James S. Howland

1.4k total citations
48 papers, 830 citations indexed

About

James S. Howland is a scholar working on Mathematical Physics, Computational Theory and Mathematics and Statistical and Nonlinear Physics. According to data from OpenAlex, James S. Howland has authored 48 papers receiving a total of 830 indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Mathematical Physics, 19 papers in Computational Theory and Mathematics and 15 papers in Statistical and Nonlinear Physics. Recurrent topics in James S. Howland's work include Spectral Theory in Mathematical Physics (29 papers), Quantum chaos and dynamical systems (15 papers) and Matrix Theory and Algorithms (14 papers). James S. Howland is often cited by papers focused on Spectral Theory in Mathematical Physics (29 papers), Quantum chaos and dynamical systems (15 papers) and Matrix Theory and Algorithms (14 papers). James S. Howland collaborates with scholars based in United States. James S. Howland's co-authors include Ira Herbst, Barry Simon, J. E. Avron, Gary Matthews, Jeph Herrin and Tosio Kato and has published in prestigious journals such as Communications in Mathematical Physics, Journal of Mathematical Analysis and Applications and Transactions of the American Mathematical Society.

In The Last Decade

James S. Howland

42 papers receiving 644 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
James S. Howland United States	17	482	353	338	186	141	48	830
Friedrich Gesztesy Norway	2	676 1.4×	462 1.3×	402 1.2×	260 1.4×	131 0.9×	2	1.0k
William G. Faris United States	14	482 1.0×	158 0.4×	202 0.6×	205 1.1×	228 1.6×	40	792
Werner O. Amrein Switzerland	12	555 1.2×	231 0.7×	200 0.6×	194 1.0×	227 1.6×	30	794
B. S. Pavlov Russia	17	553 1.1×	296 0.8×	211 0.6×	307 1.7×	167 1.2×	93	992
S. Albeverio Germany	13	486 1.0×	289 0.8×	261 0.8×	181 1.0×	123 0.9×	42	731
Vladimir Georgescu France	16	696 1.4×	192 0.5×	222 0.7×	211 1.1×	225 1.6×	34	847
D. R. Yafaev France	15	870 1.8×	283 0.8×	270 0.8×	313 1.7×	306 2.2×	89	1.1k
Mouez Dimassi France	7	428 0.9×	128 0.4×	213 0.6×	169 0.9×	98 0.7×	28	557
David R. Masson Canada	14	188 0.4×	229 0.6×	211 0.6×	151 0.8×	446 3.2×	40	834
Pierre Moussa France	15	385 0.8×	140 0.4×	310 0.9×	112 0.6×	113 0.8×	37	740

Countries citing papers authored by James S. Howland

Since Specialization

Citations

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

Fields of papers citing papers by James S. Howland

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James S. Howland. 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 James S. Howland. The network helps show where James S. Howland may publish in the future.

Co-authorship network of co-authors of James S. Howland

This figure shows the co-authorship network connecting the top 25 collaborators of James S. Howland. A scholar is included among the top collaborators of James S. Howland 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 James S. Howland. James S. Howland 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

Howland, James S.. (2010). Basic real analysis. 3 indexed citations

Howland, James S., et al.. (1997). Spectra of Quasienergies. Journal of Mathematical Analysis and Applications. 207(2). 397–408. 1 indexed citations

Howland, James S.. (1991). Random perturbations of singular spectra. Proceedings of the American Mathematical Society. 112(4). 1009–1011. 2 indexed citations

Howland, James S.. (1989). Floquet operators with singular spectrum. II. French digital mathematics library (Numdam). 50(3). 325–334. 17 indexed citations

Howland, James S.. (1987). Perturbation theory of dense point spectra. Journal of Functional Analysis. 74(1). 52–80. 27 indexed citations

Howland, James S.. (1986). Finite rank perturbations of singular spectra. Proceedings of the American Mathematical Society. 97(4). 634–636. 4 indexed citations

Howland, James S.. (1983). Complex scaling of ac Stark Hamiltonians. Journal of Mathematical Physics. 24(5). 1240–1244. 16 indexed citations

Howland, James S. & Tosio Kato. (1981). On a theorem of Ismagilov. Journal of Functional Analysis. 41(1). 37–39. 3 indexed citations

Howland, James S.. (1980). A decomposition of a measure space with respect to a multiplication operator. Proceedings of the American Mathematical Society. 78(2). 231–234. 1 indexed citations

10.

Howland, James S.. (1980). A Decomposition of a Measure Space with Respect to a Multiplication Operator. Proceedings of the American Mathematical Society. 78(2). 231–231. 1 indexed citations

11.

Howland, James S.. (1980). Born series and scattering by time-dependent potentials. Rocky Mountain Journal of Mathematics. 10(3). 2 indexed citations

12.

Howland, James S.. (1975). The Livsic matrix in perturbation theory. Journal of Mathematical Analysis and Applications. 50(2). 415–437. 47 indexed citations

13.

Howland, James S.. (1972). Perturbation of embedded eigenvalues. Bulletin of the American Mathematical Society. 78(2). 280–283. 23 indexed citations

14.

Howland, James S.. (1971). Simple poles of operator-valued functions. Journal of Mathematical Analysis and Applications. 36(1). 12–21. 14 indexed citations

15.

Howland, James S.. (1971). Analyticity of Determinants of Operators on a Banach Space. Proceedings of the American Mathematical Society. 28(1). 177–177. 2 indexed citations

16.

Howland, James S.. (1971). TRACE CLASS HANKEL OPERATORS. The Quarterly Journal of Mathematics. 22(1). 147–159. 14 indexed citations

17.

Howland, James S.. (1969). Analytic continuation of the 𝑆-matrix for potential scattering. Proceedings of the American Mathematical Society. 21(2). 381–385. 2 indexed citations

18.

Howland, James S.. (1968). A perturbation-theoretic approach to eigenfunction expansions. Journal of Functional Analysis. 2(1). 1–23. 10 indexed citations

19.

Howland, James S.. (1968). Perturbation of embedded eigenvalues by operators of finite rank. Journal of Mathematical Analysis and Applications. 23(3). 575–584. 13 indexed citations

20.

Howland, James S.. (1967). Banach space techniques in the perturbation theory of self-adjoint operators with continuous spectra. Journal of Mathematical Analysis and Applications. 20(1). 22–47. 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.

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