I. Ema

1.0k total citations
51 papers, 826 citations indexed

About

I. Ema is a scholar working on Atomic and Molecular Physics, and Optics, Physical and Theoretical Chemistry and Applied Mathematics. According to data from OpenAlex, I. Ema has authored 51 papers receiving a total of 826 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Atomic and Molecular Physics, and Optics, 19 papers in Physical and Theoretical Chemistry and 14 papers in Applied Mathematics. Recurrent topics in I. Ema's work include Advanced Chemical Physics Studies (31 papers), Mathematical functions and polynomials (14 papers) and Chemical Thermodynamics and Molecular Structure (13 papers). I. Ema is often cited by papers focused on Advanced Chemical Physics Studies (31 papers), Mathematical functions and polynomials (14 papers) and Chemical Thermodynamics and Molecular Structure (13 papers). I. Ema collaborates with scholars based in Spain, India and Germany. I. Ema's co-authors include R. López, G. Ramı́rez, J. Fernández Rico, Alfredo Aguado, David Zorrilla, José M. Garcı́a de la Vega, E. Otto Steinborn, Herbert H. H. Homeier, Anmol Kumar and Sachin D. Yeole and has published in prestigious journals such as The Journal of Chemical Physics, Physical Review A and Journal of Computational Chemistry.

In The Last Decade

I. Ema

47 papers receiving 800 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
I. Ema Spain 18 539 251 249 159 102 51 826
G. Ramı́rez Spain 22 613 1.1× 318 1.3× 342 1.4× 230 1.4× 94 0.9× 70 1.1k
J. Fernández Rico Spain 22 728 1.4× 365 1.5× 384 1.5× 206 1.3× 113 1.1× 68 1.1k
R. López Spain 23 682 1.3× 374 1.5× 386 1.6× 289 1.8× 190 1.9× 98 1.4k
Valerio Magnasco Italy 15 730 1.4× 116 0.5× 94 0.4× 95 0.6× 84 0.8× 109 924
Philip E. Hoggan France 14 405 0.8× 78 0.3× 270 1.1× 32 0.2× 160 1.6× 51 641
C. S. Sharma United Kingdom 15 391 0.7× 76 0.3× 77 0.3× 32 0.2× 105 1.0× 86 783
J. Rys United States 6 684 1.3× 179 0.7× 52 0.2× 129 0.8× 160 1.6× 6 936
Kiyosi O-ohata Japan 6 345 0.6× 92 0.4× 72 0.3× 75 0.5× 65 0.6× 10 479
Charles A. Weatherford United States 16 448 0.8× 41 0.2× 57 0.2× 56 0.4× 313 3.1× 69 752
Tomislav P. Živković Croatia 15 269 0.5× 126 0.5× 23 0.1× 342 2.2× 145 1.4× 74 929

Countries citing papers authored by I. Ema

Since Specialization
Citations

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

Fields of papers citing papers by I. Ema

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of I. Ema

This figure shows the co-authorship network connecting the top 25 collaborators of I. Ema. A scholar is included among the top collaborators of I. Ema 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 I. Ema. I. Ema 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.
Ema, I., G. Ramı́rez, R. López, & José M. Garcı́a de la Vega. (2025). Serially improved Gaussian-type orbitals for molecular calculations containing third-row atoms. Physical review. A. 111(2).
2.
Ema, I., J. San Fabián, Guillermo Ramírez, Rafael López, & José M. Garcı́a de la Vega. (2025). Reduced SIGMA Basis Sets: a new family of SIGMA basis sets for molecular calculations. ArXiv.org.
3.
Ema, I., G. Ramı́rez, R. López, & José M. Garcı́a de la Vega. (2023). Serially improved GTOs for molecular applications (SIGMA): Basis sets from H to Ne. The Journal of Chemical Physics. 158(24). 2 indexed citations
4.
Ema, I., G. Ramı́rez, R. López, J. San Fabián, & José M. Garcı́a de la Vega. (2023). The Challenge of ab Initio Calculations in Small Neon Clusters. ChemPhysChem. 24(24). e202300485–e202300485. 3 indexed citations
5.
Ema, I., et al.. (2022). Accurate Hellmann–Feynman forces from density functional calculations with augmented Gaussian basis sets. The Journal of Chemical Physics. 158(1). 14104–14104. 10 indexed citations
6.
Ema, I., G. Ramı́rez, R. López, & José M. Garcı́a de la Vega. (2022). Generation of Basis Sets for Accurate Molecular Calculations: Application to Helium Atom and Dimer. Computation. 10(5). 65–65. 4 indexed citations
7.
Fabián, J. San, I. Ema, Salama Omar, & José M. Garcı́a de la Vega. (2021). Toward a Computational NMR Procedure for Modeling Dipeptide Side-Chain Conformation. Journal of Chemical Information and Modeling. 61(12). 6012–6023. 1 indexed citations
8.
López, R., et al.. (2019). Efficient Evaluation of Molecular Electrostatic Potential in Large Systems. Computation. 7(4). 64–64. 3 indexed citations
9.
Rico, J. Fernández, R. López, I. Ema, & G. Ramı́rez. (2008). Three‐center Coulomb repulsion integrals with Slater functions. International Journal of Quantum Chemistry. 108(9). 1415–1421. 4 indexed citations
10.
Rico, J. Fernández, R. López, I. Ema, & G. Ramı́rez. (2007). Generation of basis sets with high degree of fulfillment of the Hellmann‐Feynman theorem. Journal of Computational Chemistry. 28(4). 748–758. 5 indexed citations
11.
Ema, I., R. López, J.J. Fernández, G. Ramı́rez, & J. Fernández Rico. (2007). Auxiliary functions for molecular integrals with Slater‐type orbitals. II. Gauss transform methods. International Journal of Quantum Chemistry. 108(1). 25–39. 8 indexed citations
12.
Rico, J. Fernández, R. López, I. Ema, & G. Ramı́rez. (2005). Translation of STO charge distributions. Journal of Computational Chemistry. 26(8). 846–855. 13 indexed citations
13.
Rico, J. Fernández, R. López, G. Ramı́rez, I. Ema, & Eduardo V. Ludeña. (2004). Analytical method for the representation of atoms‐in‐molecules densities. Journal of Computational Chemistry. 25(11). 1355–1363. 32 indexed citations
14.
Rico, J. Fernández, R. López, I. Ema, & G. Ramı́rez. (2004). Electrostatic potentials and fields from density expansions of deformed atoms in molecules. Journal of Computational Chemistry. 25(11). 1347–1354. 23 indexed citations
15.
Rico, J. Fernández, R. López, I. Ema, & G. Ramı́rez. (2004). Efficiency of the algorithms for the calculation of Slater molecular integrals in polyatomic molecules. Journal of Computational Chemistry. 25(16). 1987–1994. 44 indexed citations
16.
Rico, J. Fernández, R. López, I. Ema, & G. Ramı́rez. (2004). Accuracy of the electrostatic theorem for high‐quality Slater and Gaussian basis sets. International Journal of Quantum Chemistry. 100(2). 221–230. 6 indexed citations
17.
Ema, I., José M. Garcı́a de la Vega, G. Ramı́rez, et al.. (2003). Polarized basis sets of Slater‐type orbitals: H to Ne atoms. Journal of Computational Chemistry. 24(7). 859–868. 54 indexed citations
18.
Rico, J. Fernández, R. López, G. Ramı́rez, & I. Ema. (2001). Correspondence between GTO and STO molecular basis sets. Journal of Computational Chemistry. 22(14). 1655–1665. 3 indexed citations
19.
Ema, I., et al.. (2000). Four-center integrals for Gaussian and exponential functions. International Journal of Quantum Chemistry. 81(1). 16–28. 37 indexed citations
20.
Ema, I., et al.. (1999). EXPONENTIAL-TYPE BASIS FUNCTIONS: SINGLE- AND DOUBLE-ZETA B FUNCTION BASIS SETS FOR THE GROUND STATES OF NEUTRAL ATOMS FROM Z = 2 TO Z = 36. Atomic Data and Nuclear Data Tables. 72(1). 57–99. 18 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by G. Ramı́rez Breakdown of academic impact, for papers by J. Fernández Rico Breakdown of academic impact, for papers by R. López Breakdown of academic impact, for papers by Valerio Magnasco Breakdown of academic impact, for papers by Philip E. Hoggan Breakdown of academic impact, for papers by C. S. Sharma Breakdown of academic impact, for papers by J. Rys Breakdown of academic impact, for papers by Kiyosi O-ohata Breakdown of academic impact, for papers by Charles A. Weatherford Breakdown of academic impact, for papers by Tomislav P. Živković
Rankless by CCL
2026