Richard H. Hammack

1.3k total citations · 1 hit paper
36 papers, 721 citations indexed

About

Richard H. Hammack is a scholar working on Computational Theory and Mathematics, Electrical and Electronic Engineering and Geometry and Topology. According to data from OpenAlex, Richard H. Hammack has authored 36 papers receiving a total of 721 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Computational Theory and Mathematics, 15 papers in Electrical and Electronic Engineering and 12 papers in Geometry and Topology. Recurrent topics in Richard H. Hammack's work include Advanced Graph Theory Research (23 papers), graph theory and CDMA systems (15 papers) and Graph theory and applications (10 papers). Richard H. Hammack is often cited by papers focused on Advanced Graph Theory Research (23 papers), graph theory and CDMA systems (15 papers) and Graph theory and applications (10 papers). Richard H. Hammack collaborates with scholars based in United States, Austria and Slovenia. Richard H. Hammack's co-authors include Wilfried Imrich, Sandi Klavžar, Paul C. Kainen, Dewey Taylor, Sarah Bendall, David T. Taylor and Heather C. Smith and has published in prestigious journals such as American Mathematical Monthly, Discrete Applied Mathematics and Discrete Mathematics.

In The Last Decade

Richard H. Hammack

32 papers receiving 683 citations

Hit Papers

Handbook of Product Graphs 2011 2026 2016 2021 2011 100 200 300 400 500
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.

  1. Handbook of Product Graphs
    2011 585 citations Richard H. Hammack, Wilfried Imrich et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Richard H. Hammack United States 7 500 267 174 164 155 36 721
Victor Chepoi France 20 987 2.0× 566 2.1× 241 1.4× 233 1.4× 137 0.9× 108 1.3k
Linda Lesniak United States 14 696 1.4× 271 1.0× 265 1.5× 297 1.8× 179 1.2× 48 920
Yousef Alavi United States 12 764 1.5× 327 1.2× 317 1.8× 231 1.4× 145 0.9× 27 1.0k
Robert E. Jamison United States 16 718 1.4× 343 1.3× 271 1.6× 111 0.7× 155 1.0× 64 995
Douglas F. Rall United States 22 1.2k 2.4× 312 1.2× 416 2.4× 213 1.3× 152 1.0× 80 1.3k
Jack E. Graver United States 15 362 0.7× 278 1.0× 256 1.5× 73 0.4× 175 1.1× 48 789
Boštjan Brešar Slovenia 20 1.3k 2.6× 370 1.4× 434 2.5× 308 1.9× 145 0.9× 123 1.5k
Dirk Vertigan United States 15 543 1.1× 227 0.9× 298 1.7× 84 0.5× 124 0.8× 30 752
Fengming Dong Singapore 11 418 0.8× 344 1.3× 207 1.2× 52 0.3× 77 0.5× 82 627
Oriol Serra Spain 13 359 0.7× 196 0.7× 338 1.9× 125 0.8× 220 1.4× 91 617

Countries citing papers authored by Richard H. Hammack

Since Specialization
Citations

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

Fields of papers citing papers by Richard H. Hammack

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Richard H. Hammack. 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 Richard H. Hammack. The network helps show where Richard H. Hammack may publish in the future.

Co-authorship network of co-authors of Richard H. Hammack

This figure shows the co-authorship network connecting the top 25 collaborators of Richard H. Hammack. A scholar is included among the top collaborators of Richard H. Hammack 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 Richard H. Hammack. Richard H. Hammack 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.
Hammack, Richard H. & Paul C. Kainen. (2021). A New View of Hypercube Genus. American Mathematical Monthly. 128(4). 352–359. 3 indexed citations
2.
Hammack, Richard H., et al.. (2020). Palindromic products. 4(1). #P1.01–#P1.01. 1 indexed citations
3.
Hammack, Richard H., et al.. (2017). Neighborhood Reconstruction and Cancellation of Graphs. The Electronic Journal of Combinatorics. 24(2).
4.
Hammack, Richard H. & Dewey Taylor. (2017). Proper connection of direct products. Discussiones Mathematicae Graph Theory. 37(4). 1005–1005.
5.
Hammack, Richard H., et al.. (2015). A prime factor theorem for bipartite graphs. European Journal of Combinatorics. 47. 123–140. 2 indexed citations
6.
Hammack, Richard H. & Wilfried Imrich. (2014). Fast recognition of direct and strong products. Ars Mathematica Contemporanea. 7(2). 487–497. 6 indexed citations
7.
Hammack, Richard H.. (2013). On uniqueness of prime bipartite factors of graphs. Discrete Mathematics. 313(9). 1018–1027. 1 indexed citations
8.
Hammack, Richard H.. (2013). Cancellation of digraphs over the direct product. European Journal of Combinatorics. 34(5). 846–858.
9.
Hammack, Richard H. & Heather C. Smith. (2012). Zero Divisors Among Digraphs. Graphs and Combinatorics. 30(1). 171–181. 2 indexed citations
10.
Hammack, Richard H., et al.. (2009). Minimum cycle bases of direct products of graphs with cycles. Ars Mathematica Contemporanea. 2(1). 101–119. 1 indexed citations
11.
Hammack, Richard H., et al.. (2008). Total Perfect Codes in Tensor Products of Graphs.. Ars Combinatoria. 88(29). eabo4459–eabo4459. 11 indexed citations
12.
Hammack, Richard H.. (2008). Proof of a conjecture concerning the direct product of bipartite graphs. European Journal of Combinatorics. 30(5). 1114–1118. 5 indexed citations
13.
Hammack, Richard H.. (2008). A cancellation property for direct product. Discussiones Mathematicae Graph Theory. 28(1). 179–179. 4 indexed citations
14.
Hammack, Richard H.. (2008). On direct product cancellation of graphs. Discrete Mathematics. 309(8). 2538–2543. 10 indexed citations
15.
Hammack, Richard H.. (2007). A Geometric View of Complex Trigonometric Functions. College Mathematics Journal. 38(3). 210–217. 3 indexed citations
16.
Hammack, Richard H.. (2006). Minimum cycle bases of direct products of bipartite graphs.. Australas. J Comb.. 36. 213–222. 8 indexed citations
17.
Hammack, Richard H.. (2006). Isomorphic components of direct products of bipartite graphs. Discussiones Mathematicae Graph Theory. 26(2). 231–231. 4 indexed citations
18.
Hammack, Richard H., et al.. (2005). Centers of Tensor Products of Graphs.. Ars Combinatoria. 74. 10 indexed citations
19.
Hammack, Richard H., et al.. (2005). Alternating series convergence: a visual proof. Teaching Mathematics and its Applications An International Journal of the IMA. 25(2). 58–60. 3 indexed citations
20.
Hammack, Richard H.. (2002). A note on the complexity of computing cyclicity.. Ars Combinatoria. 63. 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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