Qi S. Zhang

2.1k total citations
61 papers, 1.2k citations indexed

About

Qi S. Zhang is a scholar working on Applied Mathematics, Mathematical Physics and Control and Systems Engineering. According to data from OpenAlex, Qi S. Zhang has authored 61 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Applied Mathematics, 30 papers in Mathematical Physics and 16 papers in Control and Systems Engineering. Recurrent topics in Qi S. Zhang's work include Nonlinear Partial Differential Equations (31 papers), Geometric Analysis and Curvature Flows (24 papers) and Advanced Mathematical Physics Problems (19 papers). Qi S. Zhang is often cited by papers focused on Nonlinear Partial Differential Equations (31 papers), Geometric Analysis and Curvature Flows (24 papers) and Advanced Mathematical Physics Problems (19 papers). Qi S. Zhang collaborates with scholars based in United States, China and France. Qi S. Zhang's co-authors include Philippe Souplet, Jerome A. Goldstein, Zhengyang Zhao, Catherine Bandle, Howard A. Levine, Vitali Liskevich, Hongjie Dong, Bun Wong, Yuting Li and Hui Shang and has published in prestigious journals such as SHILAP Revista de lepidopterología, Fuel and Communications in Mathematical Physics.

In The Last Decade

Qi S. Zhang

54 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Qi S. Zhang United States	19	954	683	400	366	142	61	1.2k
Ermanno Lanconelli Italy	23	1.6k 1.7×	884 1.3×	955 2.4×	169 0.5×	172 1.2×	86	1.8k
Hongjie Dong United States	24	1.4k 1.5×	936 1.4×	786 2.0×	219 0.6×	20 0.1×	137	1.6k
Hans-Christoph Grunau Germany	21	1.3k 1.4×	533 0.8×	990 2.5×	140 0.4×	115 0.8×	61	1.6k
Ovidiu Savin United States	20	1.2k 1.3×	398 0.6×	836 2.1×	74 0.2×	260 1.8×	64	1.4k
Thomas Runst Germany	8	685 0.7×	504 0.7×	234 0.6×	127 0.3×	33 0.2×	22	855
Przemysław Górka Poland	14	373 0.4×	396 0.6×	219 0.5×	185 0.5×	87 0.6×	64	643
Marius Paicu France	19	1.3k 1.4×	1.1k 1.6×	97 0.2×	488 1.3×	16 0.1×	47	1.4k
Kazuhiro Ishige Japan	15	664 0.7×	441 0.6×	430 1.1×	218 0.6×	41 0.3×	96	807
Angelo Alvino Italy	17	1.0k 1.1×	516 0.8×	750 1.9×	59 0.2×	78 0.5×	47	1.1k
Hikosaburo Komatsu Japan	15	466 0.5×	432 0.6×	192 0.5×	71 0.2×	159 1.1×	30	754

Countries citing papers authored by Qi S. Zhang

Since Specialization

Citations

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

Fields of papers citing papers by Qi S. Zhang

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Qi S. Zhang. 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 Qi S. Zhang. The network helps show where Qi S. Zhang may publish in the future.

Co-authorship network of co-authors of Qi S. Zhang

This figure shows the co-authorship network connecting the top 25 collaborators of Qi S. Zhang. A scholar is included among the top collaborators of Qi S. Zhang 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 Qi S. Zhang. Qi S. Zhang 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

Zhang, Qi S.. (2025). A rigidity result for ancient Ricci flows. Mathematische Zeitschrift. 310(2).

Zhang, Qi S., et al.. (2024). Improved Direct Torque Control of PMSM Drive Strategy Based on Discrete Virtual Vectors. 10–14.

Wang, Ke, Cheng Zhuo, Na Wu, Qi S. Zhang, & Li Liu. (2023). Theoretical model on the slug/churn transition based on the generation and evolution of the huge waves. Physics of Fluids. 35(4). 3 indexed citations

Dong, Hongjie, et al.. (2023). Time Analyticity for Nonlocal Parabolic Equations. SIAM Journal on Mathematical Analysis. 55(3). 1883–1915. 1 indexed citations

Pan, Xinghong, et al.. (2018). Decay and vanishing of some axially symmetric D-solutions of the Navier-Stokes equations. arXiv (Cornell University). 13 indexed citations

Zhang, Qi S., et al.. (2018). Li–Yau gradient bounds on compact manifolds under nearly optimal curvature conditions. Journal of Functional Analysis. 275(2). 478–515. 19 indexed citations

Zhang, Qi S., et al.. (2018). Bounds on Harmonic Radius and Limits of Manifolds with Bounded Bakry–Émery Ricci Curvature. Journal of Geometric Analysis. 29(3). 2082–2123. 3 indexed citations

Tian, Gang & Qi S. Zhang. (2014). Isoperimetric inequality under Kähler Ricci flow. American Journal of Mathematics. 136(5). 1155–1173. 4 indexed citations

Zhang, Qi S.. (2010). WHEN DOES A SCHRÖDINGER HEAT EQUATION PERMIT POSITIVE SOLUTIONS. 22–51. 2 indexed citations

10.

Zhang, Qi S.. (2009). Heat kernel bounds, ancient κ solutions and the Poincaré conjecture. Journal of Functional Analysis. 258(4). 1225–1246. 3 indexed citations

11.

Zhang, Qi S., et al.. (2009). Solvability conditions for some semi-linear parabolic equations. Journal of Differential Equations. 247(8). 2440–2454.

12.

Souplet, Philippe & Qi S. Zhang. (2006). SHARP GRADIENT ESTIMATE AND YAU'S LIOUVILLE THEOREM FOR THE HEAT EQUATION ON NONCOMPACT MANIFOLDS. Bulletin of the London Mathematical Society. 38(6). 1045–1053. 136 indexed citations

13.

Zhang, Qi S.. (2003). A SHARP COMPARISON RESULT CONCERNING SCHRÖDINGER HEAT KERNELS. Bulletin of the London Mathematical Society. 35(4). 461–472. 13 indexed citations

14.

Zhang, Qi S.. (2003). The global behavior of heat kernels in exterior domains. Journal of Functional Analysis. 200(1). 160–176. 29 indexed citations

15.

Zhang, Qi S.. (2001). The Quantizing Effect of Potentials on the Critical Number of Reaction–Diffusion Equations. Journal of Differential Equations. 170(1). 188–214. 9 indexed citations

16.

Goldstein, Jerome A. & Qi S. Zhang. (2001). On a Degenerate Heat Equation with a Singular Potential. Journal of Functional Analysis. 186(2). 342–359. 43 indexed citations

17.

Zhang, Qi S.. (2001). Global Bounds of Schrödinger Heat Kernels with Negative Potentials. Journal of Functional Analysis. 182(2). 344–370. 16 indexed citations

18.

Bandle, Catherine, Howard A. Levine, & Qi S. Zhang. (2000). Critical Exponents of Fujita Type for Inhomogeneous Parabolic Equations and Systems. Journal of Mathematical Analysis and Applications. 251(2). 624–648. 43 indexed citations

19.

Zhang, Qi S.. (1999). A Priori Estimates and the Representation Formula for All Positive Solutions to a Semilinear Parabolic Problem. Journal of Mathematical Analysis and Applications. 232(2). 413–427. 4 indexed citations

20.

Zhang, Qi S.. (1997). Gaussian Bounds for the Fundamental Solutions .... manuscripta mathematica. 93(3). 381–390. 2 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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