Keqin Gu

5.3k total citations · 2 hit papers
97 papers, 3.9k citations indexed

About

Keqin Gu is a scholar working on Control and Systems Engineering, Numerical Analysis and Computational Theory and Mathematics. According to data from OpenAlex, Keqin Gu has authored 97 papers receiving a total of 3.9k indexed citations (citations by other indexed papers that have themselves been cited), including 84 papers in Control and Systems Engineering, 31 papers in Numerical Analysis and 26 papers in Computational Theory and Mathematics. Recurrent topics in Keqin Gu's work include Stability and Control of Uncertain Systems (65 papers), Stability and Controllability of Differential Equations (32 papers) and Numerical methods for differential equations (29 papers). Keqin Gu is often cited by papers focused on Stability and Control of Uncertain Systems (65 papers), Stability and Controllability of Differential Equations (32 papers) and Numerical methods for differential equations (29 papers). Keqin Gu collaborates with scholars based in United States, France and China. Keqin Gu's co-authors include Silviu‐Iulian Niculescu, Qing‐Long Han, Jie Chen, Yi Liu, Shengyuan Xu, Albert C. J. Luo, V.B. Kolmanovskii, Hongfei Li, Irinel‐Constantin Morărescu and Benson H. Tongue and has published in prestigious journals such as IEEE Transactions on Automatic Control, Automatica and IEEE Access.

In The Last Decade

Keqin Gu

94 papers receiving 3.8k citations

Hit Papers

An integral inequality in the stability problem of time-d... 2002 2026 2010 2018 2002 2003 400 800 1.2k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. An integral inequality in the stability problem of time-delay systems
    2002 1.2k citations Keqin Gu profile →
  2. Survey on Recent Results in the Stability and Control of Time-Delay Systems*
    2003 492 citations Keqin Gu, Silviu‐Iulian Niculescu profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keqin Gu United States 25 3.0k 1.9k 745 513 336 97 3.9k
Keqin Gu United States 8 4.2k 1.4× 2.8k 1.5× 919 1.2× 553 1.1× 278 0.8× 11 5.2k
Rafal Goebel United States 22 3.3k 1.1× 922 0.5× 587 0.8× 237 0.5× 223 0.7× 75 4.2k
Vladimir L. Kharitonov Mexico 27 5.9k 2.0× 3.4k 1.8× 1.4k 1.8× 816 1.6× 551 1.6× 101 7.3k
Maria Elena Valcher Italy 29 1.9k 0.7× 1.2k 0.6× 839 1.1× 234 0.5× 106 0.3× 159 3.7k
M. Kanat Camlibel Netherlands 31 1.9k 0.6× 822 0.4× 460 0.6× 344 0.7× 277 0.8× 160 3.0k
Harry L. Trentelman Netherlands 26 2.3k 0.8× 926 0.5× 428 0.6× 432 0.8× 259 0.8× 130 3.0k
Frédéric Mazenc France 39 5.0k 1.7× 956 0.5× 308 0.4× 320 0.6× 192 0.6× 195 5.6k
Sabine Mondié Mexico 26 2.4k 0.8× 770 0.4× 412 0.6× 341 0.7× 330 1.0× 191 3.0k
Ettore Fornasini Italy 24 2.2k 0.8× 674 0.4× 990 1.3× 354 0.7× 168 0.5× 82 3.7k
Sanjay P. Bhat India 22 7.4k 2.5× 3.2k 1.7× 749 1.0× 737 1.4× 121 0.4× 83 9.3k

Countries citing papers authored by Keqin Gu

Since Specialization
Citations

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

Fields of papers citing papers by Keqin Gu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keqin Gu

This figure shows the co-authorship network connecting the top 25 collaborators of Keqin Gu. A scholar is included among the top collaborators of Keqin Gu 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 Keqin Gu. Keqin Gu 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.
Gu, Keqin. (2022). External direct sum invariant subspace and decomposition of coupled differential-difference equations. 2022 American Control Conference (ACC). 5123–5127. 1 indexed citations
2.
Peet, Matthew M. & Keqin Gu. (2019). SOS for Systems with Multiple Delays: Part 1. H∞-Optimal Control. 3849–3856. 2 indexed citations
3.
Peet, Matthew M. & Keqin Gu. (2019). SOS for Systems with Multiple Delays: Part 2. H∞-Optimal Estimation. 3870–3876. 2 indexed citations
4.
Jin, Chenxia, Keqin Gu, Silviu‐Iulian Niculescu, & Islam Boussaada. (2018). Stability Analysis of Systems with Delay-Dependent Coefficients Subject to Some Particular Delay Structure. SPIRE - Sciences Po Institutional REpository. 1206–1213. 3 indexed citations
5.
Gu, Keqin, et al.. (2017). Some insights into the migration of double imaginary roots under small deviation of two parameters. Automatica. 88. 91–97. 7 indexed citations
6.
Li, Yongmin, Keqin Gu, Jianping Zhou, & Shengyuan Xu. (2014). Estimating stable delay intervals with a discretized Lyapunov–Krasovskii functional formulation. Automatica. 50(6). 1691–1697. 36 indexed citations
7.
Gu, Keqin, et al.. (2014). Stability crossing set for systems with three scalar delay channels. International Journal of Dynamics and Control. 2(2). 164–197. 7 indexed citations
8.
Gu, Keqin, et al.. (2011). Stability crossing set for systems with two scalar-delay channels. IFAC Proceedings Volumes. 44(1). 1453–1458. 3 indexed citations
9.
Li, Hongfei & Keqin Gu. (2010). Discretized Lyapunov–Krasovskii functional for coupled differential–difference equations with multiple delay channels. Automatica. 46(5). 902–909. 45 indexed citations
10.
Li, Chuandong & Keqin Gu. (2009). Discretized Lyapunov-Krasovskii functional method for coupled differential-functional equations with discrete and distributed delays. Asian Control Conference. 39–44. 4 indexed citations
11.
Morărescu, Irinel‐Constantin, Silviu‐Iulian Niculescu, & Keqin Gu. (2006). On the geometry of stability regions of Smith predictors subject to delay uncertainty. IMA Journal of Mathematical Control and Information. 24(3). 411–423. 14 indexed citations
12.
Gu, Keqin, Silviu‐Iulian Niculescu, & Jie Chen. (2005). On stability crossing curves for general systems with two delays. Journal of Mathematical Analysis and Applications. 311(1). 231–253. 262 indexed citations
13.
Niculescu, Silviu‐Iulian & Keqin Gu. (2003). Robust stability of some oscillatory systems including time-varying delay with applications in congestion control. ISA Transactions. 42(4). 595–603. 6 indexed citations
14.
Kolmanovskii, V.B., Silviu‐Iulian Niculescu, & Keqin Gu. (2003). Delay effects on stability: a survey. 2. 1993–1998. 72 indexed citations
15.
Gu, Keqin, Chaouki T. Abdallah, & Silviu‐Iulian Niculescu. (2002). Time Delay Systems. Pergamon eBooks. 7 indexed citations
16.
Gu, Keqin. (2002). An integral inequality in the stability problem of time-delay systems. 3. 2805–2810. 1217 indexed citations breakdown →
17.
Luo, Albert C. J. & Keqin Gu. (2002). On resonant separatrix bands of a Duffing oscillator with a twin-well potential. Chaos Solitons & Fractals. 15(4). 771–782. 3 indexed citations
18.
Gu, Keqin. (2001). Discretization schemes for Lyapunov-Krasovskii functionals in time-delay systems. Kybernetika. 37(4). 479–504. 29 indexed citations
19.
Gu, Keqin, Albert C. J. Luo, & Silviu‐Iulian Niculescu. (1999). Discretized Lyapunov functional for systems with distributed delay. HAL (Le Centre pour la Communication Scientifique Directe). 3649–3654. 9 indexed citations
20.
Gu, Keqin. (1999). Discretized Lyapunov functional for uncertain systems with multiple time-delay. International Journal of Control. 72(16). 1436–1445. 41 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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Breakdown of academic impact, for papers by Keqin Gu Breakdown of academic impact, for papers by Rafal Goebel Breakdown of academic impact, for papers by Vladimir L. Kharitonov Breakdown of academic impact, for papers by Maria Elena Valcher Breakdown of academic impact, for papers by M. Kanat Camlibel Breakdown of academic impact, for papers by Harry L. Trentelman Breakdown of academic impact, for papers by Frédéric Mazenc Breakdown of academic impact, for papers by Sabine Mondié Breakdown of academic impact, for papers by Ettore Fornasini Breakdown of academic impact, for papers by Sanjay P. Bhat
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