Lap M. Cheung

1.9k total citations
32 papers, 1.6k citations indexed

About

Lap M. Cheung is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Atmospheric Science. According to data from OpenAlex, Lap M. Cheung has authored 32 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Atomic and Molecular Physics, and Optics, 14 papers in Spectroscopy and 7 papers in Atmospheric Science. Recurrent topics in Lap M. Cheung's work include Atomic and Molecular Physics (18 papers), Advanced Chemical Physics Studies (17 papers) and Atmospheric Ozone and Climate (7 papers). Lap M. Cheung is often cited by papers focused on Atomic and Molecular Physics (18 papers), Advanced Chemical Physics Studies (17 papers) and Atmospheric Ozone and Climate (7 papers). Lap M. Cheung collaborates with scholars based in Canada and United States. Lap M. Cheung's co-authors include David M. Bishop, Klaus Ruedenberg, Stephen T. Elbert, Kenneth R. Sundberg, A. D. Buckingham and Gerd M. Rosenblatt and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and Chemical Physics Letters.

In The Last Decade

Lap M. Cheung

32 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Lap M. Cheung Canada	18	1.3k	521	198	190	156	32	1.6k
R.E. Moss United Kingdom	24	1.5k 1.2×	728 1.4×	221 1.1×	195 1.0×	72 0.5×	75	1.9k
Juergen Hinze Germany	22	1.6k 1.3×	584 1.1×	220 1.1×	264 1.4×	203 1.3×	55	1.9k
E. A. McCullough United States	21	1.1k 0.9×	336 0.6×	121 0.6×	167 0.9×	130 0.8×	40	1.3k
R. A. Bernheim United States	27	1.4k 1.1×	958 1.8×	122 0.6×	215 1.1×	315 2.0×	101	2.2k
C. W. Kern United States	26	1.4k 1.1×	718 1.4×	189 1.0×	393 2.1×	262 1.7×	71	2.0k
Richard M. Stevens United States	19	1.3k 1.0×	641 1.2×	112 0.6×	281 1.5×	200 1.3×	26	1.6k
T. E. Gough Canada	22	1.2k 1.0×	831 1.6×	369 1.9×	207 1.1×	153 1.0×	74	1.8k
G. Das United States	21	1.5k 1.2×	441 0.8×	179 0.9×	285 1.5×	291 1.9×	55	1.8k
Jan Geertsen United States	20	1.5k 1.2×	731 1.4×	184 0.9×	278 1.5×	219 1.4×	29	1.7k
Jacek Rychlewski Poland	29	1.9k 1.5×	882 1.7×	299 1.5×	231 1.2×	145 0.9×	80	2.3k

Countries citing papers authored by Lap M. Cheung

Since Specialization

Citations

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

Fields of papers citing papers by Lap M. Cheung

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Lap M. Cheung. 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 Lap M. Cheung. The network helps show where Lap M. Cheung may publish in the future.

Co-authorship network of co-authors of Lap M. Cheung

This figure shows the co-authorship network connecting the top 25 collaborators of Lap M. Cheung. A scholar is included among the top collaborators of Lap M. Cheung 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 Lap M. Cheung. Lap M. Cheung 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

Bishop, David M. & Lap M. Cheung. (1984). An adiabatic study of the X 1Σ+ and A 1Σ+ states of BeH+. The Journal of Chemical Physics. 80(9). 4341–4346. 10 indexed citations

Bishop, David M. & Lap M. Cheung. (1983). The properties of LiH in its ground and first excited electronic state. The Journal of Chemical Physics. 79(6). 2945–2950. 16 indexed citations

Bishop, David M. & Lap M. Cheung. (1983). An adiabatic study of the X 1Σ+ state of LiH. The Journal of Chemical Physics. 78(3). 1396–1403. 43 indexed citations

Bishop, David M. & Lap M. Cheung. (1983). An adiabatic study of the A 1Σ+ state of LiH. The Journal of Chemical Physics. 78(12). 7265–7269. 31 indexed citations

Bishop, David M. & Lap M. Cheung. (1982). Vibrational Contributions to Molecular Dipole Polarizabilities. Journal of Physical and Chemical Reference Data. 11(1). 119–133. 144 indexed citations

Bishop, David M. & Lap M. Cheung. (1981). Magnetic properties of HeH+. The Journal of Chemical Physics. 74(3). 1817–1820. 1 indexed citations

Bishop, David M. & Lap M. Cheung. (1981). Radiative corrections for the hydrogen molecular ion HD+. The Journal of Chemical Physics. 75(6). 3155–3155. 14 indexed citations

Bishop, David M. & Lap M. Cheung. (1981). An accurate calculation of the energy of the lowest bound triplet state of hydrogen. Chemical Physics Letters. 79(1). 130–132. 15 indexed citations

Bishop, David M. & Lap M. Cheung. (1980). Dynamic dipole polarizability of H2 and HeH+. The Journal of Chemical Physics. 72(9). 5125–5132. 92 indexed citations

10.

Bishop, David M. & Lap M. Cheung. (1979). Static higher polarizabilities ofH2. Physical review. A, General physics. 20(4). 1310–1312. 19 indexed citations

11.

Cheung, Lap M., Kenneth R. Sundberg, & Klaus Ruedenberg. (1979). Electronic rearrangements during chemical reactions. II. Planar dissociation of ethylene. International Journal of Quantum Chemistry. 16(5). 1103–1139. 126 indexed citations

12.

Bishop, David M. & Lap M. Cheung. (1979). A theoretical investigation of HeH+. Journal of Molecular Spectroscopy. 75(3). 462–473. 107 indexed citations

13.

Bishop, David M. & Lap M. Cheung. (1979). Quadrupole moment of the deuteron from a precise calculation of the electric field gradient inD2. Physical review. A, General physics. 20(2). 381–384. 145 indexed citations

14.

Ruedenberg, Klaus, Lap M. Cheung, & Stephen T. Elbert. (1979). MCSCF optimization through combined use of natural orbitals and the brillouin–levy–berthier theorem. International Journal of Quantum Chemistry. 16(5). 1069–1101. 286 indexed citations

15.

Bishop, David M. & Lap M. Cheung. (1979). Natural orbital analysis of nonadiabatic H₂⁺ wave functions. International Journal of Quantum Chemistry. 15(5). 517–532. 10 indexed citations

16.

Bishop, David M. & Lap M. Cheung. (1979). Static polarizabilities at large internuclear separations for homonuclear diatomic ions. Chemical Physics Letters. 66(3). 467–470. 16 indexed citations

17.

Bishop, David M. & Lap M. Cheung. (1979). Static higher polarisabilities of H₂⁺. Journal of Physics B Atomic and Molecular Physics. 12(19). 3135–3148. 11 indexed citations

18.

Bishop, David M. & Lap M. Cheung. (1978). Moment functions (including static dipole polarisabilities) and radiative corrections for H₂⁺. Journal of Physics B Atomic and Molecular Physics. 11(18). 3133–3144. 62 indexed citations

19.

Cheung, Lap M. & David M. Bishop. (1977). The group-coordinate relaxation method for solving the generalized eigenvalue problem for large real-symmetric matrices. Computer Physics Communications. 13(4). 247–250. 9 indexed citations

20.

Ruedenberg, Klaus, et al.. (1972). Implementing the SAAP Formalism. I. Serber-Type Spin Eigenfunctions by Direct Diagonalization. The Journal of Chemical Physics. 57(7). 2787–2790. 29 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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