Todor Gramchev

919 total citations
55 papers, 426 citations indexed

About

Todor Gramchev is a scholar working on Mathematical Physics, Applied Mathematics and Control and Systems Engineering. According to data from OpenAlex, Todor Gramchev has authored 55 papers receiving a total of 426 indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Mathematical Physics, 41 papers in Applied Mathematics and 12 papers in Control and Systems Engineering. Recurrent topics in Todor Gramchev's work include Advanced Mathematical Physics Problems (24 papers), Differential Equations and Boundary Problems (18 papers) and Stability and Controllability of Differential Equations (12 papers). Todor Gramchev is often cited by papers focused on Advanced Mathematical Physics Problems (24 papers), Differential Equations and Boundary Problems (18 papers) and Stability and Controllability of Differential Equations (12 papers). Todor Gramchev collaborates with scholars based in Italy, Bulgaria and Japan. Todor Gramchev's co-authors include Masafumi Yoshino, Luigi Rodino, Marco Cappiello, H. A. Biagioni, Sebastian Walcher, Detta Dickinson, Claudia Garetto, Michael Oberguggenberger, Giuseppe Gaeta and Stevan Pilipović and has published in prestigious journals such as SHILAP Revista de lepidopterología, Communications in Mathematical Physics and Journal of Differential Equations.

In The Last Decade

Todor Gramchev

49 papers receiving 391 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Todor Gramchev Italy 12 308 266 102 86 56 55 426
J. F. Colombeau France 15 557 1.8× 322 1.2× 53 0.5× 72 0.8× 47 0.8× 44 726
Victor Ivrii Canada 13 473 1.5× 294 1.1× 116 1.1× 44 0.5× 50 0.9× 39 605
C. Goulaouic France 12 247 0.8× 313 1.2× 94 0.9× 96 1.1× 34 0.6× 24 486
Sławomir Rybicki Poland 12 123 0.4× 213 0.8× 159 1.6× 174 2.0× 50 0.9× 48 389
Jacques Chazarain France 8 238 0.8× 188 0.7× 78 0.8× 44 0.5× 45 0.8× 11 396
Jorge Ize Mexico 11 94 0.3× 99 0.4× 121 1.2× 137 1.6× 43 0.8× 22 351
Andrew Hassell Australia 19 643 2.1× 403 1.5× 121 1.2× 82 1.0× 62 1.1× 49 765
Margherita Nolasco Italy 12 335 1.1× 371 1.4× 97 1.0× 80 0.9× 26 0.5× 25 514
Éric Leichtnam France 12 386 1.3× 162 0.6× 108 1.1× 101 1.2× 41 0.7× 30 452
Carmen Núñez Spain 11 134 0.4× 92 0.3× 173 1.7× 83 1.0× 135 2.4× 47 388

Countries citing papers authored by Todor Gramchev

Since Specialization
Citations

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

Fields of papers citing papers by Todor Gramchev

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Todor Gramchev

This figure shows the co-authorship network connecting the top 25 collaborators of Todor Gramchev. A scholar is included among the top collaborators of Todor Gramchev 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 Todor Gramchev. Todor Gramchev 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.
Colombini, Ferruccio, et al.. (2022). On some hyperbolic equations of third order. Annali di Matematica Pura ed Applicata (1923 -). 202(1). 143–183.
2.
Gramchev, Todor, Stevan Pilipović, & Luigi Rodino. (2011). Eigenfunction expansions in ℝⁿ. Proceedings of the American Mathematical Society. 139(12). 4361–4368. 10 indexed citations
3.
Gramchev, Todor, et al.. (2008). Global Cauchy problems for hyperbolic systems with characteristics admitting superlinear growth for | x | → ∞ . Comptes Rendus Mathématique. 347(1-2). 49–54. 2 indexed citations
4.
Yoshino, Masafumi & Todor Gramchev. (2008). Simultaneous reduction to normal forms of commuting singular vector fields with linear parts having Jordan blocks. Annales de l’institut Fourier. 58(1). 263–297. 1 indexed citations
5.
Gramchev, Todor, et al.. (2008). Uniform analytic-Gevrey regularity of solutions to a semilinear heat equation. Banach Center Publications. 213–226. 4 indexed citations
6.
Gramchev, Todor, et al.. (2006). Global in time solutions of evolution equations in scales of Banach function spaces in Rn. Bulletin des Sciences Mathématiques. 131(8). 761–786. 7 indexed citations
7.
Cappiello, Marco, Todor Gramchev, & Luigi Rodino. (2006). Super-exponential decay and holomorphic extensions for semilinear equations with polynomial coefficients. Journal of Functional Analysis. 237(2). 634–654. 17 indexed citations
8.
Garetto, Claudia, Todor Gramchev, & Michael Oberguggenberger. (2005). PSEUDODIFFERENTIAL OPERATORS WITH GENERALIZED SYMBOLS AND REGULARITY THEORY. SHILAP Revista de lepidopterología. 30 indexed citations
9.
Gramchev, Todor & Sebastian Walcher. (2005). Normal Forms of Maps: Formal and Algebraic Aspects. Acta Applicandae Mathematicae. 87(1-3). 123–146. 9 indexed citations
10.
Gramchev, Todor, et al.. (2004). Sur un théorème de Cauchy–Kowalewski–Nagumo global dans des espaces de Gevrey projectifs. Comptes Rendus Mathématique. 339(10). 695–698. 1 indexed citations
11.
Biagioni, H. A. & Todor Gramchev. (2003). Fractional derivative estimates in Gevrey spaces, global regularity and decay for solutions to semilinear equations in Rn. Journal of Differential Equations. 194(1). 140–165. 16 indexed citations
12.
Gramchev, Todor, et al.. (2002). Biholomorphic maps with linear parts having Jordan blocks: linearization and resonance type phenomena.. UNICA IRIS Institutional Research Information System (University of Cagliari). 8. 8 indexed citations
13.
Gramchev, Todor, et al.. (2000). Partial differential equations : approximate solutions in scales of functional spaces. CERN Document Server (European Organization for Nuclear Research). 6 indexed citations
14.
Gramchev, Todor & Luigi Rodino. (1999). Gevrey solvability for semilinear partial differential equations with multiple characteristics. Bollettino Della Unione Matematica Italiana. 2(1). 65–120. 18 indexed citations
15.
Gramchev, Todor, et al.. (1996). Delta waves for the Burgers' equation. UNICA IRIS Institutional Research Information System (University of Cagliari). 49. 15–20. 2 indexed citations
16.
Dickinson, Detta, Todor Gramchev, & Masafumi Yoshino. (1996). First order pseudodifferential operators on the torus: Normal forms, diophantine phenomena and global hypoellipticity. ANNALI DELL UNIVERSITA DI FERRARA. 41(S1). 51–64. 7 indexed citations
17.
Gramchev, Todor & Georgi Popov. (1995). Nekhoroshev type estimates for billiard ball maps. Annales de l’institut Fourier. 45(3). 859–895. 9 indexed citations
18.
Gramchev, Todor & Masafumi Yoshino. (1995). WKB Analysis to Global Solvability and Hypoellipticity. Publications of the Research Institute for Mathematical Sciences. 31(3). 443–464. 11 indexed citations
19.
Gramchev, Todor. (1995). Entropy solutions to conservation laws with singular initial data. Nonlinear Analysis. 24(5). 721–733. 3 indexed citations
20.
Gramchev, Todor, et al.. (1991). Some note on Gevrey hypoellipticity and solvability on torus. Journal of the Mathematical Society of Japan. 43(3). 11 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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