R. Roopkumar

564 total citations
54 papers, 437 citations indexed

About

R. Roopkumar is a scholar working on Applied Mathematics, Computer Vision and Pattern Recognition and Signal Processing. According to data from OpenAlex, R. Roopkumar has authored 54 papers receiving a total of 437 indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Applied Mathematics, 25 papers in Computer Vision and Pattern Recognition and 12 papers in Signal Processing. Recurrent topics in R. Roopkumar's work include Mathematical Analysis and Transform Methods (39 papers), Image and Signal Denoising Methods (24 papers) and Digital Filter Design and Implementation (12 papers). R. Roopkumar is often cited by papers focused on Mathematical Analysis and Transform Methods (39 papers), Image and Signal Denoising Methods (24 papers) and Digital Filter Design and Implementation (12 papers). R. Roopkumar collaborates with scholars based in India, Spain and United States. R. Roopkumar's co-authors include M. Meenakshi, E. R. Negrín and Ahmed I. Zayed and has published in prestigious journals such as SHILAP Revista de lepidopterología, Electronics Letters and Applied Mathematics and Computation.

In The Last Decade

R. Roopkumar

49 papers receiving 398 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R. Roopkumar India	13	349	234	137	48	44	54	437
R. S. Pathak India	13	410 1.2×	196 0.8×	89 0.6×	142 3.0×	6 0.1×	68	528
J. Morais Portugal	13	524 1.5×	152 0.6×	138 1.0×	29 0.6×	6 0.1×	62	586
Fabio Nicola Italy	15	593 1.7×	105 0.4×	64 0.5×	453 9.4×	16 0.4×	75	703
Yurii Lyubarskii Norway	13	360 1.0×	126 0.5×	83 0.6×	103 2.1×	10 0.2×	39	470
Radouan Daher Morocco	11	517 1.5×	100 0.4×	76 0.6×	139 2.9×	5 0.1×	139	540
Antonio G. Garcı́a Spain	11	396 1.1×	141 0.6×	85 0.6×	129 2.7×	30 0.7×	64	501
Abderrazek Karoui Tunisia	9	143 0.4×	92 0.4×	30 0.2×	40 0.8×	20 0.5×	34	247
Elena Cordero Italy	17	846 2.4×	265 1.1×	139 1.0×	463 9.6×	17 0.4×	68	929
Murad Özaydın United States	11	167 0.5×	117 0.5×	102 0.7×	89 1.9×	37 0.8×	22	368
Lawrence W. Baggett United States	12	270 0.8×	165 0.7×	45 0.3×	196 4.1×	6 0.1×	33	446

Countries citing papers authored by R. Roopkumar

Since Specialization

Citations

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

Fields of papers citing papers by R. Roopkumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Roopkumar

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

Roopkumar, R., et al.. (2025). A Generalization of the Fractional Stockwell Transform. Fractal and Fractional. 9(3). 166–166.

Roopkumar, R., et al.. (2025). A novel special affine convolution and short time special affine Fourier transform. Integral Transforms and Special Functions. 37(3). 169–192.

Roopkumar, R., et al.. (2024). Multidimensional Generalized Fractional $${\pmb {S}}$$ Transform. Advances in Applied Clifford Algebras. 34(3). 2 indexed citations

Negrín, E. R. & R. Roopkumar. (2022). Generalized Lambert-type transforms over integrable Boehmians. Integral Transforms and Special Functions. 33(9). 698–710. 3 indexed citations

Roopkumar, R., et al.. (2021). On the extension of the coupled fractional Fourier transform and its properties. Integral Transforms and Special Functions. 33(1). 65–80. 14 indexed citations

Roopkumar, R.. (2021). Quaternionic short-time fractional Fourier transform. International Journal of Applied and Computational Mathematics. 7(3). 3 indexed citations

Roopkumar, R.. (2021). One-Dimensional Quaternionic Special Affine Fourier Transform. Advances in Applied Clifford Algebras. 31(5). 8 indexed citations

Negrín, E. R., et al.. (2020). The Lambert transform over distributions of compact support, $$L^1$$-functions and Boehmian spaces. Annals of Functional Analysis. 12(1). 2 indexed citations

Roopkumar, R., et al.. (2015). Curvelet transform on tempered distributions. Asian-European Journal of Mathematics. 8(2). 1550031–1550031. 6 indexed citations

10.

Roopkumar, R., et al.. (2014). Fuzzy Perfect Mappings andQ-Compactness in Smooth Fuzzy Topological Spaces. Fuzzy Information and Engineering. 6(1). 115–131. 1 indexed citations

11.

Roopkumar, R., et al.. (2014). Curvelet transform on periodic distributions. Integral Transforms and Special Functions. 25(11). 874–887. 6 indexed citations

12.

Roopkumar, R.. (2013). On extension of Gabor transform to Boehmians. Matematički Vesnik. 65(254). 431–444. 3 indexed citations

13.

Roopkumar, R., et al.. (2013). FOURIER SINE AND COSINE TRANSFORMS ON BOEHMIAN SPACES. Asian-European Journal of Mathematics. 6(1). 1350005–1350005. 2 indexed citations

14.

Roopkumar, R., et al.. (2013). Curvelet transform for Boehmians. SHILAP Revista de lepidopterología. 20(2). 264–279. 11 indexed citations

15.

Roopkumar, R., et al.. (2012). Some results on fuzzy proper functions and connectedness in smooth fuzzy topological spaces. Mathematica Bohemica. 137(3). 311–332. 2 indexed citations

16.

Roopkumar, R.. (2010). Ridgelet transform on tempered distributions. Commentationes Mathematicae Universitatis Carolinae. 51(3). 431–439. 4 indexed citations

17.

Roopkumar, R. & E. R. Negrín. (2010). Poisson transform on Boehmians. Applied Mathematics and Computation. 216(9). 2740–2748. 11 indexed citations

18.

Roopkumar, R.. (2009). CONVOLUTION THEOREMS FOR WAVELET TRANSFORM ON TEMPERED DISTRIBUTIONS AND THEIR EXTENSION TO TEMPERED BOEHMIANS. Asian-European Journal of Mathematics. 2(1). 117–127. 9 indexed citations

19.

Roopkumar, R.. (2006). Generalized Radon Transform. Rocky Mountain Journal of Mathematics. 36(4). 22 indexed citations

20.

Roopkumar, R., et al.. (2002). Boehmians and Their Hilbert Transforms. Integral Transforms and Special Functions. 13(2). 131–141. 12 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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