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Bollettino Unione Matematica Italiana
BOLLETTINO UNIONE MATEMATICA ITALIANA UMI Notizie. Bollettino dell’Unione Matematica Italiana, serie 3, volume 10 (1955), n. 2, p. 286-312. <http://www.bdim.eu/item?id=BUMI_1955_3_10_2_286_0> c Unione Matematica Italiana, 1955, diritti riservati. Articolo digitalizzato nel quadro del programma bdim (Biblioteca Digitale Italiana di Matematica) SIMAI & UMI http://www.bdim.eu/ c Unione Matematica Italiana, 1955, diritti riservati. N O T I Z I E Verbale dell Assemblea crdinaria dei Soci delll'U.M.I. döl 17 a pril e 1955 —• II 17 aprile 1955, nei locali delllstituto Matematico dell'Università di Bologna, ebbe luogo l'assemblea ordinaria dei Soci dell'U.M.I. L'oxdine ded giorno era il seguente: 1. Relazione süITattivita della Presidenza. 2. Approvazione del rendicoano finanziario deH'eseroizio 1 gennaio - 31 dicembre 1954. 3. Bilancio preventivo. 4. Scrutini délie votazioni per l'elezione dei membri deU'Uffieio di Pxe- sddenza e della Comnaissione Scientifica e proclamazione degli eletti, 5. Varie ed eventuali. La seduta ha inizio aUe are 10,30. Sono presenti i Soci: Arnerio, Angeli, AscoJi, Bononcini, Barusotti, Campedelli, Caprioli, Cassina, Catbabriga, Chisini» Conti, Dalla Valle, De Socio, Galafassi, Gherardelli, Graffi, Magenes, Mam- briani, Manaxa, Marani/Marchionna, Maroni, Matteuzzi, Muracchini, Pignedoli» Pompilj, Pratelli, Procissi, Ricci, Samsone, Tanzi, Terracini, Vaona, Varoli^ o, Villa e Villari. AU'un-ainimità il prof. Brusotti viene eletto Presidente dell'assemblea; Segxe- tario il prof. Magenes. Il Presidente propone e l'Assemblea approva cbe, nelJa discussione dell*o,d.g«, venga data la precedenza al coacnma 4. Il prof. Villa consegna al prof. Brusotti n. 279 schede di votazione per- venute alla Segreteria. -
BJ Fourier –
essays Notes of a protein crystallographer: the legacy of J.-B. J. Fourier – crystallography, time and beyond ISSN 2059-7983 Celerino Abad-Zapatero* Institute of Tuberculosis Research, Center for Biomolecular Sciences, Department of Pharmacological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA. *Correspondence e-mail: [email protected] Received 14 January 2021 Accepted 18 March 2021 The importance of the Fourier transform as a fundamental tool for crystallo- graphy is well known in the field. However, the complete legacy of Jean-Baptiste Joseph Fourier (1768–1830) as a pioneer Egyptologist and premier mathema- Edited by Z. S. Derewenda, University of tician and physicist of his time, and the implications of his work in other scientific Virginia, USA fields, is less well known. Significantly, his theoretical and experimental work on phenomena related to the transmission of heat founded the mathematical study This article is dedicated to my dear friend from our college days at the University of Valladolid of irreversible phenomena and introduced the flow of time in physico-chemical (Spain), Professor Antonio Castellanos Mata processes and geology, with its implications for biological evolution. Fourier’s (1947–2016). insights are discussed in contrast to the prevalent notion of reversible dynamic time in the early 20th century, which was dominated by Albert Einstein’s (1875– Keywords: J.-B. J. Fourier; heat transmission; 1953) theory of general relativity versus the philosophical notion of dure´e concept of time; Bergson–Einstein debate; proposed by the French philosopher Henri-Louis Bergson (1859–1941). The nonequilibrium thermodynamics. current status of the mathematical description of irreversible processes by Ilya Romanovich Prigogine (1917–2003) is briefly discussed as part of the enduring legacy of the pioneering work of J.-B. -
Signorini Conditions for Inviscid Fluids
Signorini conditions for inviscid fluids by Yu Gu A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Master of Science in Computer Science Waterloo, Ontario, Canada, 2021 c Yu Gu 2021 Author's Declaration I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. ii Abstract In this thesis, we present a new type of boundary condition for the simulation of invis- cid fluids { the Signorini boundary condition. The new condition models the non-sticky contact of a fluid with other fluids or solids. Euler equations with Signorini boundary conditions are analyzed using variational inequalities. We derived the weak form of the PDEs, as well as an equivalent optimization based formulation. We proposed a finite el- ement method to numerically solve the Signorini problems. Our method is based on a staggered grid and a level set representation of the fluid surfaces, which may be plugged into an existing fluid solver. We implemented our algorithm and tested it with some 2D fluid simulations. Our results show that the Signorini boundary condition successfully models some interesting contact behavior of fluids, such as the hydrophobic contact and the non-coalescence phenomenon. iii Acknowledgements I would like to thank my supervisor professor Christopher Batty. During my study at University of Waterloo, I was able to freely explore any idea that interests me and always get his support and helpful guidance. -
Giuseppe Tallini (1930-1995)
Bollettino U. M. I. (8)1-B (1998), 451-474 — GIUSEPPE TALLINI (1930-1995) La vita. Personalità scientifica dinamica e prorompente, "iuseppe Tallini verrà certamente ricordato nella storia della matematica di questo secolo per aver dato un impulso decisi- vo allo sviluppo della combinatoria in Italia, continuando insieme ad Adriano Barlotti a promuovere quella scuola di geometria combinatoria, fondata da Beniamino Segre, che , oggi una delle più affermate in campo internazionale. Fondamentali sono i suoi risultati riguardanti gli archi e le calotte in spazi di Galois, la caratterizzazione grafica di varietà algebriche notevoli, le strutture combinatorie d’in- cidenza (matroidi, spazi lineari e semilineari, spazi polari), la teoria dei disegni combina- tori e dei sistemi di *teiner e quella dei codici correttori. Grande ammiratore della cultura classica greco-romana, della cui visione della vita si sentiva profondamente partecipe, ha saputo coniugare una intensissima attività scienti- fica, che lo assorbiva &#asi freneticamente, a omenti di sapiente otium, nei quali si de- dicava preferibilmente a quelle letture di storia antica che egli prediligeva sopra ogni al- tre. Di temperamento naturalmente cordiale ed aperto, era dotato di )randissimo calore umano ed amava la vita in tutte le sue manifestazioni. Nel 1993 era stato colpito da una sclerosi laterale amiotrofica, che lo aveva paralizza- to e poi, negli ultimi mesi del 1994, reso afono. La malattia, che lo condurrà alla morte il 4 aprile 1995 e della cui gravità era consapevole, non ne ha mai fiaccato lo spirito, la luci- dità della mente, la capacità di comunicare idee matematiche. Con grande serenità aveva accettato la crescente enomazione fisica, continuando il lavoro di sempre, in ciò anche sostenuto dal premuroso affetto dei figli e della moglie, che gli è stata amorevolmente %i- cina con dedizione grandissima. -
1 Santo Spirito in Florence: Brunelleschi, the Opera, the Quartiere and the Cantiere Submitted by Rocky Ruggiero to the Universi
Santo Spirito in Florence: Brunelleschi, the Opera, the Quartiere and the Cantiere Submitted by Rocky Ruggiero to the University of Exeter as a thesis for the degree of Doctor of Philosophy in Art History and Visual Culture In March 2017. This thesis is available for Library use on the understanding that it is copyright material and that no quotation from the thesis may be published without proper acknowledgement. I certify that all material in this thesis which is not my own work has been identified and that no material has previously been submitted and approved for the award of a degree by this or any other University. (Signature)…………………………………………………………………………….. 1 Abstract The church of Santo Spirito in Florence is universally accepted as one of the architectural works of Filippo Brunelleschi (1377-1446). It is nevertheless surprising that contrary to such buildings as San Lorenzo or the Old Sacristy, the church has received relatively little scholarly attention. Most scholarship continues to rely upon the testimony of Brunelleschi’s earliest biographer, Antonio di Tuccio Manetti, to establish an administrative and artistic initiation date for the project in the middle of Brunelleschi’s career, around 1428. Through an exhaustive analysis of the biographer’s account, and subsequent comparison to the extant documentary evidence from the period, I have been able to establish that construction actually began at a considerably later date, around 1440. It is specifically during the two and half decades after Brunelleschi’s death in 1446 that very little is known about the proceedings of the project. A largely unpublished archival source which records the machinations of the Opera (works committee) of Santo Spirito from 1446-1461, sheds considerable light on the progress of construction during this period, as well as on the role of the Opera in the realization of the church. -
Fundamental Theorems in Mathematics
SOME FUNDAMENTAL THEOREMS IN MATHEMATICS OLIVER KNILL Abstract. An expository hitchhikers guide to some theorems in mathematics. Criteria for the current list of 243 theorems are whether the result can be formulated elegantly, whether it is beautiful or useful and whether it could serve as a guide [6] without leading to panic. The order is not a ranking but ordered along a time-line when things were writ- ten down. Since [556] stated “a mathematical theorem only becomes beautiful if presented as a crown jewel within a context" we try sometimes to give some context. Of course, any such list of theorems is a matter of personal preferences, taste and limitations. The num- ber of theorems is arbitrary, the initial obvious goal was 42 but that number got eventually surpassed as it is hard to stop, once started. As a compensation, there are 42 “tweetable" theorems with included proofs. More comments on the choice of the theorems is included in an epilogue. For literature on general mathematics, see [193, 189, 29, 235, 254, 619, 412, 138], for history [217, 625, 376, 73, 46, 208, 379, 365, 690, 113, 618, 79, 259, 341], for popular, beautiful or elegant things [12, 529, 201, 182, 17, 672, 673, 44, 204, 190, 245, 446, 616, 303, 201, 2, 127, 146, 128, 502, 261, 172]. For comprehensive overviews in large parts of math- ematics, [74, 165, 166, 51, 593] or predictions on developments [47]. For reflections about mathematics in general [145, 455, 45, 306, 439, 99, 561]. Encyclopedic source examples are [188, 705, 670, 102, 192, 152, 221, 191, 111, 635]. -
Simeon Denis Poisson English Version
SIMÉON DENIS POISSON (June 21, 1781 – April 25, 1840) by HEINZ KLAUS STRICK, Germany In the period before the French Revolution, those in France who did not belong to the nobility had a difficult time in establishing themselves in a professional career. Such a situation was experienced by SIMÉON DENIS POISSON’s father, who, following his service as a soldier in the army, had to be satisfied with a minor administrative position in the provinces. When the Revolution altered the existing power structures, he seized his chance and took over an administrative office in the regional government. (drawings © Andreas Strick) He then set out to take advantage of his new and influential position to secure the professional future of his son. He determined that a suitable career would be that of a surgeon, and so the fifteen-year-old SIMÉON was sent as an apprentice to a relative in Fontainebleau. But it was not long before it became clear that his son possessed neither an interest in medicine nor sufficient manual dexterity. Indeed, SIMÉON had considerable difficulty in physical coordination and could not possibly have been a suitable candidate for the career of a surgeon. As an interim solution, it was decided to send the boy to school. There, SIMÉON impressed his teachers with his eagerness to learn and his rapid progress, particularly in mathematics, so that they advised him to register for the admissions examination at the École Polytechnique, in Paris. And although he had had no systematic education, he passed the examination in 1798 with the year’s top score. -
Bianchi, Luigi.Pdf 141KB
Centro Archivistico BIANCHI, LUIGI Elenco sommario del fondo 1 Indice generale Introduzione.....................................................................................................................................................2 Carteggio (1880-1923)......................................................................................................................................2 Carteggio Saverio Bianchi (1936 – 1954; 1975)................................................................................................4 Manoscritti didattico scientifici........................................................................................................................5 Fascicoli............................................................................................................................................................6 Introduzione Il fondo è pervenuto alla Biblioteca della Scuola Normale Superiore di Pisa per donazione degli eredi nel 1994-1995; si tratta probabilmente solo di una parte della documentazione raccolta da Bianchi negli anni di ricerca e insegnamento. Il fondo era corredato di un elenco dattiloscritto a cura di Paola Piazza, in cui venivano indicati sommariamente i contenuti delle cartelle. Il materiale è stato ordinato e descritto da Sara Moscardini e Manuel Rossi nel giugno 2014. Carteggio (1880-1923) La corrispondenza presenta oltre 100 lettere indirizzate a L. B. dal 1880 al 1923, da illustri studiosi del XIX-XX secolo come Eugenio Beltrami, Enrico Betti, A. von Brill, Francesco Brioschi, -
Levi-Civita,Tullio Francesco Dell’Isola, Emilio Barchiesi, Luca Placidi
Levi-Civita,Tullio Francesco Dell’Isola, Emilio Barchiesi, Luca Placidi To cite this version: Francesco Dell’Isola, Emilio Barchiesi, Luca Placidi. Levi-Civita,Tullio. Encyclopedia of Continuum Mechanics, 2019, 11 p. hal-02099661 HAL Id: hal-02099661 https://hal.archives-ouvertes.fr/hal-02099661 Submitted on 15 Apr 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. 2 Levi-Civita, Tullio dating back to the fourteenth century. Giacomo the publication of one of his best known results Levi-Civita had also been a counselor of the in the field of analytical mechanics. We refer to municipality of Padua from 1877, the mayor of the Memoir “On the transformations of dynamic Padua between 1904 and 1910, and a senator equations” which, due to the importance of the of the Kingdom of Italy since 1908. A bust of results and the originality of the proceedings, as him by the Paduan sculptor Augusto Sanavio well as to its possible further developments, has has been placed in the council chamber of the remained a classical paper. In 1897, being only municipality of Padua after his death. According 24, Levi-Civita became in Padua full professor to Ugo Amaldi, Tullio Levi-Civita drew from in rational mechanics, a discipline to which he his father firmness of character, tenacity, and his made important scientific original contributions. -
Science and Fascism
Science and Fascism Scientific Research Under a Totalitarian Regime Michele Benzi Department of Mathematics and Computer Science Emory University Outline 1. Timeline 2. The ascent of Italian mathematics (1860-1920) 3. The Italian Jewish community 4. The other sciences (mostly Physics) 5. Enter Mussolini 6. The Oath 7. The Godfathers of Italian science in the Thirties 8. Day of infamy 9. Fascist rethoric in science: some samples 10. The effect of Nazism on German science 11. The aftermath: amnesty or amnesia? 12. Concluding remarks Timeline • 1861 Italy achieves independence and is unified under the Savoy monarchy. Venice joins the new Kingdom in 1866, Rome in 1870. • 1863 The Politecnico di Milano is founded by a mathe- matician, Francesco Brioschi. • 1871 The capital is moved from Florence to Rome. • 1880s Colonial period begins (Somalia, Eritrea, Lybia and Dodecanese). • 1908 IV International Congress of Mathematicians held in Rome, presided by Vito Volterra. Timeline (cont.) • 1913 Emigration reaches highest point (more than 872,000 leave Italy). About 75% of the Italian popu- lation is illiterate and employed in agriculture. • 1914 Benito Mussolini is expelled from Socialist Party. • 1915 May: Italy enters WWI on the side of the Entente against the Central Powers. More than 650,000 Italian soldiers are killed (1915-1918). Economy is devastated, peace treaty disappointing. • 1921 January: Italian Communist Party founded in Livorno by Antonio Gramsci and other former Socialists. November: National Fascist Party founded in Rome by Mussolini. Strikes and social unrest lead to political in- stability. Timeline (cont.) • 1922 October: March on Rome. Mussolini named Prime Minister by the King. -
Autobiografia Di Alessandro Ghigi
Alessandro Ghigi Autobiografia a cura di Mario Spagnesi L’Istituto Nazionale per la Fauna Selvatica ha promosso la pubblicazione di questo volume per onorare la memoria del Prof. Alessandro Ghigi, che ne fu fondatore e primo direttore. La realizzazione dell’opera è stata resa possibile grazie al consenso degli eredi del Prof. Ghigi, i nipoti Chiara, Vittoria e Alessandro, i quali hanno contribuito anche con la concessione di alcune fotografie di famiglia. Si ringrazia il Magnifico Rettore Prof. Fabio Roversi Monaco per aver sostenuto e accolto con entusiasmo l’iniziativa e per avere messo a disposizione il materiale dell’Archivio e Servizio fotografico dell’Università di Bologna. Citazione suggerita per questo volume: Spagnesi Mario (a cura di) 1995 – Alessandro Ghigi: autobiografia. Ist. Naz. Fauna Selvatica, Bologna. Indice Premessa Pag. 5 Alessandro Ghigi: profilo biografico “ 9 Elenco delle pubblicazioni di Alessandro Ghigi ordinate per materia “ 13 Fanciullezza “ 38 Vita di collegio “ 47 I quattro anni di università “ 61 Dopo la laurea “ 73 Fondazione e primi anni di attività dell’Unione Zoologica Italiana “ 81 La faticosa carriera universitaria “ 90 La Società emiliana Pro Montibus et Silvis “ 105 Primo viaggio in America “ 110 Vita balneare e amministrativa a Rimini “ 121 La mia candidatura al secondo collegio di Bologna “ 129 L’amministrazione Zanardi durante la guerra italo-austriaca “ 136 Incontri con Monsignor Giacomo Della Chiesa, prima Arcivescovo di Bologna e poi Papa Benedetto XV “ 152 Assistenza civile durante la guerra -
An Interview with Martin Davis
Notices of the American Mathematical Society ISSN 0002-9920 ABCD springer.com New and Noteworthy from Springer Geometry Ramanujan‘s Lost Notebook An Introduction to Mathematical of the American Mathematical Society Selected Topics in Plane and Solid Part II Cryptography May 2008 Volume 55, Number 5 Geometry G. E. Andrews, Penn State University, University J. Hoffstein, J. Pipher, J. Silverman, Brown J. Aarts, Delft University of Technology, Park, PA, USA; B. C. Berndt, University of Illinois University, Providence, RI, USA Mediamatics, The Netherlands at Urbana, IL, USA This self-contained introduction to modern This is a book on Euclidean geometry that covers The “lost notebook” contains considerable cryptography emphasizes the mathematics the standard material in a completely new way, material on mock theta functions—undoubtedly behind the theory of public key cryptosystems while also introducing a number of new topics emanating from the last year of Ramanujan’s life. and digital signature schemes. The book focuses Interview with Martin Davis that would be suitable as a junior-senior level It should be emphasized that the material on on these key topics while developing the undergraduate textbook. The author does not mock theta functions is perhaps Ramanujan’s mathematical tools needed for the construction page 560 begin in the traditional manner with abstract deepest work more than half of the material in and security analysis of diverse cryptosystems. geometric axioms. Instead, he assumes the real the book is on q- series, including mock theta Only basic linear algebra is required of the numbers, and begins his treatment by functions; the remaining part deals with theta reader; techniques from algebra, number theory, introducing such modern concepts as a metric function identities, modular equations, and probability are introduced and developed as space, vector space notation, and groups, and incomplete elliptic integrals of the first kind and required.