Ricardo Almeida

4.8k total citations · 2 hit papers
101 papers, 3.4k citations indexed

About

Ricardo Almeida is a scholar working on Modeling and Simulation, Applied Mathematics and Numerical Analysis. According to data from OpenAlex, Ricardo Almeida has authored 101 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Modeling and Simulation, 56 papers in Applied Mathematics and 41 papers in Numerical Analysis. Recurrent topics in Ricardo Almeida's work include Fractional Differential Equations Solutions (71 papers), Nonlinear Differential Equations Analysis (45 papers) and Iterative Methods for Nonlinear Equations (23 papers). Ricardo Almeida is often cited by papers focused on Fractional Differential Equations Solutions (71 papers), Nonlinear Differential Equations Analysis (45 papers) and Iterative Methods for Nonlinear Equations (23 papers). Ricardo Almeida collaborates with scholars based in Portugal, Poland and Bulgaria. Ricardo Almeida's co-authors include Delfim F. M. Torres, M. Teresa T. Monteiro, Agnieszka B. Malinowska, Dina Tavares, Shakoor Pooseh, Tatiana Odzijewicz, Nuno R. O. Bastos, Natália Martins, Artur M. C. Brito da Cruz and M. Luísa Morgado and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of the Franklin Institute and Journal of Mathematical Analysis and Applications.

In The Last Decade

Ricardo Almeida

93 papers receiving 3.2k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

A Caputo fractional derivative of a function with respect to another function

2016 825 citations Ricardo Almeida profile →
Fractional differential equations with a Caputo derivative with respect to a Kernel function and their applications

2017 248 citations Ricardo Almeida, Agnieszka B. Malinowska et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ricardo Almeida Portugal	28	2.9k	1.9k	1.3k	476	423	101	3.4k
Virginia Kiryakova Bulgaria	25	2.7k 0.9×	1.8k 0.9×	1.2k 0.9×	478 1.0×	609 1.4×	74	3.6k
C. Ravichandran India	36	2.3k 0.8×	1.7k 0.9×	824 0.6×	526 1.1×	418 1.0×	94	2.7k
Sina Etemad Iran	31	2.9k 1.0×	2.2k 1.1×	943 0.7×	269 0.6×	468 1.1×	169	3.5k
E. Capelas de Oliveira Brazil	28	2.6k 0.9×	2.1k 1.1×	973 0.7×	333 0.7×	590 1.4×	129	3.5k
Cemil Tunç Türkiye	31	1.3k 0.5×	1.9k 1.0×	1.3k 1.0×	736 1.5×	505 1.2×	297	3.1k
Varsha Daftardar‐Gejji India	33	3.5k 1.2×	1.4k 0.7×	2.2k 1.7×	374 0.8×	1.3k 3.0×	61	4.2k
Rahmat Ali Khan Pakistan	30	2.2k 0.8×	1.7k 0.9×	1.4k 1.1×	220 0.5×	350 0.8×	136	2.7k
Roberto Garrappa Italy	25	2.0k 0.7×	598 0.3×	1.1k 0.9×	388 0.8×	490 1.2×	66	2.7k
A. S. Vatsala United States	18	1.8k 0.6×	2.3k 1.2×	1.4k 1.1×	383 0.8×	152 0.4×	97	2.9k
Paul W. Eloe United States	24	1.6k 0.5×	2.5k 1.3×	1.4k 1.1×	349 0.7×	263 0.6×	133	3.1k

Countries citing papers authored by Ricardo Almeida

Since Specialization

Citations

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

Fields of papers citing papers by Ricardo Almeida

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ricardo Almeida

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

Almeida, Ricardo, et al.. (2024). On the stability of memory-dependent multi-agent systems under DoS attacks. Journal of the Franklin Institute. 362(1). 107402–107402.

Almeida, Ricardo, Natália Martins, & J. Vanterler da C. Sousa. (2024). Fractional tempered differential equations depending on arbitrary kernels. AIMS Mathematics. 9(4). 9107–9127. 2 indexed citations

Roche, Pablo La, et al.. (2022). Implementation of a Dynamic Thermal and Illuminance Control System in Responsive Façades: Shading Study. 3(3). 1–15. 1 indexed citations

Almeida, Ricardo, Ravi P. Agarwal, Snezhana Hristova, & Donal O’Regan. (2022). Stability of Gene Regulatory Networks Modeled by Generalized Proportional Caputo Fractional Differential Equations. Entropy. 24(3). 372–372. 9 indexed citations

Almeida, Ricardo & Natália Martins. (2021). A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter. Fractal and Fractional. 5(1). 24–24. 6 indexed citations

Almeida, Ricardo, Snezhana Hristova, & Stepan Tersian. (2021). Synchronization of Caputo fractional neural networks with bounded time variable delays. Open Mathematics. 19(1). 388–399.

Almeida, Ricardo, Natália Martins, & Cristiana J. Silva. (2021). Global Stability Condition for the Disease-Free Equilibrium Point of Fractional Epidemiological Models. Axioms. 10(4). 238–238. 5 indexed citations

Agarwal, Ravi P., Snezhana Hristova, Donal O’Regan, & Ricardo Almeida. (2021). Approximate Iterative Method for Initial Value Problem of Impulsive Fractional Differential Equations with Generalized Proportional Fractional Derivatives. Mathematics. 9(16). 1979–1979. 2 indexed citations

Almeida, Ricardo, Ravi P. Agarwal, Snezhana Hristova, & Donal O’Regan. (2021). Quadratic Lyapunov Functions for Stability of the Generalized Proportional Fractional Differential Equations with Applications to Neural Networks. Axioms. 10(4). 322–322. 14 indexed citations

10.

Almeida, Ricardo, Rafał Kamocki, Agnieszka B. Malinowska, & Tatiana Odzijewicz. (2020). Optimal leader-following consensus of fractional opinion formation models. Journal of Computational and Applied Mathematics. 381. 112996–112996. 7 indexed citations

11.

Almeida, Ricardo, Snezhana Hristova, & Sergey Dashkovskiy. (2020). Uniform bounded input bounded output stability of fractional‐order delay nonlinear systems with input. International Journal of Robust and Nonlinear Control. 31(1). 225–249. 7 indexed citations

12.

Almeida, Ricardo, Ewa Girejko, Snezhana Hristova, & Agnieszka B. Malinowska. (2020). On Leader-Following Consensus in Multi-Agent Systems with Discrete Updates at Random Times. Entropy. 22(6). 650–650. 3 indexed citations

13.

Soares, Melina, et al.. (2019). Uso de Metodologias Criativas no Processo de Ensino da Disciplina Engenharia de Requisitos. 1 indexed citations

14.

Agarwal, Ravi P., Ricardo Almeida, Snezhana Hristova, & Donal O’Regan. (2019). Caputo fractional differential equation with state dependent delay and practical stability. Dynamic Systems and Applications. 28(3). 715–742. 6 indexed citations

15.

Almeida, Ricardo, Nuno R. O. Bastos, & M. Teresa T. Monteiro. (2018). A fractional Malthusian growth model with variable order using an optimization approach. Statistics Optimization & Information Computing. 6(1). 19 indexed citations

16.

Almeida, Ricardo, et al.. (2016). A remark on local fractional calculus and ordinary derivatives. SHILAP Revista de lepidopterología. 56 indexed citations

17.

Pooseh, Shakoor, Ricardo Almeida, & Delfim F. M. Torres. (2013). A discrete time method to the first variation of fractional order variational functionals. SHILAP Revista de lepidopterología. 12 indexed citations

18.

Almeida, Ricardo & Delfim F. M. Torres. (2009). Calculus of variations with fractional derivatives and fractional integrals. Applied Mathematics Letters. 22(12). 1816–1820. 129 indexed citations

19.

Almeida, Ricardo. (2008). A mean value theorem for internal functions and an estimation for the diifferential mean point. Novi Sad Journal of Mathematics. 38(2). 57–64.

20.

Almeida, Ricardo. (2008). An elementary proof of a converse mean-value theorem. International Journal of Mathematical Education in Science and Technology. 39(8). 1110–1111. 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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