Tzanko Donchev

665 total citations
65 papers, 435 citations indexed

About

Tzanko Donchev is a scholar working on Applied Mathematics, Computational Theory and Mathematics and Control and Systems Engineering. According to data from OpenAlex, Tzanko Donchev has authored 65 papers receiving a total of 435 indexed citations (citations by other indexed papers that have themselves been cited), including 53 papers in Applied Mathematics, 34 papers in Computational Theory and Mathematics and 28 papers in Control and Systems Engineering. Recurrent topics in Tzanko Donchev's work include Nonlinear Differential Equations Analysis (50 papers), Stability and Controllability of Differential Equations (25 papers) and Optimization and Variational Analysis (23 papers). Tzanko Donchev is often cited by papers focused on Nonlinear Differential Equations Analysis (50 papers), Stability and Controllability of Differential Equations (25 papers) and Optimization and Variational Analysis (23 papers). Tzanko Donchev collaborates with scholars based in Bulgaria, Romania and Pakistan. Tzanko Donchev's co-authors include Elza Farkhi, Qamar Din, Asen L. Dontchev, Boris S. Mordukhovich, Peter R. Wolenski, Robert Baier, ‎Josip Pečarić, Simeon Reich, Marc Quincampoix and Vasile Lupulescu and has published in prestigious journals such as SHILAP Revista de lepidopterología, Fuzzy Sets and Systems and Journal of Mathematical Analysis and Applications.

In The Last Decade

Tzanko Donchev

60 papers receiving 359 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tzanko Donchev Bulgaria 12 251 204 154 120 96 65 435
Xiaojing Yang China 13 497 2.0× 108 0.5× 146 0.9× 170 1.4× 93 1.0× 81 630
F.A. McRae United States 13 329 1.3× 68 0.3× 106 0.7× 206 1.7× 190 2.0× 20 477
Milan Tvrdý Czechia 14 528 2.1× 183 0.9× 127 0.8× 329 2.7× 86 0.9× 58 663
S. T. Zavalishchin Russia 4 224 0.9× 73 0.4× 144 0.9× 108 0.9× 71 0.7× 6 339
Martin Väth Germany 11 331 1.3× 172 0.8× 149 1.0× 35 0.3× 64 0.7× 76 517
Štefan Schwabik Czechia 14 558 2.2× 156 0.8× 178 1.2× 188 1.6× 115 1.2× 59 729
Alan Feldstein United States 14 132 0.5× 150 0.7× 59 0.4× 319 2.7× 156 1.6× 30 533
Jeffrey J. DaCunha United States 8 193 0.8× 57 0.3× 221 1.4× 104 0.9× 50 0.5× 8 400
S. H. Hou Hong Kong 10 104 0.4× 314 1.5× 173 1.1× 178 1.5× 17 0.2× 32 427
R. Kannan United States 15 314 1.3× 179 0.9× 97 0.6× 301 2.5× 47 0.5× 58 540

Countries citing papers authored by Tzanko Donchev

Since Specialization
Citations

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

Fields of papers citing papers by Tzanko Donchev

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tzanko Donchev

This figure shows the co-authorship network connecting the top 25 collaborators of Tzanko Donchev. A scholar is included among the top collaborators of Tzanko Donchev 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 Tzanko Donchev. Tzanko Donchev 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.
Donchev, Tzanko, et al.. (2019). Relaxation of nonlocal m-dissipative differential inclusions. Analele Universităţii "Ovidius" Constanţa. Seria Matematică. 27(3). 45–63. 1 indexed citations
2.
Donchev, Tzanko, et al.. (2017). Nonlocal m-Dissipative Evolution Inclusions in General Banach Spaces. Mediterranean Journal of Mathematics. 14(5). 6 indexed citations
3.
Donchev, Tzanko, et al.. (2013). Hardy-Type Inequalities on Time Scale via Convexity in Several Variables. 2013. 1–9. 16 indexed citations
4.
Donchev, Tzanko, et al.. (2013). Nonlinear evolution inclusions with one-sided perron right-hand side. Journal of Dynamical and Control Systems. 19(3). 439–456. 4 indexed citations
5.
Din, Qamar, et al.. (2012). Filippov–Pliss lemma and m-dissipative differential inclusions. Journal of Global Optimization. 56(4). 1707–1717. 4 indexed citations
6.
Donchev, Tzanko. (2010). Minimal time function and Hamilton-Jacobi inequalities. 6. 14–24. 2 indexed citations
7.
Donchev, Tzanko & Elza Farkhi. (2009). On the theorem of Filippov-Pliś and some applications. Control and Cybernetics. 38. 1251–1271. 8 indexed citations
8.
Donchev, Tzanko & Asen L. Dontchev. (2008). Extensions of Clarke's proximal characterization for reachable mappings of differential inclusions. Journal of Mathematical Analysis and Applications. 348(1). 454–460. 4 indexed citations
9.
Donchev, Tzanko, Elza Farkhi, & Boris S. Mordukhovich. (2007). Discrete approximations, relaxation, and optimization of one-sided Lipschitzian differential inclusions in Hilbert spaces. Journal of Differential Equations. 243(2). 301–328. 30 indexed citations
10.
Donchev, Tzanko. (2006). Impulsive differential inclusions with constrains. SHILAP Revista de lepidopterología. 2 indexed citations
11.
Donchev, Tzanko, et al.. (2005). Averaging of functional differential inclusions in Banach spaces. Journal of Mathematical Analysis and Applications. 311(2). 402–416. 7 indexed citations
12.
Donchev, Tzanko, Mikhail Kamenskiĭ, & Marc Quincampoix. (2004). Averaging of Perturbed One Sided Lipschitz Differential Inclusions. Zeitschrift für Analysis und ihre Anwendungen. 23(4). 765–774. 2 indexed citations
13.
Donchev, Tzanko. (2004). Surjectivity and fixed points of relaxed dissipative multifunctions. Differential inclusions approach. Journal of Mathematical Analysis and Applications. 299(2). 525–533. 4 indexed citations
14.
Donchev, Tzanko & Marc Quincampoix. (2003). Nonemptiness of viability kernels for infinite-dimensional differential inclusions. Applied Mathematics Letters. 16(8). 1195–1199. 3 indexed citations
15.
Donchev, Tzanko. (2002). Properties of one-sided Lipschitz multivalued maps. Nonlinear Analysis. 49(1). 13–20. 13 indexed citations
16.
Donchev, Tzanko, et al.. (2001). Lower semicontinuous differential inclusions with state constrains.. Novi Sad Journal of Mathematics. 31(2). 35–44. 1 indexed citations
17.
Donchev, Tzanko. (1999). Semicontinuous differential inclusions. Rendiconti del Seminario Matematico della Università di Padova. 101. 147–160. 10 indexed citations
18.
Donchev, Tzanko. (1998). Functional differential inclusions involving dissipative and compact multifunctions. Glasnik Matematicki. 33(1). 51–60. 6 indexed citations
19.
Donchev, Tzanko, et al.. (1995). Singularly perturbed functional-differential inclusions. Set-Valued Analysis. 3(2). 113–128. 9 indexed citations
20.
Donchev, Tzanko. (1991). Functional differential inclusion with monotone right-hand side. Nonlinear Analysis. 16(6). 533–542. 15 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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