J. P. Williams

1.5k total citations
39 papers, 904 citations indexed

About

J. P. Williams is a scholar working on Computational Theory and Mathematics, Applied Mathematics and Mathematical Physics. According to data from OpenAlex, J. P. Williams has authored 39 papers receiving a total of 904 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Computational Theory and Mathematics, 9 papers in Applied Mathematics and 8 papers in Mathematical Physics. Recurrent topics in J. P. Williams's work include Matrix Theory and Algorithms (10 papers), Holomorphic and Operator Theory (7 papers) and Advanced Topics in Algebra (5 papers). J. P. Williams is often cited by papers focused on Matrix Theory and Algorithms (10 papers), Holomorphic and Operator Theory (7 papers) and Advanced Topics in Algebra (5 papers). J. P. Williams collaborates with scholars based in United States and Germany. J. P. Williams's co-authors include Peter Fillmore, Joseph G. Stampfli, Heydar Radjavi, William A. Porter, John K. Johnstone, Ciprian Foiaş, Elli Angelopoulou, Venkatesh G. Ramaiah, Jacques Kpodonu and Edward B. Diethrich and has published in prestigious journals such as Stroke, Pattern Recognition and Journal of Thoracic and Cardiovascular Surgery.

In The Last Decade

J. P. Williams

36 papers receiving 695 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. P. Williams United States	14	529	435	400	246	64	39	904
Paul Bourdon United States	18	1.2k 2.3×	169 0.4×	420 1.1×	429 1.7×	20 0.3×	51	1.5k
Hubert Berens Germany	15	833 1.6×	332 0.8×	493 1.2×	51 0.2×	329 5.1×	47	1.4k
Juan Malumbres Spain	16	346 0.7×	192 0.4×	167 0.4×	124 0.5×	236 3.7×	85	817
George Bachman United States	11	102 0.2×	141 0.3×	197 0.5×	134 0.5×	29 0.5×	31	619
Karl E. Gustafson United States	10	399 0.8×	385 0.9×	161 0.4×	109 0.4×	69 1.1×	19	703
Victor Palamodov Israel	13	302 0.6×	126 0.3×	361 0.9×	144 0.6×	40 0.6×	50	798
Gustavo Corach Argentina	21	936 1.8×	533 1.2×	651 1.6×	419 1.7×	57 0.9×	91	1.2k
Mahlon M. Day United States	14	432 0.8×	470 1.1×	791 2.0×	217 0.9×	110 1.7×	24	1.3k
Paul Koosis Canada	12	686 1.3×	188 0.4×	416 1.0×	80 0.3×	98 1.5×	25	972
Ilya M. Spitkovsky United States	14	541 1.0×	459 1.1×	312 0.8×	213 0.9×	76 1.2×	125	866

Countries citing papers authored by J. P. Williams

Since Specialization

Citations

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

Fields of papers citing papers by J. P. Williams

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. P. Williams

This figure shows the co-authorship network connecting the top 25 collaborators of J. P. Williams. A scholar is included among the top collaborators of J. P. Williams 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. P. Williams. J. P. Williams 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

Siegler, M.A., J. P. Williams, D. A. Paige, & Jun Feng. (2017). Lunar Global Heat Flow: Predictions and Constraints. AGU Fall Meeting Abstracts. 2017. 1 indexed citations

Yang, Jinzhong, J. P. Williams, Yiyong Sun, Rick S. Blum, & Chenyang Xu. (2010). A robust hybrid method for nonrigid image registration. Pattern Recognition. 44(4). 764–776. 19 indexed citations

Chen, Hsin‐Liang & J. P. Williams. (2009). Pedagogical Design for an Online Information Literacy Course: College Students' Learning Experience with Multi-modal Objects. 33. 1–37. 5 indexed citations

Kpodonu, Jacques, Grayson H. Wheatley, J. P. Williams, et al.. (2008). A Novel Approach for the Endovascular Repair of the Small Thoracic Aorta: Customizing Off-the-Shelf Endoluminal Grafts to Treat a Post-Coarctation Pseudoaneurysm. The Annals of Thoracic Surgery. 85(3). 1115–1117. 6 indexed citations

Peterson, Mark D., Grayson H. Wheatley, Jacques Kpodonu, et al.. (2008). Treatment of type II endoleaks associated with left subclavian artery coverage during thoracic aortic stent grafting. Journal of Thoracic and Cardiovascular Surgery. 136(5). 1193–1199. 18 indexed citations

Kpodonu, Jacques, J. P. Williams, Venkatesh G. Ramaiah, & Edward B. Diethrich. (2007). Endovascular management of a descending thoracic mycotic aneurysm: mid-term follow-up. European Journal of Cardio-Thoracic Surgery. 32(1). 178–179. 9 indexed citations

Bias, Randolph G., et al.. (2005). The Influence of Microsoft's ClearType® on Programmer Productivity. Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 49(5). 642–644. 1 indexed citations

Angelopoulou, Elli, J. P. Williams, & Lawrence B. Wolff. (2002). A curvature based descriptor invariant to pose and albedo derived from photometric data. 13. 165–171. 2 indexed citations

Williams, J. P., John K. Johnstone, & Lawrence B. Wolff. (2002). Rational discrete generalized cylinders and their application to shape recovery in medical images. 387–392. 8 indexed citations

10.

Angelopoulou, Elli & J. P. Williams. (1999). Photometric surface analysis in a tri-luminal environment. 442–449 vol.1. 9 indexed citations

11.

Williams, J. P.. (1980). On a boundedness condition for operators with a singleton spectrum. Proceedings of the American Mathematical Society. 78(1). 30–32. 8 indexed citations

12.

Williams, J. P.. (1972). On commutativity and the numerical range in Banach algebras. Journal of Functional Analysis. 10(3). 326–329. 2 indexed citations

13.

Fillmore, Peter, Joseph G. Stampfli, & J. P. Williams. (1972). On the essential numerical range, the essential spectrum, and a problem of Halmos. 108 indexed citations

14.

Williams, J. P.. (1971). On Compressions of Matrices. Journal of the London Mathematical Society. s2-3(3). 526–530. 11 indexed citations

15.

Fillmore, Peter & J. P. Williams. (1971). On operator ranges. Advances in Mathematics. 7(3). 254–281. 285 indexed citations

16.

Williams, J. P.. (1970). Finite operators. Proceedings of the American Mathematical Society. 26(1). 129–136. 22 indexed citations

17.

Williams, J. P.. (1969). Similarity and the numerical range. Journal of Mathematical Analysis and Applications. 26(2). 307–314. 24 indexed citations

18.

Williams, J. P.. (1967). A "Metric" Characterization of Reflexivity. Proceedings of the American Mathematical Society. 18(1). 163–163. 1 indexed citations

19.

Williams, J. P.. (1967). Spectra of products and numerical ranges. Journal of Mathematical Analysis and Applications. 17(2). 214–220. 42 indexed citations

20.

Porter, William A. & J. P. Williams. (1966). A note on the minimum effort control problem. Journal of Mathematical Analysis and Applications. 13(2). 251–264. 23 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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