Gancho Tachev

492 total citations
38 papers, 314 citations indexed

About

Gancho Tachev is a scholar working on Statistics and Probability, Applied Mathematics and Numerical Analysis. According to data from OpenAlex, Gancho Tachev has authored 38 papers receiving a total of 314 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Statistics and Probability, 25 papers in Applied Mathematics and 21 papers in Numerical Analysis. Recurrent topics in Gancho Tachev's work include Approximation Theory and Sequence Spaces (35 papers), Mathematical Approximation and Integration (18 papers) and Advanced Harmonic Analysis Research (14 papers). Gancho Tachev is often cited by papers focused on Approximation Theory and Sequence Spaces (35 papers), Mathematical Approximation and Integration (18 papers) and Advanced Harmonic Analysis Research (14 papers). Gancho Tachev collaborates with scholars based in Bulgaria, India and Germany. Gancho Tachev's co-authors include Vijay Gupta, Ana Maria Acu, Vijay Gupta, Heiner Gonska, Ali̇ Aral, Ioan Gavrea, Margareta Heilmann, Radu Păltănea, Sorin G. Gal and Jürgen Prestin and has published in prestigious journals such as Journal of Mathematical Analysis and Applications, Computers & Mathematics with Applications and Applied Mathematics Letters.

In The Last Decade

Gancho Tachev

36 papers receiving 283 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gancho Tachev Bulgaria	10	284	202	188	24	22	38	314
Hüseyin Aktuğlu Cyprus	9	277 1.0×	223 1.1×	184 1.0×	18 0.8×	9 0.4×	25	307
I. A. Shevchuk Ukraine	11	233 0.8×	206 1.0×	146 0.8×	27 1.1×	41 1.9×	58	314
Qing‐Bo Cai China	11	374 1.3×	303 1.5×	188 1.0×	89 3.7×	17 0.8×	61	418
Radu Păltănea Romania	8	250 0.9×	167 0.8×	156 0.8×	33 1.4×	21 1.0×	24	281
Kejal Khatri India	10	244 0.9×	205 1.0×	196 1.0×	14 0.6×	15 0.7×	23	323
Ioan Gavrea Romania	11	203 0.7×	123 0.6×	178 0.9×	39 1.6×	48 2.2×	45	291
Akif D. Gadjiev Azerbaijan	8	540 1.9×	436 2.2×	334 1.8×	22 0.9×	18 0.8×	20	572
Arun Kajla India	15	605 2.1×	531 2.6×	303 1.6×	50 2.1×	14 0.6×	58	628
Mircea Ivan Romania	11	269 0.9×	169 0.8×	199 1.1×	43 1.8×	53 2.4×	55	348
Naim L. Braha Kosovo	13	509 1.8×	367 1.8×	332 1.8×	14 0.6×	24 1.1×	64	540

Countries citing papers authored by Gancho Tachev

Since Specialization

Citations

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

Fields of papers citing papers by Gancho Tachev

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gancho Tachev

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

Acu, Ana Maria, et al.. (2024). Approximation by perturbed Baskakov-type operators. Journal of Mathematical Inequalities. 551–563.

Gupta, Vijay, et al.. (2022). A modified Post Widder operators preserving $e^{Ax}$. Studia Universitatis Babes-Bolyai Matematica. 67(3). 599–606. 2 indexed citations

Gupta, Vijay & Gancho Tachev. (2022). Some Results on Post-Widder Operators Preserving Test Function x^r. Kragujevac Journal of Mathematics. 46(1). 149–165. 6 indexed citations

Tachev, Gancho, et al.. (2019). On two modified Phillips operators. Studia Universitatis Babes-Bolyai Matematica. 64(3). 305–312. 1 indexed citations

Aral, Ali̇ & Gancho Tachev. (2019). Quantitative Voronovskaya type theorems for a general sequence of linear positive operators. Filomat. 33(8). 2507–2518.

Gupta, Vijay, Gancho Tachev, & Ana Maria Acu. (2018). Modified Kantorovich operators with better approximation properties. Numerical Algorithms. 81(1). 125–149. 37 indexed citations

Gupta, Vijay & Gancho Tachev. (2017). Approximation with Positive Linear Operators and Linear Combinations. CERN Document Server (European Organization for Nuclear Research). 54 indexed citations

Gupta, Vijay & Gancho Tachev. (2017). On Approximation Properties of Phillips Operators Preserving Exponential Functions. Mediterranean Journal of Mathematics. 14(4). 30 indexed citations

Aral, Ali̇, Heiner Gonska, Margareta Heilmann, & Gancho Tachev. (2016). Quantitative Voronovskaya-Type Results for Polynomially Bounded Functions. Results in Mathematics. 70(3-4). 313–324. 6 indexed citations

10.

Tachev, Gancho. (2015). A Global Inverse Theorem for Combinations of Phillips Operators. Mediterranean Journal of Mathematics. 13(5). 2709–2719. 4 indexed citations

11.

Gavrea, Ioan & Gancho Tachev. (2013). On the multiplicativity of linear operators. Journal of Mathematical Analysis and Applications. 408(1). 203–208. 2 indexed citations

12.

Gal, Sorin G. & Gancho Tachev. (2013). The Lower Estimate for Bernstein Operator. Bulgarian Digital Mathematics Library (BulDML) at IMI-BAS (Institute of Mathematics and Informatics). 27. 39–51. 1 indexed citations

13.

Gonska, Heiner, Jürgen Prestin, & Gancho Tachev. (2012). A new estimate for Hölder approximation by Bernstein operators. Applied Mathematics Letters. 26(1). 43–45. 1 indexed citations

14.

Tachev, Gancho. (2012). The Rate of Approximation by Rational Bernstein Functions in Terms of Second Order Moduli of Continuity. Numerical Functional Analysis and Optimization. 33(2). 206–215. 3 indexed citations

15.

Tachev, Gancho. (2011). The complete asymptotic expansion for Bernstein operators. Journal of Mathematical Analysis and Applications. 385(2). 1179–1183. 24 indexed citations

16.

Tachev, Gancho. (2011). On multiplicativity of the Bernstein operator. Computers & Mathematics with Applications. 62(8). 3236–3240. 3 indexed citations

17.

Tachev, Gancho. (2010). Approximation of a Continuous Curve by its Bernstein-Bézier Operator. Mediterranean Journal of Mathematics. 8(3). 369–381. 4 indexed citations

18.

Tachev, Gancho. (2008). Voronovskaja's theorem revisited. Journal of Mathematical Analysis and Applications. 343(1). 399–404. 16 indexed citations

19.

Gavrea, Ioan, Gancho Tachev, Heiner Gonska, & Radu Păltănea. (2003). General estimates for the Ditzian-Totik modulus. East journal on approximations. 9(2). 175–194. 6 indexed citations

20.

Tachev, Gancho. (1995). A Note on Two Moduli of Smoothness. Journal of Approximation Theory. 81(1). 136–140. 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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