Jiangang Qi

551 total citations
55 papers, 392 citations indexed

About

Jiangang Qi is a scholar working on Mathematical Physics, Computational Theory and Mathematics and Applied Mathematics. According to data from OpenAlex, Jiangang Qi has authored 55 papers receiving a total of 392 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Mathematical Physics, 26 papers in Computational Theory and Mathematics and 24 papers in Applied Mathematics. Recurrent topics in Jiangang Qi's work include Spectral Theory in Mathematical Physics (36 papers), Advanced Mathematical Modeling in Engineering (20 papers) and Differential Equations and Boundary Problems (15 papers). Jiangang Qi is often cited by papers focused on Spectral Theory in Mathematical Physics (36 papers), Advanced Mathematical Modeling in Engineering (20 papers) and Differential Equations and Boundary Problems (15 papers). Jiangang Qi collaborates with scholars based in China, Austria and Germany. Jiangang Qi's co-authors include Shaozhu Chen, Xilin Fu, Jing Li, Jing Li, Zhaowen Zheng, Yansheng Liu, Friedrich Philipp, Jussi Behrndt, H. Peter Lu and Mingji Zhang and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Mathematical Analysis and Applications and Applied Mathematics and Computation.

In The Last Decade

Jiangang Qi

53 papers receiving 349 citations

Peers

Jiangang Qi

CTM

SNP

Benedetta Noris Italy

Jürgen Voigt Germany

Xiaohua Yao China

Hichem Hajaiej United States

Augusto C. Ponce France

M. M. Tharwat Egypt

Hugo Tavares Portugal

S. I. Pokhozhaev Russia

Luz Roncal Spain

Daniele Cassani Italy

Benedetta Noris Italy

Jiangang Qi

295 ×1.1

299 ×1.4

238 ×1.5

CTM

80 ×1.0

SNP

17 ×0.4

Citations per year, relative to Jiangang Qi Jiangang Qi (= 1×) peers Benedetta Noris

Countries citing papers authored by Jiangang Qi

Since Specialization

Citations

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

Fields of papers citing papers by Jiangang Qi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jiangang Qi

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

Qi, Jiangang, et al.. (2025). A new approach to inverse Sturm–Liouville problems based on point interaction. Journal of Mathematical Physics. 66(3).

Li, Jing & Jiangang Qi. (2023). Continuous dependence of eigenvalues on potential functions for nonlocal Sturm–Liouville equations. Mathematical Methods in the Applied Sciences. 46(9). 10617–10623. 2 indexed citations

Li, Jing, Jiangang Qi, & Xiaoping Yuan. (2023). KAM theorem for reversible mapping of low smoothness with application. Discrete and Continuous Dynamical Systems. 43(10). 3563–3581. 2 indexed citations

Qi, Jiangang, et al.. (2023). Asymptotic analysis of the first eigenvalues for Sturm-Liouville problems with applications. Differential and Integral Equations. 36(11/12).

Qi, Jiangang, et al.. (2020). Extremum estimates of the <inline-formula><tex-math id="M1">$ L^1 $</tex-math></inline-formula>-norm of weights for eigenvalue problems of vibrating string equations based on critical equations. Discrete and Continuous Dynamical Systems - B. 26(7). 3505–3516. 1 indexed citations

Li, Jing & Jiangang Qi. (2019). Note on a nonlocal Sturm–Liouville problem with both right and left fractional derivatives. Applied Mathematics Letters. 97. 14–19. 7 indexed citations

Qi, Jiangang, et al.. (2017). Extremal norm for potentials of Sturm-Liouville eigenvalue problems with separated boundary conditions. SHILAP Revista de lepidopterología. 3 indexed citations

Qi, Jiangang, et al.. (2015). Non-real eigenvalues of one dimensional p-Laplacian with indefinite weight. Applied Mathematics Letters. 48. 143–149. 1 indexed citations

Qi, Jiangang, et al.. (2013). Non-real eigenvalues of indefinite Sturm–Liouville problems. Journal of Differential Equations. 255(8). 2291–2301. 20 indexed citations

10.

Qi, Jiangang & Hongyou Wu. (2011). Limit point, strong limit point and Dirichlet conditions for Hamiltonian differential systems. Mathematische Nachrichten. 284(5-6). 764–780. 5 indexed citations

11.

Qi, Jiangang, et al.. (2011). Criteria of the three cases for non-self-adjoint singular Sturm-Liouville difference equations. The Journal of Difference Equations and Applications. 18(12). 2069–2087. 1 indexed citations

12.

Qi, Jiangang, et al.. (2010). On classification of second-order differential equations with complex coefficients. Journal of Mathematical Analysis and Applications. 372(2). 585–597. 11 indexed citations

13.

Qi, Jiangang & Shaozhu Chen. (2010). Essential spectra of singular matrix differential operators of mixed order in the limit circle case. Mathematische Nachrichten. 284(2-3). 342–354. 5 indexed citations

14.

Qi, Jiangang. (2007). Limit-point criteria for semi-degenerate singular Hamiltonian differential systems with perturbation terms. Journal of Mathematical Analysis and Applications. 334(2). 983–997. 4 indexed citations

15.

Qi, Jiangang, et al.. (2005). Limit-point criterion for singular linear Dirac differential systems. Computers & Mathematics with Applications. 49(5-6). 765–775. 3 indexed citations

16.

Qi, Jiangang. (2005). Non-limit-circle criteria for singular Hamiltonian differential systems. Journal of Mathematical Analysis and Applications. 305(2). 599–616. 5 indexed citations

17.

Qi, Jiangang & Shaozhu Chen. (2004). Lower bound for the spectrum and the presence of pure point spectrum of a singular discrete Hamiltonian system. Journal of Mathematical Analysis and Applications. 295(2). 539–556. 8 indexed citations

18.

Qi, Jiangang & Shaozhu Chen. (2004). Strong limit-point classification of singular Hamiltonian expressions. Proceedings of the American Mathematical Society. 132(6). 1667–1674. 15 indexed citations

19.

Chen, Shaozhu, et al.. (2003). Pulse phenomena of second-order impulsive differential equations with variable moments. Computers & Mathematics with Applications. 46(8-9). 1281–1287. 2 indexed citations

20.

Qi, Jiangang. (2002). Upper and Lower Solutions for Impulsive Differential Equations with Application to ODE. 1 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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