with scholars based in United States and Canada. Reyer Sjamaar's co-authors include Eugene Lerman, Eckhard Meinrenken, Arkady Berenstein, Victor Guillemin, Jacques Hurtubise, Lisa C. Jeffrey and Megumi Harada and has published in prestigious journals such as Annals of Mathematics, Advances in Mathematics and Pacific Journal of Mathematics.

In The Last Decade

Reyer Sjamaar

24 papers receiving 540 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Reyer Sjamaar United States	10	473	467	127	83	82	27	632
Yael Karshon Canada	14	397 0.8×	473 1.0×	105 0.8×	75 0.9×	80 1.0×	40	610
Peter Slodowy Germany	9	400 0.8×	438 0.9×	161 1.3×	77 0.9×	60 0.7×	16	559
Jiro Sekiguchi Japan	11	273 0.6×	279 0.6×	150 1.2×	103 1.2×	64 0.8×	45	445
Ludmil Katzarkov United States	15	479 1.0×	664 1.4×	103 0.8×	85 1.0×	57 0.7×	61	712
Yury A. Neretin Russia	13	399 0.8×	207 0.4×	141 1.1×	57 0.7×	145 1.8×	83	537
Paul Sally United States	15	414 0.9×	329 0.7×	156 1.2×	60 0.7×	93 1.1×	35	519
Tomoyoshi Ibukiyama Japan	14	526 1.1×	489 1.0×	286 2.3×	37 0.4×	56 0.7×	66	708
Jay Jorgenson United States	12	278 0.6×	219 0.5×	189 1.5×	36 0.4×	107 1.3×	62	405
Michèle Audin France	11	320 0.7×	516 1.1×	36 0.3×	111 1.3×	160 2.0×	36	635
Jonathan Weitsman United States	12	327 0.7×	355 0.8×	74 0.6×	73 0.9×	45 0.5×	42	497

Countries citing papers authored by Reyer Sjamaar

Since Specialization

Citations

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

Fields of papers citing papers by Reyer Sjamaar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Reyer Sjamaar

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Sjamaar, Reyer, et al.. (2024). Riemannian foliations and geometric quantization. Journal of Geometry and Physics. 198. 105133–105133.

Sjamaar, Reyer, et al.. (2023). Symplectic reduction and a Darboux–Moser–Weinstein theorem for Lie algebroids. Pure and Applied Mathematics Quarterly. 19(4). 2067–2131.

Sjamaar, Reyer, et al.. (2021). Log Symplectic Manifolds and [Q,R]=0. International Mathematics Research Notices. 2022(18). 14034–14066. 1 indexed citations

Sjamaar, Reyer, et al.. (2020). Cohomological localization for transverse Lie algebra actions on Riemannian foliations. Journal of Geometry and Physics. 158. 103887–103887. 5 indexed citations

Sjamaar, Reyer, et al.. (2012). Character formulæ and GKRS multiplets in equivariant K-theory. Selecta Mathematica. 19(1). 49–95.

Sjamaar, Reyer, et al.. (2008). Torsion and Abelianization in Equivariant Cohomology. Transformation Groups. 13(3-4). 585–615. 6 indexed citations

Guillemin, Victor & Reyer Sjamaar. (2006). Convexity Properties of Hamiltonian Group Actions. 16 indexed citations

Hurtubise, Jacques, Lisa C. Jeffrey, & Reyer Sjamaar. (2006). Group-valued implosion and parabolic structures. American Journal of Mathematics. 128(1). 167–214. 9 indexed citations

Guillemin, Victor & Reyer Sjamaar. (2006). Convexity Theorems for Varieties Invariant under a Borel Subgroup. Pure and Applied Mathematics Quarterly. 2(3). 637–653. 6 indexed citations

10.

Hurtubise, Jacques, Lisa C. Jeffrey, & Reyer Sjamaar. (2005). Moduli of Framed Parabolic Sheaves. Annals of Global Analysis and Geometry. 28(4). 351–370. 4 indexed citations

11.

Sjamaar, Reyer. (2005). A de Rham theorem for symplectic quotients. Pacific Journal of Mathematics. 220(1). 153–166. 4 indexed citations

12.

Sjamaar, Reyer, et al.. (2004). Equivariant symplectic Hodge theory and the dGδ-lemma. Journal of Symplectic Geometry. 2(2). 267–278. 4 indexed citations

13.

Guillemin, Victor, et al.. (2002). Symplectic Implosion. Transformation Groups. 7(2). 155–185. 19 indexed citations

14.

Berenstein, Arkady & Reyer Sjamaar. (2000). Coadjoint orbits, moment polytopes, and the Hilbert-Mumford criterion. Journal of the American Mathematical Society. 13(2). 433–466. 49 indexed citations

15.

Meinrenken, Eckhard & Reyer Sjamaar. (1999). SINGULAR REDUCTION AND QUANTIZATION. Topology. 38(4). 699–762. 70 indexed citations

16.

Berenstein, Arkady & Reyer Sjamaar. (1998). Projections of Coadjoint Orbits and the Hilbert-Mumford Criterion. arXiv (Cornell University). 1 indexed citations

17.

Sjamaar, Reyer. (1998). Convexity Properties of the Moment Mapping Re-examined. Advances in Mathematics. 138(1). 46–91. 53 indexed citations

18.

Sjamaar, Reyer. (1995). Holomorphic Slices, Symplectic Reduction and Multiplicities of Representations. Annals of Mathematics. 141(1). 87–87. 68 indexed citations

19.

Sjamaar, Reyer. (1992). L(2)-cohomology of orbit spaces. Topology and its Applications. 45(1). 1–11. 2 indexed citations

20.

Sjamaar, Reyer & Eugene Lerman. (1991). Stratified Symplectic Spaces and Reduction. Annals of Mathematics. 134(2). 375–375. 238 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.

Explore authors with similar magnitude of impact