G. Harder

1.4k total citations
14 papers, 741 citations indexed

About

G. Harder is a scholar working on Geometry and Topology, Mathematical Physics and Discrete Mathematics and Combinatorics. According to data from OpenAlex, G. Harder has authored 14 papers receiving a total of 741 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Geometry and Topology, 9 papers in Mathematical Physics and 5 papers in Discrete Mathematics and Combinatorics. Recurrent topics in G. Harder's work include Advanced Algebra and Geometry (7 papers), Algebraic Geometry and Number Theory (5 papers) and Finite Group Theory Research (5 papers). G. Harder is often cited by papers focused on Advanced Algebra and Geometry (7 papers), Algebraic Geometry and Number Theory (5 papers) and Finite Group Theory Research (5 papers). G. Harder collaborates with scholars based in Germany, India and United States. G. Harder's co-authors include M. S. Narasimhan, Mark Goresky and Robert MacPherson and has published in prestigious journals such as Annals of Mathematics, Inventiones mathematicae and Mathematische Annalen.

In The Last Decade

G. Harder

14 papers receiving 583 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
G. Harder Germany	12	656	618	158	139	35	14	741
Ulrich Stuhler Germany	9	418 0.6×	425 0.7×	103 0.7×	109 0.8×	17 0.5×	23	485
Gérard Laumon France	12	720 1.1×	647 1.0×	219 1.4×	111 0.8×	42 1.2×	32	805
Glenn Stevens United States	13	539 0.8×	506 0.8×	252 1.6×	93 0.7×	42 1.2×	23	628
M. Raynaud France	7	595 0.9×	377 0.6×	210 1.3×	57 0.4×	130 3.7×	7	638
Reinhardt Kiehl Germany	12	421 0.6×	286 0.5×	148 0.9×	53 0.4×	66 1.9×	15	496
Jean-Jacques Sansuc France	12	855 1.3×	608 1.0×	263 1.7×	121 0.9×	171 4.9×	17	922
Werner Lütkebohmert Germany	8	562 0.9×	397 0.6×	117 0.7×	46 0.3×	105 3.0×	16	585
Allan J. Silberger United States	10	295 0.4×	330 0.5×	87 0.6×	128 0.9×	28 0.8×	32	397
Markus Rost Germany	11	794 1.2×	608 1.0×	309 2.0×	191 1.4×	57 1.6×	20	861
Bruno Kahn France	13	483 0.7×	389 0.6×	133 0.8×	80 0.6×	45 1.3×	66	521

Countries citing papers authored by G. Harder

Since Specialization

Citations

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

Fields of papers citing papers by G. Harder

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of G. Harder

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

All Works

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14 of 14 papers shown

1.

Goresky, Mark, et al.. (2002). Local Intersection Cohomology of Baily–Borel Compactifications. Compositio Mathematica. 134(3). 243–268. 2 indexed citations

2.

Goresky, Mark, G. Harder, & Robert MacPherson. (1994). Weighted cohomology. Inventiones mathematicae. 116(1). 139–213. 18 indexed citations

3.

Harder, G.. (1987). Eisenstein cohomology of arithmetic groups. The case GL2. Inventiones mathematicae. 89(1). 37–118. 99 indexed citations

4.

Harder, G.. (1987). Eisensteinkohomologie f�r Gruppen vom TypGU(2, 1). Mathematische Annalen. 278(1-4). 563–592. 3 indexed citations

5.

Harder, G.. (1977). Die KohomologieS-arithmetischer Gruppen �ber Funktionenk�rpern. Inventiones mathematicae. 42(1). 135–175. 26 indexed citations

6.

Harder, G. & M. S. Narasimhan. (1975). On the cohomology groups of moduli spaces of vector bundles on curves. Mathematische Annalen. 212(3). 215–248. 223 indexed citations

7.

Harder, G.. (1975). Über die Galoiskohomologie halbeinfacher algebraischer Gruppen. III.. Journal für die reine und angewandte Mathematik (Crelles Journal). 1975(274-275). 125–138. 34 indexed citations

8.

Harder, G.. (1974). Chevalley Groups Over Function Fields and Automorphic Forms. Annals of Mathematics. 100(2). 249–249. 56 indexed citations

9.

Harder, G.. (1971). A Gauss-Bonnet formula for discrete arithmetically defined groups. Annales Scientifiques de l École Normale Supérieure. 4(3). 409–455. 64 indexed citations

10.

Harder, G.. (1969). Minkowskische Reduktionstheorie �ber Funktionenk�rpern. Inventiones mathematicae. 7(1). 33–54. 49 indexed citations

11.

Harder, G.. (1968). Halbeinfache Gruppenschemata �ber vollst�ndigen Kurven. Inventiones mathematicae. 6(2). 107–149. 33 indexed citations

12.

Harder, G.. (1967). Halbeinfache Gruppenschemata �ber Dedekindringen. Inventiones mathematicae. 4(3). 165–191. 62 indexed citations

13.

Harder, G.. (1966). �ber die Galoiskohomologie halbeinfacher Matrizengruppen. II. Mathematische Zeitschrift. 92(5). 396–415. 46 indexed citations

14.

Harder, G.. (1965). �ber die Galoiskohomologie halbeinfacher Matrizengruppen. I. Mathematische Zeitschrift. 90(5). 404–428. 26 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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