Lenhard Ng

1.1k total citations
27 papers, 483 citations indexed

About

Lenhard Ng is a scholar working on Geometry and Topology, Mathematical Physics and Discrete Mathematics and Combinatorics. According to data from OpenAlex, Lenhard Ng has authored 27 papers receiving a total of 483 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Geometry and Topology, 18 papers in Mathematical Physics and 11 papers in Discrete Mathematics and Combinatorics. Recurrent topics in Lenhard Ng's work include Geometric and Algebraic Topology (22 papers), Homotopy and Cohomology in Algebraic Topology (17 papers) and Advanced Combinatorial Mathematics (7 papers). Lenhard Ng is often cited by papers focused on Geometric and Algebraic Topology (22 papers), Homotopy and Cohomology in Algebraic Topology (17 papers) and Advanced Combinatorial Mathematics (7 papers). Lenhard Ng collaborates with scholars based in United States, Australia and Sweden. Lenhard Ng's co-authors include John B. Etnyre, Peter Ozsváth, Dylan P. Thurston, Tobias Ekholm, Vivek Shende, Terence Tao, Billy Tao, Miraca U. M. Gross, Julian C. Stanley and Sucharit Sarkar and has published in prestigious journals such as Inventiones mathematicae, Advances in Mathematics and Pacific Journal of Mathematics.

In The Last Decade

Lenhard Ng

26 papers receiving 433 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Lenhard Ng United States 14 397 291 156 134 63 27 483
Luis Paris France 13 551 1.4× 443 1.5× 180 1.2× 146 1.1× 8 0.1× 52 606
Peter Teichner United States 14 604 1.5× 559 1.9× 131 0.8× 109 0.8× 28 0.4× 48 648
J. Scott Carter United States 10 568 1.4× 404 1.4× 230 1.5× 123 0.9× 5 0.1× 26 596
F. Van Oystaeyen Belgium 18 960 2.4× 397 1.4× 124 0.8× 72 0.5× 8 0.1× 142 1.2k
S. Yu. Orevkov France 11 273 0.7× 112 0.4× 68 0.4× 78 0.6× 10 0.2× 49 310
Vassily Olegovich Manturov Russia 14 555 1.4× 404 1.4× 328 2.1× 174 1.3× 4 0.1× 78 597
Douglas S. Jungreis United States 6 165 0.4× 137 0.5× 48 0.3× 53 0.4× 2 0.0× 15 228
Bert Wiest France 10 255 0.6× 183 0.6× 75 0.5× 96 0.7× 8 0.1× 24 296
Patrick M. Gilmer United States 13 365 0.9× 301 1.0× 60 0.4× 86 0.6× 15 0.2× 34 413
David Joyce United States 4 409 1.0× 264 0.9× 154 1.0× 131 1.0× 5 0.1× 6 443

Countries citing papers authored by Lenhard Ng

Since Specialization
Citations

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

Fields of papers citing papers by Lenhard Ng

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Lenhard Ng

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

All Works

20 of 20 papers shown
1.
Ng, Lenhard, et al.. (2022). Braid loops with infinite monodromy on the Legendrian contact DGA. Journal of Topology. 15(4). 1927–2016. 10 indexed citations
2.
Etnyre, John B. & Lenhard Ng. (2020). Legendrian contact homology in $\mathbb{R}^3$. 25(1). 103–161. 6 indexed citations
3.
Cieliebak, Kai, et al.. (2017). Knot contact homology, string topology, and the cord algebra. French digital mathematics library (Numdam). 4. 661–780. 7 indexed citations
4.
Ng, Lenhard, et al.. (2017). The cardinality of the augmentation category of a Legendrian link. Mathematical Research Letters. 24(6). 1845–1874. 2 indexed citations
5.
Ekholm, Tobias, Lenhard Ng, & Vivek Shende. (2017). A complete knot invariant from contact homology. Inventiones mathematicae. 211(3). 1149–1200. 14 indexed citations
6.
Ng, Lenhard, et al.. (2013). An Atlas of Legendrian Knots. Experimental Mathematics. 22(1). 26–37. 16 indexed citations
7.
Ng, Lenhard. (2011). Combinatorial knot contact homology and transverse knots. Advances in Mathematics. 227(6). 2189–2219. 18 indexed citations
8.
Ng, Lenhard. (2011). ON ARC INDEX AND MAXIMAL THURSTON–BENNEQUIN NUMBER. Journal of Knot Theory and Its Ramifications. 21(4). 1250031–1250031. 12 indexed citations
9.
Ng, Lenhard. (2008). A Skein Approach to Bennequin-Type Inequalities. International Mathematics Research Notices. 2008. 7 indexed citations
10.
Stanley, Julian C., et al.. (2006). Insights From SMPY's Greatest Former Child Prodigies: Drs. Terence (“Terry”) Tao and Lenhard (“Lenny”) Ng Reflect on Their Talent Development. Gifted Child Quarterly. 50(4). 307–324. 19 indexed citations
11.
Ng, Lenhard. (2005). Knot and braid invariants from contact homology II. Geometry & Topology. 9(3). 1603–1637. 26 indexed citations
12.
Ng, Lenhard. (2005). Knot and braid invariants from contact homology I. Geometry & Topology. 9(1). 247–297. 23 indexed citations
13.
Etnyre, John B. & Lenhard Ng. (2003). Problems in low dimensional contact topology. 337–357. 4 indexed citations
14.
Ng, Lenhard. (2003). Computable Legendrian invariants. Topology. 42(1). 55–82. 69 indexed citations
15.
Ng, Lenhard. (2001). Maximal Thurston–Bennequin number of two-bridge links. Algebraic & Geometric Topology. 1(1). 427–434. 16 indexed citations
16.
Etnyre, John B., et al.. (2001). Invariants of Legendrian Knots and Coherent Orientations. Journal of Symplectic Geometry. 1(2). 321–367. 41 indexed citations
17.
Ng, Lenhard. (1998). Hamiltonian Decomposition of Lexicographic Products of Digraphs. Journal of Combinatorial Theory Series B. 73(2). 119–129. 6 indexed citations
18.
Ng, Lenhard, et al.. (1997). k -Ordered Hamiltonian graphs. Journal of Graph Theory. 24(1). 45–57. 44 indexed citations
19.
Ng, Lenhard. (1997). Hamiltonian decomposition of complete regular multipartite digraphs. Discrete Mathematics. 177(1-3). 279–285. 7 indexed citations
20.
Ng, Lenhard, et al.. (1997). k-ordered Hamiltonian graphs. Journal of Graph Theory. 24(1). 45–57. 33 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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