Lance L. Littlejohn

1.7k total citations
89 papers, 1.1k citations indexed

About

Lance L. Littlejohn is a scholar working on Applied Mathematics, Mathematical Physics and Computational Theory and Mathematics. According to data from OpenAlex, Lance L. Littlejohn has authored 89 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Applied Mathematics, 51 papers in Mathematical Physics and 22 papers in Computational Theory and Mathematics. Recurrent topics in Lance L. Littlejohn's work include Mathematical functions and polynomials (60 papers), Spectral Theory in Mathematical Physics (49 papers) and Differential Equations and Boundary Problems (23 papers). Lance L. Littlejohn is often cited by papers focused on Mathematical functions and polynomials (60 papers), Spectral Theory in Mathematical Physics (49 papers) and Differential Equations and Boundary Problems (23 papers). Lance L. Littlejohn collaborates with scholars based in United States, United Kingdom and South Korea. Lance L. Littlejohn's co-authors include K.H. Kwon, W. N. Everitt, Allan M. Krall, George E. Andrews, Wolfgang Gawronski, Gang-Joon Yoon, Clemens Markett, R. P. Kanwal, Francisco Marcellán and W. D. Evans and has published in prestigious journals such as Journal of Mathematical Analysis and Applications, Transactions of the American Mathematical Society and American Mathematical Monthly.

In The Last Decade

Lance L. Littlejohn

88 papers receiving 914 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Lance L. Littlejohn United States 20 861 413 273 249 209 89 1.1k
Евгений Андреевич Рахманов United States 17 988 1.1× 242 0.6× 218 0.8× 144 0.6× 192 0.9× 24 1.1k
P. Maroni France 20 1.2k 1.5× 119 0.3× 433 1.6× 411 1.7× 374 1.8× 60 1.4k
В. Н. Сорокин Russia 13 503 0.6× 99 0.2× 219 0.8× 209 0.8× 136 0.7× 61 741
G. López Lagomasino Spain 17 833 1.0× 168 0.4× 122 0.4× 118 0.5× 181 0.9× 91 936
Franz Peherstorfer Austria 21 911 1.1× 287 0.7× 181 0.7× 181 0.7× 353 1.7× 97 1.1k
A A Gonchar Russia 12 685 0.8× 179 0.4× 129 0.5× 82 0.3× 126 0.6× 39 812
Sergey Pavlovich Suetin Russia 20 1.1k 1.2× 222 0.5× 185 0.7× 106 0.4× 208 1.0× 121 1.3k
Mizan Rahman Canada 16 457 0.5× 66 0.2× 156 0.6× 107 0.4× 92 0.4× 51 614
W. A. Al‐Salam Canada 16 957 1.1× 93 0.2× 220 0.8× 150 0.6× 132 0.6× 61 1.2k
E. Godoy Spain 15 650 0.8× 51 0.1× 258 0.9× 233 0.9× 249 1.2× 62 752

Countries citing papers authored by Lance L. Littlejohn

Since Specialization
Citations

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

Fields of papers citing papers by Lance L. Littlejohn

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Lance L. Littlejohn. 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 Lance L. Littlejohn. The network helps show where Lance L. Littlejohn may publish in the future.

Co-authorship network of co-authors of Lance L. Littlejohn

This figure shows the co-authorship network connecting the top 25 collaborators of Lance L. Littlejohn. A scholar is included among the top collaborators of Lance L. Littlejohn 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 Lance L. Littlejohn. Lance L. Littlejohn 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.
Gesztesy, Fritz, et al.. (2024). The Jacobi Operator on $$(-1,1)$$ and Its Various m-Functions. Complex Analysis and Operator Theory. 18(7). 1 indexed citations
2.
Gesztesy, Fritz, et al.. (2024). Donoghue 𝑚-functions for Singular Sturm–Liouville operators. St Petersburg Mathematical Journal. 35(1). 101–138. 2 indexed citations
3.
Gesztesy, Fritz, et al.. (2022). The Krein–Von Neumann Extension Revisited. The Scholarship East Carolina University's Institutional Repository (East Carolina University). 5 indexed citations
4.
Gawronski, Wolfgang, et al.. (2015). On the asymptotic normality of the Legendre–Stirling numbers of the second kind. European Journal of Combinatorics. 49. 218–231. 8 indexed citations
5.
Kwon, K.H., et al.. (2014). Diagonalizability and symmetrizability of Sobolev-type bilinear forms: A combinatorial approach. Linear Algebra and its Applications. 460. 111–124. 2 indexed citations
6.
Littlejohn, Lance L., et al.. (2014). A spectral study of the second-order exceptional X1-Jacobi differential expression and a related non-classical Jacobi differential expression. Journal of Mathematical Analysis and Applications. 422(1). 212–239. 4 indexed citations
7.
Andrews, George E., Wolfgang Gawronski, & Lance L. Littlejohn. (2011). The Legendre–Stirling numbers. Discrete Mathematics. 311(14). 1255–1272. 29 indexed citations
8.
Littlejohn, Lance L., et al.. (2009). Left-definite theory with applications to orthogonal polynomials. Journal of Computational and Applied Mathematics. 233(6). 1380–1398. 5 indexed citations
9.
Everitt, W. N., Clemens Markett, & Lance L. Littlejohn. (2009). Properties of the solutions of the fourth-order Bessel-type differential equation. Journal of Mathematical Analysis and Applications. 359(1). 252–264. 10 indexed citations
10.
Andrews, George E. & Lance L. Littlejohn. (2009). A combinatorial interpretation of the Legendre-Stirling numbers. Proceedings of the American Mathematical Society. 137(8). 2581–2590. 37 indexed citations
11.
Kwon, K.H., Lance L. Littlejohn, & Gang-Joon Yoon. (2009). Ghost matrices and a characterization of symmetric Sobolev bilinear forms. Linear Algebra and its Applications. 431(1-2). 104–119. 7 indexed citations
12.
Littlejohn, Lance L. & Anton Zettl. (2007). Left-definite variations of the classical Fourier expansion theorem.. 27. 124–139. 3 indexed citations
13.
Everitt, W. N., et al.. (2006). Jacobi–Stirling numbers, Jacobi polynomials, and the left-definite analysis of the classical Jacobi differential expression. Journal of Computational and Applied Mathematics. 208(1). 29–56. 52 indexed citations
14.
Garcı́a, Antonio G. & Lance L. Littlejohn. (2004). On analytic sampling theory. Journal of Computational and Applied Mathematics. 171(1-2). 235–246. 12 indexed citations
15.
Everitt, W. N., et al.. (2002). Legendre polynomials, Legendre–Stirling numbers, and the left-definite spectral analysis of the Legendre differential expression. Journal of Computational and Applied Mathematics. 148(1). 213–238. 37 indexed citations
16.
Kwon, K.H. & Lance L. Littlejohn. (1997). CLASSIFICATION OF CLASSICAL ORTHOGONAL POLYNOMIALS. Journal of the Korean Mathematical Society. 34(4). 973–1008. 35 indexed citations
17.
Kwon, K.H., et al.. (1996). SOBOLEV ORTHOGONAL POLYNOMIALS AND SECOND ORDER DIFFERENTIAL EQUATION II. Bulletin of the Korean Mathematical Society. 33(1). 135–170. 5 indexed citations
18.
Kwon, K.H., et al.. (1995). Sobolev orthogonal polynomials and spectral differential equations. Transactions of the American Mathematical Society. 347(9). 3629–3643. 6 indexed citations
19.
Everitt, W. N., et al.. (1995). The symmetric form of the Koekoeks' Laguerre type differential equation. Journal of Computational and Applied Mathematics. 57(1-2). 115–121. 5 indexed citations
20.
Kwon, K.H., et al.. (1994). Characterization of classical type orthogonal polynomials. Proceedings of the American Mathematical Society. 120(2). 485–493. 3 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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