Sergio Spagnolo

1.4k total citations
37 papers, 835 citations indexed

About

Sergio Spagnolo is a scholar working on Mathematical Physics, Applied Mathematics and Control and Systems Engineering. According to data from OpenAlex, Sergio Spagnolo has authored 37 papers receiving a total of 835 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Mathematical Physics, 20 papers in Applied Mathematics and 13 papers in Control and Systems Engineering. Recurrent topics in Sergio Spagnolo's work include advanced mathematical theories (13 papers), Stability and Controllability of Differential Equations (13 papers) and Differential Equations and Boundary Problems (12 papers). Sergio Spagnolo is often cited by papers focused on advanced mathematical theories (13 papers), Stability and Controllability of Differential Equations (13 papers) and Differential Equations and Boundary Problems (12 papers). Sergio Spagnolo collaborates with scholars based in Italy and Japan. Sergio Spagnolo's co-authors include Ferruccio Colombini, Piero DʼAncona, Ennio De Giorgi, Enrico Jannelli, Antonio Marino, Luciano Modica, Tatsuo Nishitani, Maurizio Parton and Paolo Piccinni and has published in prestigious journals such as Annals of Mathematics, Communications on Pure and Applied Mathematics and Archive for Rational Mechanics and Analysis.

In The Last Decade

Sergio Spagnolo

34 papers receiving 653 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sergio Spagnolo Italy 14 500 465 360 292 128 37 835
Massimo Gobbino Italy 14 282 0.6× 260 0.6× 294 0.8× 271 0.9× 42 0.3× 65 580
G. Perla Menzala Brazil 17 638 1.3× 244 0.5× 369 1.0× 587 2.0× 85 0.7× 74 923
Ferruccio Colombini Italy 18 816 1.6× 718 1.5× 278 0.8× 397 1.4× 40 0.3× 90 1.1k
Alexander Borichev France 11 412 0.8× 389 0.8× 392 1.1× 401 1.4× 84 0.7× 59 837
Varga Κ. Kalantarov Türkiye 17 616 1.2× 422 0.9× 523 1.5× 726 2.5× 74 0.6× 52 1.1k
Thomas Runst Germany 8 504 1.0× 685 1.5× 234 0.7× 127 0.4× 23 0.2× 22 855
Evgeniy Pustylnik Israel 11 488 1.0× 743 1.6× 302 0.8× 166 0.6× 58 0.5× 36 1.1k
Ralph Chill Germany 18 315 0.6× 487 1.0× 540 1.5× 392 1.3× 26 0.2× 52 879
Albert Milani United States 13 289 0.6× 293 0.6× 195 0.5× 294 1.0× 20 0.2× 44 590
Yuri Tomilov Poland 11 497 1.0× 294 0.6× 509 1.4× 528 1.8× 90 0.7× 51 858

Countries citing papers authored by Sergio Spagnolo

Since Specialization
Citations

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

Fields of papers citing papers by Sergio Spagnolo

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sergio Spagnolo

This figure shows the co-authorship network connecting the top 25 collaborators of Sergio Spagnolo. A scholar is included among the top collaborators of Sergio Spagnolo 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 Sergio Spagnolo. Sergio Spagnolo 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.
DʼAncona, Piero, et al.. (2008). On the 2 by 2 weakly hyperbolic systems. Osaka Journal of Mathematics. 45(4). 921–939. 5 indexed citations
2.
Spagnolo, Sergio, et al.. (2006). Some inequalities of Glaeser-Bronšteĭn type. Rendiconti Lincei Matematica e Applicazioni. 17(4). 367–375. 2 indexed citations
3.
Spagnolo, Sergio, et al.. (2006). Hyperbolic Equations with Non-analytic Coefficients. Mathematische Annalen. 336(3). 551–569. 20 indexed citations
4.
Spagnolo, Sergio, et al.. (2005). Hyperbolic equations with non analytic coefficients well posed in all Gevrey classes (Microlocal Analysis and Related Topics). Kyoto University Research Information Repository (Kyoto University). 1431(1431). 30–36. 1 indexed citations
5.
Spagnolo, Sergio, et al.. (2004). An extension of Glaeser inequality and its applications. Osaka Journal of Mathematics. 41(1). 145–157. 3 indexed citations
6.
DʼAncona, Piero, et al.. (2004). Weakly hyperbolic systems with Hölder continuous coefficients. Journal of Differential Equations. 203(1). 64–81. 8 indexed citations
7.
Nishitani, Tatsuo & Sergio Spagnolo. (2002). Errata to : “On pseudosymmetric systems with one space variable”. French digital mathematics library (Numdam). 1(1). 245–246. 1 indexed citations
8.
Nishitani, Tatsuo & Sergio Spagnolo. (2001). On pseudosymmetric systems with one space variable. French digital mathematics library (Numdam). 30(3). 661–679. 1 indexed citations
9.
DʼAncona, Piero & Sergio Spagnolo. (2001). A Remark on Uniformly Symmetrizable Systems. Advances in Mathematics. 158(1). 18–25. 4 indexed citations
10.
Parton, Maurizio, Paolo Piccinni, & Sergio Spagnolo. (2001). Hermitian and special structures on products of spheres. 1 indexed citations
11.
DʼAncona, Piero & Sergio Spagnolo. (1995). Small analytic solutions to nonlinear weakly hyperbolic systems. French digital mathematics library (Numdam). 22(3). 469–491. 9 indexed citations
12.
DʼAncona, Piero & Sergio Spagnolo. (1995). KIRCHHOFF TYPE EQUATIONS DEPENDING ON A SMALL PARAMETER. Chinese Annals of Mathematics Series B. 16(4). 413–430. 16 indexed citations
13.
Colombini, Ferruccio, Antonio Marino, Luciano Modica, & Sergio Spagnolo. (1989). Partial differential equations and the calculus of variations : essays in honor of Ennio De Giorgi. CINECA IRIS Institutial research information system (University of Pisa). 1–1018. 23 indexed citations
14.
Colombini, Ferruccio & Sergio Spagnolo. (1984). Hyperbolic equations with coefficients rapidly oscillating in time: A result of nonstability. Journal of Differential Equations. 52(1). 24–38. 15 indexed citations
15.
Colombini, Ferruccio, Enrico Jannelli, & Sergio Spagnolo. (1983). Well-posedness in the Gevrey classes of the Cauchy problem for a non-strictly hyperbolic equation with coefficients depending on time. CINECA IRIS Institutial research information system (University of Pisa). 10(2). 291–312. 81 indexed citations
16.
Colombini, Ferruccio, Ennio De Giorgi, & Sergio Spagnolo. (1979). Sur les équations hyperboliques avec des coefficients qui ne dépendent que du temps. CINECA IRIS Institutial research information system (University of Pisa). 6(3). 511–559. 105 indexed citations
17.
Spagnolo, Sergio, et al.. (1973). Una valutazione della regolarità delle soluzioni di sistemi ellittici variazionali in due variabili. French digital mathematics library (Numdam). 27(3). 417–429. 2 indexed citations
18.
Spagnolo, Sergio, et al.. (1973). Sulla convergenza degli integrali dell'energia per operatori ellittici del secondo ordine. 8. 391–411. 146 indexed citations
19.
Spagnolo, Sergio. (1967). Una caratterizzazione degli operatori differenziali autoaggiunti del 2° ordine a coefficienti misurabili e limitati. Rendiconti del Seminario Matematico della Università di Padova. 39. 56–64. 4 indexed citations
20.
Spagnolo, Sergio. (1967). Sul limite delle soluzioni di problemi di Cauchy relativi all'equazione del calore. French digital mathematics library (Numdam). 21(4). 657–699. 74 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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