|
Francesco Gerbaldi
250px Francesco Gerbaldi (29 July 1858, La Spezia, Italy – 29 June 1934, Pavia, Italy) was an Italian geometer, who proved Gerbaldi's theorem. Gerbaldi studied at the University of Turin with ''laurea'' in 1879 and then became there an assistant to Enrico D'Ovidio. After further study in Germany, he was in Pavia and Rome before being appointed a professor at the University of Palermo. He was a colleague of Giovanni Guccia, the founder of the Circolo Matematico di Palermo. Guccia and Gerbaldi enhanced the reputation of the Faculty of Mathematics of the University of Palermo by recruiting Giuseppe Bagnera, Michele De Franchis, Pasquale Calapso and Michele Cipolla. In 1908 Gerbaldi moved to the University of Pavia, where he remained until his retirement in 1931 due to ill health. He is known for what is now called Gerbaldi's theorem, the construction of six pairwise apolar linearly independent nondegenerate ternary quadratic forms (the lowest dimensional quadrics). Later he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francesco Gerbaldi - Superficie Di Steiner
Francesco, the Italian (and original) version of the personal name "Francis", is the most common given name among males in Italy. Notable persons with that name include: People with the given name Francesco * Francesco I (other), several people * Francesco Barbaro (other), several people * Francesco Bernardi (other), several people *Francesco di Giorgio Martini (1439-1501), Italian architect, engineer and painter * Francesco Berni (1497–1536), Italian writer * Francesco Canova da Milano (1497–1543), Italian lutenist and composer * Francesco Primaticcio (1504–1570), Italian painter, architect, and sculptor * Francesco Albani (1578–1660), Italian painter * Francesco Borromini (1599–1667), Swiss sculptor and architect * Francesco Cavalli (1602–1676), Italian composer * Francesco Maria Grimaldi (1618–1663), Italian mathematician and physicist * Francesco Bianchini (1662–1729), Italian philosopher and scientist * Francesco Galli Bibiena (165 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michele Cipolla
Michele Cipolla (28 October 1880, Palermo – 7 September 1947, Palermo) was an Italian mathematician, mainly specializing in number theory. He was a professor of Algebraic Analysis at the University of Catania The University of Catania ( it, Università degli Studi di Catania) is a university located in Catania, Sicily. Founded in 1434, it is the oldest university in Sicily, the 13th oldest in Italy, and the 29th oldest university in the world. With a ... and, later, the University of Palermo. He developed (among other things) a theory for sequences of sets and Cipolla's algorithm for finding square roots modulo a prime number. He also solved the problem of binomial congruence. Publications *''Opere'' (Hrsg.: Guido Zappa) Sede della Soc., Palermo 1997. XXXII, 547 S. : Ill. (Supplemento ai Rendiconti del Circolo Matematico di Palermo ; Ser. 2, No. 47) *''Storia della matematica dai primordi a Leibniz''. Soc. Ed. Siciliana, Mazara 1949. 174 S. Literature *Michele Cipo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century Italian Mathematicians
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Congress Of Mathematicians
The International Congress of Mathematicians (ICM) is the largest conference for the topic of mathematics. It meets once every four years, hosted by the International Mathematical Union (IMU). The Fields Medals, the Nevanlinna Prize (to be renamed as the IMU Abacus Medal), the Carl Friedrich Gauss Prize, Gauss Prize, and the Chern Medal are awarded during the congress's opening ceremony. Each congress is memorialized by a printed set of Proceedings recording academic papers based on invited talks intended to be relevant to current topics of general interest. Being List of International Congresses of Mathematicians Plenary and Invited Speakers, invited to talk at the ICM has been called "the equivalent ... of an induction to a hall of fame". History Felix Klein and Georg Cantor are credited with putting forward the idea of an international congress of mathematicians in the 1890s.A. John Coleman"Mathematics without borders": a book review ''CMS Notes'', vol 31, no. 3, April 1999 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valentiner Group
In mathematics, the Valentiner group is the perfect triple cover of the alternating group on 6 points, and is a group of order 1080. It was found by in the form of an action of ''A''6 on the complex projective plane, and was studied further by . All perfect alternating groups have perfect double covers. In most cases this is the universal central extension. The two exceptions are ''A''6 (whose perfect triple cover is the Valentiner group) and ''A''7, whose universal central extensions have centers of order 6. Representations *The alternating group ''A''6 acts on the complex projective plane, and showed that the group acts on the 6 conics of Gerbaldi's theorem. This gives a homomorphism to PGL3(C), and the lift of this to the triple cover GL3(C) is the Valentiner group. This embedding can be defined over the field generated by the 15th roots of unity. *The product of the Valentiner group with a group of order 2 is a 3-dimensional complex reflection group of order 2160 generate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadric
In mathematics, a quadric or quadric surface (quadric hypersurface in higher dimensions), is a generalization of conic sections (ellipses, parabolas, and hyperbolas). It is a hypersurface (of dimension ''D'') in a -dimensional space, and it is defined as the zero set of an irreducible polynomial of degree two in ''D'' + 1 variables; for example, in the case of conic sections. When the defining polynomial is not absolutely irreducible, the zero set is generally not considered a quadric, although it is often called a ''degenerate quadric'' or a ''reducible quadric''. In coordinates , the general quadric is thus defined by the algebraic equationSilvio LevQuadricsin "Geometry Formulas and Facts", excerpted from 30th Edition of ''CRC Standard Mathematical Tables and Formulas'', CRC Press, from The Geometry Center at University of Minnesota : \sum_^ x_i Q_ x_j + \sum_^ P_i x_i + R = 0 which may be compactly written in vector and matrix notation as: : x Q x^\mathrm + P x^\mathrm + ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Pavia
The University of Pavia ( it, Università degli Studi di Pavia, UNIPV or ''Università di Pavia''; la, Alma Ticinensis Universitas) is a university located in Pavia, Lombardy, Italy. There was evidence of teaching as early as 1361, making it one of the oldest universities in the world. It was the sole university in Milan and the greater Lombardy region until the end of the 19th century. In 2022 the University was recognized by the Times Higher Education among the top 10 in Italy and among the 300 best in the world. Currently, it has 18 departments and 9 faculties. It does not have a main campus; its buildings and facilities are scattered around the city, which is in turn called "a city campus." The university caters to more than 20,000 students who come from Italy and all over the world. The university offers more than 80 undergraduate programs; over 40 master programs, and roughly 20 doctoral programs (including 8 in English). About 1,500 students who enter the university every ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pasquale Calapso
Pasquale is a masculine Italian given name and a surname mainly found in southern Italy. It is a cognate of the French name Pascal, the Spanish Pascual, the Portuguese Pascoal and the Catalan Pasqual. Pasquale derives from the Latin ''paschalis'' or ''pashalis'', which means "relating to Easter", from Latin ''pascha'' ("Easter"), Greek ''Πάσχα'', Aramaic ''pasḥā'', in turn from the Hebrew '' פֶּסַח'', which means "to be born on, or to be associated with, Passover day". Since the Hebrew holiday Passover coincides closely with the later Christian holiday of Easter, the Latin word came to be used for both occasions. The names Paschal, Pasqual, Pascal, Pascale, Pascha, Paschalis, Pascual, Pascoe and Pasco are all variations of ''Pasquale''. The feminine form, rather rare, is ''Pasquala'', ''Pasqualina'', ''Pascale'', ''Pascalle'' or ''Pascalina''. As a surname in Italy, Pasquale has many variations found all over the country: Pasquali, Pascale, Pascal, P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geometer
A geometer is a mathematician whose area of study is geometry. Some notable geometers and their main fields of work, chronologically listed, are: 1000 BCE to 1 BCE * Baudhayana (fl. c. 800 BC) – Euclidean geometry, geometric algebra * Manava (c. 750 BC–690 BC) – Euclidean geometry * Thales of Miletus (c. 624 BC – c. 546 BC) – Euclidean geometry * Pythagoras (c. 570 BC – c. 495 BC) – Euclidean geometry, Pythagorean theorem * Zeno of Elea (c. 490 BC – c. 430 BC) – Euclidean geometry * Hippocrates of Chios (born c. 470 – 410 BC) – first systematically organized '' Stoicheia – Elements'' (geometry textbook) * Mozi (c. 468 BC – c. 391 BC) * Plato (427–347 BC) * Theaetetus (c. 417 BC – 369 BC) * Autolycus of Pitane (360–c. 290 BC) – astronomy, spherical geometry * Euclid (fl. 300 BC) – '' Elements'', Euclidean geometry (sometimes called the "father of geometry") * Apollonius of Perga (c. 262 BC – c. 190 BC) – Euclidean geometry, conic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giuseppe Bagnera (mathematician)
Giuseppe Bagnera (14 November 1865 – 12 May 1927) was an Italian mathematician. Biography At the University of Palermo, Bagnera received his ''laurea'' in civil engineering in 1890 and then his ''laurea'' in mathematics in 1895. His teachers included Giovanni Battista Guccia, Francesco Gerbaldi ed Ernesto Cesàro. In 1899 he was appointed ''libero docente'' (lecturer) in algebraic analysis at the University of Palermo. He was appointed professor extraordinarius of infinitesimal calculus in 1901, then professor ordinarius in 1905, at the University of Messina, where he remained until the 1908 earthquake. He then taught at the University of Palermo until 1922 when he moved to the Sapienza University of Rome, where he taught until his death.Bagnera, Giuseppi — Treccani, Dizi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
