Horaçio Porta

1.3k total citations
64 papers, 819 citations indexed

About

Horaçio Porta is a scholar working on Mathematical Physics, Algebra and Number Theory and Applied Mathematics. According to data from OpenAlex, Horaçio Porta has authored 64 papers receiving a total of 819 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Mathematical Physics, 26 papers in Algebra and Number Theory and 19 papers in Applied Mathematics. Recurrent topics in Horaçio Porta's work include Advanced Topics in Algebra (24 papers), Holomorphic and Operator Theory (16 papers) and Advanced Operator Algebra Research (13 papers). Horaçio Porta is often cited by papers focused on Advanced Topics in Algebra (24 papers), Holomorphic and Operator Theory (16 papers) and Advanced Operator Algebra Research (13 papers). Horaçio Porta collaborates with scholars based in United States, Venezuela and Argentina. Horaçio Porta's co-authors include Earl Berkson, Lázaro Recht, Gustavo Corach, Kenneth B. Stolarsky, Eduardo J. Dubuc, N. T. Peck, Heinrich P. Lotz, Jeffrey C. Lagarias, Robert Kaufman and I. Borosh and has published in prestigious journals such as Mathematics of Computation, Communications on Pure and Applied Mathematics and Journal of Mathematical Analysis and Applications.

In The Last Decade

Horaçio Porta

54 papers receiving 672 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Horaçio Porta United States	15	534	438	253	227	179	64	819
Bernard Russo United States	17	425 0.8×	742 1.7×	552 2.2×	200 0.9×	129 0.7×	56	956
Lázaro Recht Venezuela	14	391 0.7×	343 0.8×	221 0.9×	111 0.5×	155 0.9×	44	577
Harald Upmeier Germany	14	479 0.9×	537 1.2×	355 1.4×	304 1.3×	181 1.0×	46	938
Ronald G. Douglas United States	18	1.0k 1.9×	787 1.8×	542 2.1×	289 1.3×	169 0.9×	58	1.5k
Roger Godement France	11	209 0.4×	748 1.7×	413 1.6×	583 2.6×	144 0.8×	28	1.1k
Nik Weaver United States	14	243 0.5×	352 0.8×	166 0.7×	165 0.7×	99 0.6×	40	567
Earl Berkson United States	17	776 1.5×	630 1.4×	224 0.9×	184 0.8×	151 0.8×	85	1.1k
Patrick Ahern United States	22	918 1.7×	343 0.8×	193 0.8×	367 1.6×	117 0.7×	69	1.1k
Andrzej Hulanicki Poland	15	416 0.8×	527 1.2×	121 0.5×	207 0.9×	108 0.6×	63	732
Allen Shields United States	19	679 1.3×	366 0.8×	186 0.7×	300 1.3×	315 1.8×	48	1.1k

Countries citing papers authored by Horaçio Porta

Since Specialization

Citations

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

Fields of papers citing papers by Horaçio Porta

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Horaçio Porta

This figure shows the co-authorship network connecting the top 25 collaborators of Horaçio Porta. A scholar is included among the top collaborators of Horaçio Porta 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 Horaçio Porta. Horaçio Porta 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

Porta, Horaçio, et al.. (1994). Calculus & Mathematica : derivatives : measuring growth. Addison-Wesley eBooks. 2 indexed citations

Corach, Gustavo, Horaçio Porta, & Lázaro Recht. (1994). Convexity of the geodesic distance on spaces of positive operators. Illinois Journal of Mathematics. 38(1). 62 indexed citations

Lagarias, Jeffrey C., Horaçio Porta, & Kenneth B. Stolarsky. (1994). Asymmetric tent map expansions II. Purely periodic points. Illinois Journal of Mathematics. 38(4). 8 indexed citations

Uhl, J. J., et al.. (1993). Calculus and Mathematica: Approximations : Measuring Nearness. Addison-Wesley Longman Publishing Co., Inc. eBooks. 1 indexed citations

Corach, Gustavo, Horaçio Porta, & Lázaro Recht. (1993). The Geometry of Spaces of Projections in C*-Algebras. Advances in Mathematics. 101(1). 59–77. 61 indexed citations

Brown, D. P., Horaçio Porta, & J. J. Uhl. (1991). Calculus & Mathematica. Part 2: Give it a try. Addison-Wesley Longman Publishing Co., Inc. eBooks. 1 indexed citations

Corach, Gustavo, Horaçio Porta, & Lázaro Recht. (1991). Splitting of the positive set of a C*-algebra. Indagationes Mathematicae. 2(4). 461–468. 6 indexed citations

Corach, Gustavo, Horaçio Porta, & Lázaro Recht. (1990). An operator inequality. Linear Algebra and its Applications. 142. 153–158. 37 indexed citations

Corach, Gustavo, Horaçio Porta, & Lázaro Recht. (1988). Multiplicative integrals and geometry of spaces of projections. Revista de la Unión Matemática Argentina. 34. 132–149. 4 indexed citations

10.

Porta, Horaçio & Lázaro Recht. (1987). Minimality of geodesics in Grassmann manifolds. Proceedings of the American Mathematical Society. 100(3). 464–466. 42 indexed citations

11.

Porta, Horaçio & Kenneth B. Stolarsky. (1987). Means that minimize relative error, and an associated integral equation. Journal of Mathematical Analysis and Applications. 122(1). 95–113. 2 indexed citations

12.

Porta, Horaçio. (1981). Sur quelques algèbres de la Logique. Portugaliae Mathematica. 40(1). 41–77. 11 indexed citations

13.

Berkson, Earl & Horaçio Porta. (1977). One-parameter groups of isometries on Hardy spaces of the torus: spectral theory. Transactions of the American Mathematical Society. 227(0). 357–370. 1 indexed citations

14.

Berkson, Earl & Horaçio Porta. (1976). One-Parameter Groups of Isometries on Hardy Spaces of the Torus. Transactions of the American Mathematical Society. 220. 373–373. 3 indexed citations

15.

Berkson, Earl & Horaçio Porta. (1976). One-parameter groups of isometries on Hardy spaces of the torus. Transactions of the American Mathematical Society. 220. 373–373. 5 indexed citations

16.

Dubuc, Eduardo J. & Horaçio Porta. (1974). La comonade de la kelleyfication convexe. French digital mathematics library (Numdam). 15(4). 343–352. 1 indexed citations

17.

Berkson, Earl & Horaçio Porta. (1973). Hermitian operators and one-parameter groups of isometries in Hardy spaces. Transactions of the American Mathematical Society. 185. 331–331. 21 indexed citations

18.

Dubuc, Eduardo J. & Horaçio Porta. (1971). Convenient categories of topological algebras, and their duality theory. Journal of Pure and Applied Algebra. 1(3). 281–316. 18 indexed citations

19.

Porta, Horaçio. (1969). Two sided ideals of operators. Bulletin of the American Mathematical Society. 75(3). 599–602.

20.

Berkson, Earl & Horaçio Porta. (1969). Representations of B(X). Journal of Functional Analysis. 3(1). 1–34. 60 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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