David Ullrich

574 total citations
37 papers, 284 citations indexed

About

David Ullrich is a scholar working on Applied Mathematics, Geometry and Topology and Computational Theory and Mathematics. According to data from OpenAlex, David Ullrich has authored 37 papers receiving a total of 284 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Applied Mathematics, 9 papers in Geometry and Topology and 9 papers in Computational Theory and Mathematics. Recurrent topics in David Ullrich's work include Holomorphic and Operator Theory (15 papers), Advanced Mathematical Modeling in Engineering (7 papers) and Analytic and geometric function theory (4 papers). David Ullrich is often cited by papers focused on Holomorphic and Operator Theory (15 papers), Advanced Mathematical Modeling in Engineering (7 papers) and Analytic and geometric function theory (4 papers). David Ullrich collaborates with scholars based in United States, Czechia and Slovakia. David Ullrich's co-authors include Wade Ramey, Joel H. Shapiro, W. G. Cochran, David A. Stegenga, Boo Rim Choe, Dale E. Alspach, Martin Čaprnda, Ľudovít Gašpar, Peter Kružliak and Katarína Gazdíková and has published in prestigious journals such as Sustainability, Transactions of the American Mathematical Society and Neuroscience Letters.

In The Last Decade

David Ullrich

32 papers receiving 237 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
David Ullrich United States	10	227	96	67	48	29	37	284
Ludwig Reich Austria	9	153 0.7×	106 1.1×	87 1.3×	38 0.8×	9 0.3×	64	255
Daniele Morbidelli Italy	11	250 1.1×	63 0.7×	96 1.4×	107 2.2×	14 0.5×	27	272
S. Berhanu United States	10	254 1.1×	150 1.6×	139 2.1×	70 1.5×	14 0.5×	47	330
Hans Münzner Germany	5	202 0.9×	195 2.0×	68 1.0×	33 0.7×	13 0.4×	12	289
Senlin Wu China	9	196 0.9×	106 1.1×	72 1.1×	56 1.2×	8 0.3×	59	293
Nilson C. Bernardes Brazil	10	131 0.6×	105 1.1×	226 3.4×	55 1.1×	13 0.4×	29	275
Bun Wong United States	10	194 0.9×	147 1.5×	98 1.5×	57 1.2×	6 0.2×	22	262
Takahiko Nakazi Japan	10	327 1.4×	89 0.9×	154 2.3×	72 1.5×	8 0.3×	83	410
G. I. Gaudry Australia	7	282 1.2×	29 0.3×	192 2.9×	48 1.0×	11 0.4×	17	331
Kee Yuen Lam Canada	10	90 0.4×	119 1.2×	119 1.8×	51 1.1×	6 0.2×	20	234

Countries citing papers authored by David Ullrich

Since Specialization

Citations

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

Fields of papers citing papers by David Ullrich

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of David Ullrich

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

Ullrich, David, et al.. (2022). PERFORMANCE OF ARMY PROFESSIONALS FROM A PHYSICAL POINT OF VIEW. 12(1). 173–177.

Zagatina, A, Martin Čaprnda, Ľudovít Gašpar, et al.. (2022). Prognostic value of Doppler echocardiographic coronary flow velocity assessment at rest in elderly patients. Acta cardiologica. Supplementum. 78(4). 409–416.

Zagatina, A, Д. В. Шматов, Martin Čaprnda, et al.. (2021). Angiographically Silent Left Main and Left Anterior Artery Disease Detected by Echocardiography. 4(1). 14–21. 1 indexed citations

Ullrich, David, et al.. (2021). Mini-review: A possible role for galanin in post-traumatic stress disorder. Neuroscience Letters. 756. 135980–135980. 4 indexed citations

Ullrich, David. (2020). “‘Swimming in Money’ and John Cheever’s ‘The Swimmer’”. ANQ A Quarterly Journal of Short Articles Notes and Reviews. 35(3). 226–232.

Ullrich, David, et al.. (2020). A novel theory on the predictive value of variation in the β-endorphin system on the risk and severity of PTSD. Military Psychology. 32(3). 247–260. 1 indexed citations

Ullrich, David, et al.. (2019). Global X-tream Index and its Partial Parameters for Identifying the Level of Potential Individual Characteristics in the Challenging Conditions of a Modern Corporate and Security Environment. Sustainability. 11(12). 3325–3325. 3 indexed citations

Brooks, David J., et al.. (2010). Emerging Legal Issues in the Great Lakes Such as the Public Trust Doctrine, Subterranean Rights and Municipal Regulatory Arrangements. 34(2). 279. 1 indexed citations

Ullrich, David. (2008). Complex Made Simple. Graduate studies in mathematics. 12 indexed citations

10.

Choe, Boo Rim, Wade Ramey, & David Ullrich. (1997). Bloch-to-BMOA pullbacks on the disk. Proceedings of the American Mathematical Society. 125(10). 2987–2996. 11 indexed citations

11.

Stegenga, David A. & David Ullrich. (1995). Superharmonic Functions in Hölder Domains. Rocky Mountain Journal of Mathematics. 25(4). 8 indexed citations

12.

Ullrich, David. (1994). More on the Pompeiu Problem. American Mathematical Monthly. 101(2). 165–168. 4 indexed citations

13.

Ullrich, David. (1994). More on the Pompeiu Problem. American Mathematical Monthly. 101(2). 165–165. 6 indexed citations

14.

Ullrich, David. (1991). Removable sets for harmonic functions.. The Michigan Mathematical Journal. 38(3). 17 indexed citations

15.

Alspach, Dale E. & David Ullrich. (1989). Projections Onto Translation-Invariant Subspaces of H 1 (ℝ). Transactions of the American Mathematical Society. 313(2). 571–571. 1 indexed citations

16.

Ramey, Wade & David Ullrich. (1988). On the Behavior of Harmonic Functions Near a Boundary Point. Transactions of the American Mathematical Society. 305(1). 207–207. 2 indexed citations

17.

Ramey, Wade & David Ullrich. (1988). On the behavior of harmonic functions near a boundary point. Transactions of the American Mathematical Society. 305(1). 207–220. 8 indexed citations

18.

Ullrich, David. (1988). Khinchin’s inequality and the zeroes of Bloch functions. Duke Mathematical Journal. 57(2). 3 indexed citations

19.

Ullrich, David. (1986). Radial Limits of Bloch Functions in the unit Disc. Bulletin of the London Mathematical Society. 18(4). 374–378. 1 indexed citations

20.

Ullrich, David. (1985). Radial limits of 𝑀-subharmonic functions. Transactions of the American Mathematical Society. 292(2). 501–518. 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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