Patrick Fitzpatrick

2.0k total citations
95 papers, 1.2k citations indexed

About

Patrick Fitzpatrick is a scholar working on Computational Theory and Mathematics, Artificial Intelligence and Electrical and Electronic Engineering. According to data from OpenAlex, Patrick Fitzpatrick has authored 95 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Computational Theory and Mathematics, 33 papers in Artificial Intelligence and 27 papers in Electrical and Electronic Engineering. Recurrent topics in Patrick Fitzpatrick's work include Coding theory and cryptography (33 papers), graph theory and CDMA systems (16 papers) and Nonlinear Differential Equations Analysis (13 papers). Patrick Fitzpatrick is often cited by papers focused on Coding theory and cryptography (33 papers), graph theory and CDMA systems (16 papers) and Nonlinear Differential Equations Analysis (13 papers). Patrick Fitzpatrick collaborates with scholars based in Ireland, United States and Italy. Patrick Fitzpatrick's co-authors include W. V. Petryshyn, Jacobo Pejsachowicz, Eimear Byrne, Roger D. Nussbaum, Mario Martelli, Jean Mawhin, Lázaro Recht, Patrick J. Rabier, J. C. Alexander and Emanuel Popovici and has published in prestigious journals such as IEEE Transactions on Information Theory, IEEE Transactions on Computers and Lecture notes in mathematics.

In The Last Decade

Patrick Fitzpatrick

90 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Patrick Fitzpatrick Ireland 19 601 489 336 324 204 95 1.2k
T. Andô Japan 21 974 1.6× 1.0k 2.1× 309 0.9× 129 0.4× 349 1.7× 44 1.8k
Aris Daniilidis France 18 972 1.6× 271 0.6× 201 0.6× 158 0.5× 267 1.3× 51 1.6k
Tamás Erdélyi United States 17 313 0.5× 1.1k 2.2× 453 1.3× 105 0.3× 286 1.4× 116 1.6k
Nikhil Srivastava United States 13 415 0.7× 148 0.3× 169 0.5× 355 1.1× 94 0.5× 34 1.1k
A. Meir Canada 18 539 0.9× 238 0.5× 768 2.3× 157 0.5× 347 1.7× 75 1.7k
Marek Kuczma Poland 14 350 0.6× 1.3k 2.6× 504 1.5× 132 0.4× 624 3.1× 100 2.1k
L. Elsner Germany 22 1.1k 1.8× 264 0.5× 176 0.5× 95 0.3× 188 0.9× 94 1.5k
T. S. Motzkin United States 19 810 1.3× 257 0.5× 343 1.0× 171 0.5× 141 0.7× 57 1.6k
Morris Newman United States 22 541 0.9× 262 0.5× 568 1.7× 150 0.5× 361 1.8× 169 1.9k
Olav Njåstad Norway 21 982 1.6× 1.3k 2.6× 361 1.1× 81 0.3× 301 1.5× 110 2.3k

Countries citing papers authored by Patrick Fitzpatrick

Since Specialization
Citations

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

Fields of papers citing papers by Patrick Fitzpatrick

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Patrick Fitzpatrick

This figure shows the co-authorship network connecting the top 25 collaborators of Patrick Fitzpatrick. A scholar is included among the top collaborators of Patrick Fitzpatrick 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 Patrick Fitzpatrick. Patrick Fitzpatrick 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.
Alexander, J. Jeffrey & Patrick Fitzpatrick. (2016). Spectral flow is a complete invariant for detecting bifurcation of critical points. Transactions of the American Mathematical Society. 368(6). 4439–4459. 2 indexed citations
2.
Campillo, Antonio, Patrick Fitzpatrick, Edgar Martı́nez-Moro, & Ruud Pellikaan. (2010). Special issue algebraic coding theory and applications. Journal of Symbolic Computation. 45(7). 721–722.
3.
Fitzpatrick, Patrick, et al.. (2003). Fault tolerant matrix triangularization and solution of linear systems of equations. 469–480. 10 indexed citations
4.
Fitzpatrick, Patrick, et al.. (2002). Gröbner basis solutions of constrained interpolation problems. Linear Algebra and its Applications. 351-352. 533–551. 29 indexed citations
5.
Fitzpatrick, Patrick, et al.. (2001). Algebraic structure of quasicyclic codes. Discrete Applied Mathematics. 111(1-2). 157–175. 94 indexed citations
6.
Byrne, Eimear & Patrick Fitzpatrick. (2001). Gröbner Bases over Galois Rings with an Application to Decoding Alternant Codes. Journal of Symbolic Computation. 31(5). 565–584. 24 indexed citations
7.
Fitzpatrick, Patrick, Jacobo Pejsachowicz, & Lázaro Recht. (2000). Spectral Flow and Bifurcation of Critical Points of Strongly Indefinite Functionals. Journal of Differential Equations. 163(1). 18–40. 18 indexed citations
8.
Fitzpatrick, Patrick, Jacobo Pejsachowicz, & Lázaro Recht. (1999). Spectral Flow and Bifurcation of Critical Points of Strongly-Indefinite Functionals Part I. General Theory. Journal of Functional Analysis. 162(1). 52–95. 33 indexed citations
9.
Fitzpatrick, Patrick, et al.. (1993). Topological methods for ordinary differential equations : lectures given at the 1st session of the Centro Internazionale Matematico Estivo (C.I.M.E.), held in Montecatini Terme, Italy, June 24-July 2, 1991. Springer eBooks.
10.
Fitzpatrick, Patrick, et al.. (1992). A Gröbner basis technique for Padé approximation. Journal of Symbolic Computation. 13(2). 133–138. 10 indexed citations
11.
Fitzpatrick, Patrick & Jacobo Pejsachowicz. (1991). Parity and generalized multiplicity. Transactions of the American Mathematical Society. 326(1). 281–305. 38 indexed citations
12.
Fitzpatrick, Patrick, Jacobo Pejsachowicz, & Patrick J. Rabier. (1990). Topological degree for nonlinear Fredholm operators. PORTO Publications Open Repository TOrino (Politecnico di Torino). 1 indexed citations
13.
Nelson, J. Stuart, G.H. Norton, & Patrick Fitzpatrick. (1990). A systolic version of the extended euclidean algorithm. Prentice-Hall, Inc eBooks. 477–486. 2 indexed citations
14.
Fitzpatrick, Patrick, Ivar Massabó, & Jacobo Pejsachowicz. (1986). On the covering dimension of the set of solutions of some nonlinear equations. Transactions of the American Mathematical Society. 296(2). 777–798. 12 indexed citations
15.
Alexander, J. C. & Patrick Fitzpatrick. (1979). The homotopy of certain spaces of nonlinear operators, and its relation to global bifurcation of the fixed points of parametrized condensing operators. Journal of Functional Analysis. 34(1). 87–106. 17 indexed citations
16.
Fitzpatrick, Patrick & W. V. Petryshyn. (1978). Galerkin methods in the constructive solvability of nonlinear Hammerstein equations with applications to differential equations. Transactions of the American Mathematical Society. 238(0). 321–340. 11 indexed citations
17.
Fitzpatrick, Patrick. (1976). 60.29 The impossible scores problem by modular arithmetic. The Mathematical Gazette. 60(413). 219–220. 1 indexed citations
18.
Petryshyn, W. V. & Patrick Fitzpatrick. (1974). A degree theory, fixed point theorems, and mapping theorems for multivalued noncompact mappings. Transactions of the American Mathematical Society. 194(0). 1–25. 78 indexed citations
19.
Petryshyn, W. V. & Patrick Fitzpatrick. (1974). Fixed-point theorems for multivalued noncompact inward maps. Journal of Mathematical Analysis and Applications. 46(3). 756–767. 34 indexed citations
20.
Fitzpatrick, Patrick. (1971). A generalized degree for uniform limits of A-proper mappings. Journal of Mathematical Analysis and Applications. 35(3). 536–552. 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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