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Algebraic classification of rank two symmetric tensors
The Segre classification is an algebraic classification of rank two symmetric tensors. It was proposed by the Italian mathematician Corrado Segre in 1884
Segre_classification
Topics referred to by the same term
War Segrè chart Segre class Segre classification Segre cubic Segre embedding Segre surface Segre's theorem Segrè–Silberberg effect Zeuthen–Segre invariant
Segre
Describes the objects of a given type, up to some equivalence
general relativity Segre classification – Algebraic classification of rank two symmetric tensors Wigner's classification – Classification of irreducible representations
Classification_theorem
Italian mathematician (1863–1924)
Corrado Segre (20 August 1863 – 18 May 1924) was an Italian mathematician who is remembered today as a major contributor to the early development of algebraic
Corrado_Segre
Map in projective geometry
In mathematics, the Segre embedding is a map used in projective geometry to consider the cartesian product of two projective spaces as a projective variety
Segre_embedding
Classification used in differential geometry and general relativity
Mathematics portal Physics portal Classification of electromagnetic fields Exact solutions in general relativity Segre classification Peeling theorem Plebanski
Petrov_classification
Below we have sketched a classification by physical interpretation. Solutions can also be organized using the Segre classification of the possible algebraic
Exact solutions in general relativity
Exact_solutions_in_general_relativity
Tensor describing energy momentum density in spacetime
magnetic fields Maxwell stress tensor Poynting vector Ricci calculus Segre classification "All the stress–energy tensors explored above were symmetric. That
Stress–energy_tensor
Type of symmetry in physics
classifying spacetimes, including using the Segre classification of the energy–momentum tensor or the Petrov classification of the Weyl tensor have been studied
Spacetime_symmetries
tensor classifications useful in general relativity include the Segre classification of the energy–momentum tensor and the Petrov classification of the
Mathematics of general relativity
Mathematics_of_general_relativity
Richard Schoen (Yamabe problem; see also parent list) Corrado Segre (Segre classification) Hugo D. Wahlquist (Wahlquist-Estabrook algorithm; see also parent
Contributors to the mathematical background for general relativity
Contributors_to_the_mathematical_background_for_general_relativity
Group of Italian mathematicians who studied birational geometry (c. 1885–1935)
Segre "would bring, either by their own efforts or those of their students, Italian algebraic geometry to full maturity". A one-time student of Segre
Italian school of algebraic geometry
Italian_school_of_algebraic_geometry
crystal Seed nucleus Seeding (fluid dynamics) Seesaw mechanism Segre classification Segré–Silberberg effect Seiberg duality Seiberg–Witten gauge theory
Index_of_physics_articles_(S)
Prehistoric human skull cap from Italy
Manzi et al. (2010) agree with this, citing an age of 430 and 385 ka. Segre and Mallegni (2012) strongly retain their beliefs that the skull is 900-800
Ceprano_Man
Circle-like pointset in a geometric plane
(pappian) projective plane of odd order, PG(2, q), then Ω is a conic by Segre's theorem.). This implies that, after a possible change of coordinates, every
Oval_(projective_plane)
Chemical element with atomic number 85 (At)
astatine was in 1940 by Dale R. Corson, Kenneth Ross MacKenzie, and Emilio G. Segrè at the University of California, Berkeley. They named it from the Ancient
Astatine
Concept in algebraic geometry
surface. They form a 4-dimensional family. Degree 4: these are essentially Segre surfaces in P4, given by the intersection of two quadrics. They have 16
Del_Pezzo_surface
Homogeneous polynomial of degree 3
curve Fermat cubic Klein cubic threefold Koras–Russell cubic threefold Segre cubic In fact, Pierre Deligne pointed out that the correspondence works
Cubic_form
Psychosis beginning suddenly in the first two weeks after childbirth
(1985-2015). 19 (1): 247–278. ISSN 0882-1046. PMID 12733228. Rhodes AM, Segre LS (August 2013). "Perinatal depression: a review of US legislation and
Postpartum_psychosis
Tabular arrangement of the chemical elements
discovered in nature. It was discovered in 1937 by Italian chemists Emilio Segrè and Carlo Perrier, who named their discovery technetium, after the Greek
Periodic_table
Subatomic particle
particle accelerator by University of California, Berkeley physicists Emilio Segrè and Owen Chamberlain, for which they were awarded the 1959 Nobel Prize in
Antiproton
on the initial linear portion of the table of nuclides (also called the Segrè plot), a plot of the proton versus neutron numbers of all matter both ordinary
Abundance of the chemical elements
Abundance_of_the_chemical_elements
Field of algebraic geometry
fails to be defined at those lines through p which are contained in X). The Segre embedding gives an embedding P 1 × P 1 → P 3 {\displaystyle \mathbb {P}
Birational_geometry
French cyclist
Dérame (born 25 July 1970) is a former French cyclist. 1990 3rd Nantes-Segré 1991 2nd Circuit de Lorraine 1993 1st Bordeaux-Saintes 1994 1st Tour du
Pascal_Deramé
Marseille 1999–2000 football season
Bakayoko 8 Fabrizio Ravanelli 6 Cyrille Pouget 5 Christophe Dugarry 3 ES Segré v Marseille Marseille v Gueugnon Bastia v Marseille Source: UEFA Marseille
1999–2000 Olympique de Marseille season
1999–2000_Olympique_de_Marseille_season
Species of whale; largest animal known
Marshall Cavendish Corporation. pp. 1631–1632. ISBN 978-0-7614-7206-3. Segre, P. S.; Potvin, J; Cade, D. E.; Calambokidis, J; Di Clemente, J; Fish, F
Blue_whale
Surface in algebraic geometry
It is the only surface with two different rulings. The projective plane Segre surface An intersection of two quadrics, isomorphic to the projective plane
Rational_surface
French cyclist
Stage 4 Tour des Deux-Sèvres [fr] 2023 1st Nantes-Segré [fr] Tour de Guadeloupe 1st Points classification 1st Stages 4 & 5 9th Overall Tour du Loir-et-Cher
Lucas_Boniface
Family of birds
from the original on 8 March 2023. Retrieved 8 March 2023. Pournazeri S, Segre PS, Princevac M, et al. (25 December 2012). "Hummingbirds generate bilateral
Hummingbird
Algebraic surface defined by a cubic polynomial
If X(k) is nonempty, then X is at least unirational over k, by Beniamino Segre and János Kollár. For k infinite, unirationality implies that the set of
Cubic_surface
Mood disorder experienced after childbirth
153–166. doi:10.1016/j.yhbeh.2015.08.008. PMID 26319224. S2CID 15205497. Segre LS, O'Hara MW, Losch ME (2006). "Race/ethnicity and perinatal depressed
Postpartum_depression
Large animals
0.CO;2. ISSN 0006-3568. Goldbogen JA, Cade DE, Wisniewska DM, Potvin J, Segre PS, Savoca MS, Hazen EL, Czapanskiy MF, Kahane-Rapport SR, DeRuiter SL,
Megafauna
Extinct species of archaic human
Michelangelo; Tartarelli, Giandonato; Ricci, Stefano; Biddittu, Italo; Segre, Aldo (2003). "Homo cepranensis sp. nov. and the evolution of African-European
Homo_heidelbergensis
Species of gastropod
Murex lassaignei Deshayes, 1835 Murex pumilus Kuster, 1869 Murex scopulorum Segre, 1954 Murex semiclausus Kuster, 1869 Muricopsis affinis Settepassi, 1977
Ocenebra_edwardsii
Growth disorder
PMC 1187088. PMID 11577173. Lupu, Floria; Terwilliger, Joseph D.; Lee, Kaechoong; Segre, Gino V.; Efstratiadis, Argiris (2001). "Roles of growth hormone and insulin-like
Gigantism
Evolutionary process
Michelangelo; Tartarelli, Giandonato; Ricci, Stefano; Biddittu, Italo; Segre, Aldo (March 2003). "Homo cepranensis sp. nov. and the evolution of African-European
Human_evolution
Reaction that splits an atomic nucleus
the best method for uranium isotope separation. On 28 March 1941, Emilio Segré and Glen Seaborg reported on the "strong indications that 239Pu undergoes
Nuclear_fission
American citizens of Italian descent
Giacconi, Salvatore Luria, Franco Modigliani, Rita Levi Montalcini, Emilio G. Segrè, and Carolyn Bertozzi. Italian Americans continued to serve with distinction
Italian_Americans
Characterization of nuclide stability
The chart of those nuclides is also known as a Segrè chart, after the physicist Emilio Segrè. The Segrè chart may be considered a map of the nuclear valley
Valley_of_stability
American mathematician (1876–1931)
geometry at the University of Göttingen, the University of Turin with Corrado Segre, and the University of Bonn with Eduard Study. In 1904, Moore joined the
Clarence_Lemuel_Elisha_Moore
Informal group of fungi
536-553.1988. PMC 373162. PMID 3070323. Katz Ezov T, Chang SL, Frenkel Z, Segrè AV, Bahalul M, Murray AW, Leu JY, Korol A, Kashi Y (2010). "Heterothallism
Yeast
Italian mathematician (1871–1946)
worked on differential geometry. He collaborated with Castelnuovo, Corrado Segre and Francesco Severi. He had positions at the University of Bologna, and
Federigo_Enriques
ample anticanonical divisor Hirzebruch surfaces, rational ruled surfaces Segre surfaces, intersections of two quadrics in projective 4-space Unirational
List of complex and algebraic surfaces
List_of_complex_and_algebraic_surfaces
Italian football league season
MVP di dicembre". legab.it. 18 January 2024. Retrieved 14 March 2026. "Segre è l'MVP di gennaio". legab.it. 15 February 2024. Retrieved 14 March 2026
2023–24_Serie_B
Italian automobile designer (1913–1983)
coachbuilding company to Carrozzeria Ghia in Turin, and Ghia director Luigi Segre appointed him head of Ghia Design. In this short period, Frua was responsible
Pietro_Frua
Abstract ring with finite number of elements
S2CID 8973277 Scorza, Gaetano (1935). "Le algebre regolari e le varietà di Segre che con esse si riconnettono". In Rossetti, Pavia (ed.). Scritti matematici
Finite_ring
Records of Earth's development
25 (5): 573–82. doi:10.1111/j.1574-6976.2001.tb00592.x. PMID 11742692. Segré, Daniel; Ben-Eli, Dafna; Deamer, David W.; Lancet, Doron (2001). "The lipid
History_of_Earth
years there were several published incomplete proofs, including 3 by B. Segre, but Vitushkin found gaps in many of them. More incomplete proofs were later
List_of_incomplete_proofs
Danish physicist (1885–1962)
as Seen by His Friends and Colleagues. New York: Wiley. OCLC 644043790. Segrè, Gino (2007). Faust in Copenhagen: A Struggle for the Soul of Physics. New
Niels_Bohr
City and municipality in Catalonia, Spain
an eminence, on the right (west) bank of the river Sicoris (the modern Segre), the principal tributary of the Ebro, and some distance above its confluence
Lleida
Type of radioactive decay
nobelprize.org. Archived from the original on 2018-04-25. Retrieved 2018-04-25. Segré, E. (1987). "K-Electron Capture by Nuclei". In Trower, P. W. (ed.). Discovering
Beta_decay
is the Veronese surface in P5. The only Severi variety with n=4 is the Segre embedding of P2×P2 into P8, found by Scorza in 1908. The only Severi variety
Scorza_variety
Spanish wine geographic indication
the other DOP's in Catalonia: Alella Cava Conca de Barberà Costers del Segre Empordà Montsant Penedès Pla de Bages Priorat Tarragona Terra Alta The authorised
Catalunya_DOP
every page in this series, and a statistical break-up on the dynamical classification of minor planets. Also see the summary list of all named bodies in numerical
List of minor planets: 29001–30000
List_of_minor_planets:_29001–30000
Species of fish
other parts of the Ebro basin, including its tributaries, especially the Segre River. Some endemic species of Iberian barbels, genus Barbus in the Cyprinidae
Wels_catfish
European racing season
Endurance-Info (in French). 31 March 2026. Retrieved 9 April 2026. "05 - Classification By Category - Morning Session" (PDF). Al Kamel Systems. 8 April 2026
2026_Le_Mans_Cup
Chamberlain United States "For their discovery of the antiproton." Emilio Segrè 1960 Donald Glaser United States "For the invention of the bubble chamber
List of Nobel laureates in Physics
List_of_Nobel_laureates_in_Physics
Jewish diaspora of Spain and Portugal
Ktav Publishing House Inc. (1971) Segrè, Emilio (1993). A Mind Always in Motion: the Autobiography of Emilio Segrè. Berkeley, California: University of
Sephardic_Jews
Belgian quantum physicist (born 1972)
the classification of 2×2×2×2 tensors, is a classic problem in algebraic geometry: posed by Constantin Le Paige in 1881 and advanced by Corrado Segre in
Frank_Verstraete
doi:10.1111/j.1574-6976.2001.tb00592.x. ISSN 0168-6445. PMID 11742692. Segré, Daniel; Ben-Eli, Dafna; Deamer, David W.; et al. (February 2001). "The
History_of_life
algebraic geometry, being known for Segre classification, Segre cubic, Segre embedding, Segre surface, Zeuthen–Segre invariant (first discovered by Zeuthen)
List of Italian inventions and discoveries
List_of_Italian_inventions_and_discoveries
Elements predicted but not found in 1869
Lecoq de Boisbaudran. Technetium was isolated by Carlo Perrier and Emilio Segrè in 1937, well after Mendeleev's lifetime, from samples of molybdenum that
Mendeleev's predicted elements
Mendeleev's_predicted_elements
Species of scorpion
Retrieved 2020-10-05. de Roodt, Adolfo R; Garcı́a, Susana I; Salomón, Oscar D; Segre, Liliana; Dolab, Jorge A; Funes, Raúl F; de Titto, Ernesto H (2003). "Epidemiological
Tityus_trivittatus
Projective plane not satisfying Desargues' theorem
points, no three collinear in PG(2, q) is called an oval. If q is odd, by Segre's theorem, an oval in PG(2, q) is a conic, in sense 3 above. An Ostrom conic
Non-Desarguesian_plane
Species of whale
Bibcode:2008MamRv..38...50F. doi:10.1111/j.1365-2907.2008.00118.x. Gough, William T.; Segre, Paolo S.; Bierlich, K. C.; Cade, David E.; Potvin, Jean; Fish, Frank E
Minke_whale
Legal geographical indication systems for wines from Spain
labels, but it will eventually be replaced by DOP. The wine region classification in Spain takes a quite complex hierarchical form in which the denominación
Spanish_wine_regions
Empoli FC Football team season
updated: 5 October 2025 Source: Competitions Source: Serie BKT Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference;
2025–26_Empoli_FC_season
Peierls, Otto Frisch, Klaus Fuchs and Ernest Titterton. 1944 – April – Emilio Segrè discovers that the spontaneous fission rate of plutonium is too high to
Timeline of nuclear weapons development
Timeline_of_nuclear_weapons_development
Academic and research institution
(1800–1945). Cambridge: Cambridge University Press. ISBN 978-0-521-36107-1. Segre, Michael (2015). Higher Education and the Growth of Knowledge: A Historical
University
Political party in Italy
from the original on 30 September 2019. Retrieved 15 August 2022. "Liliana Segre e Pd chiedono a Meloni di togliere la fiamma tricolore dal simbolo di Fdi:
Brothers_of_Italy
American physicist (1907–1991)
would have similar chemistry to rhenium, so he began working with Emilio Segrè, an expert on that element from his discovery of its homolog technetium
Edwin_McMillan
Ludwig Schlesinger Arthur Moritz Schoenflies Heinrich Schotten Corrado Segre Maximilian Simon Arnold Sommerfeld Antonín Václav Šourek Paul Stäckel Cyparissos
List of International Congresses of Mathematicians Plenary and Invited Speakers
List_of_International_Congresses_of_Mathematicians_Plenary_and_Invited_Speakers
the interpretation of the Cherenkov effect" Igor Tamm 1959 Emilio Gino Segrè Italy / United States "for their discovery of the antiproton" 1960 Donald
List of Jewish Nobel laureates
List_of_Jewish_Nobel_laureates
of indifference, and he remained an agnostic all his adult life." Emilio Segre, Enrico Fermi: Physicist (1995), page 5. Trevor Illtyd Williams (1984).
List_of_agnostics
spectroscopy and was a pioneer in classifying stars by their spectra Emilio Segrè (1905–1989), physicist, known for his discovery of the antiproton Francesco
List_of_people_from_Italy
List of history of chemical elements
regarding the discovery of rhenium). 43 Technetium 1937 C. Perrier and E. Segrè 1947 S. Fried The two discovered a new element in a molybdenum sample that
Timeline of chemical element discoveries
Timeline_of_chemical_element_discoveries
Subatomic particle with no charge
Administration, U.S. Government Printing Office, ISBN 978-1-60322-016-3 Emilio Segrè (1970). Enrico Fermi: Physicist. University of Chicago. ISBN 0-226-74472-8
Neutron
Medical condition
names: authors list (link) Cholst, IN; Steinberg, SF; Tropper, PJ; Fox, HE; Segre, GV; Bilezikian, JP (10 May 1984). "The influence of hypermagnesemia on
Hypermagnesemia
Combination of genetic material between compatible mating types
1038/ng1859. PMID 16892060. S2CID 783720. Katz Ezov T, Chang SL, Frenkel Z, Segrè AV, Bahalul M, Murray AW, Leu JY, Korol A, Kashi Y (January 2010). "Heterothallism
Mating_in_fungi
Genus of bacteria
Alice; Bouffard, Gerard; Blakesly, Robert; Wolfsberg, Tyra; Turner, Maria; Segre, Julia (July 2018). "A diversity profile of the human skin microbiota".
Kocuria
Duality (projective geometry) Real projective plane Real projective space Segre embedding of a product of projective spaces Rational normal curve Conics
List of algebraic geometry topics
List_of_algebraic_geometry_topics
Organic compound that is soluble in nonpolar solvents
(19): 6777–6782. doi:10.1073/pnas.0500225102. PMC 1100774. PMID 15867152. Segré D, Ben-Eli D, Deamer DW, Lancet D (2001). "The lipid world" (PDF). Origins
Lipid
US Sassuolo Calcio 2024–25 football season
Padova Monza v Sassuolo Source: Soccerway Source: Serie BKT Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference;
2024–25 US Sassuolo Calcio season
2024–25_US_Sassuolo_Calcio_season
Historical development of physics
Physics, 1800–1940. New York: Twayne. ISBN 0-8057-9512-X. OCLC 185866968. Segrè, Emilio (1984). From Falling Bodies to Radio Waves: Classical Physicists
History_of_physics
Spezia Calcio FC season
20 September 2025 Source: Competitions Source: Serie BKT Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference;
2025–26_Spezia_Calcio_season
City in California, United States
on Manhattan Project developing first atomic bombs. Died in 1999. Emilio Segrè, an Italian physicist and Nobel laureate who discovered the elements technetium
Lafayette,_California
Mediaeval treatise on medicinal plants
Bruxellensis. Anvers, De Schutter. Collins (2000, pp. 239–298) Segre Rutz (2003) Segre Rutz (2006, p. 344) Givens (2006, pp. 179–205) Ventura (2009, pp
Tractatus_de_Herbis
1736–1936 . London: Oxford University Press H.F. Baker (1926), "Corrado Segre", Journal of the London Mathematical Society 1:269 Ne'eman, Yuval (1999)
List of people considered father or mother of a scientific field
List_of_people_considered_father_or_mother_of_a_scientific_field
Puente de Piedra (Zaragoza) Ebro Zaragoza In town Spain ? ? Pont de Pedra Segre Lleida In town Spain ? ? Ponte da Pobra de Trives Xares A Pobra de Trives
List_of_Roman_bridges
Population of the brown bear
critically endangered Marsican Brown Bear in Central Apennines". Fondation Segré. Squires, Nick (15 February 2011). "Marsican bear vanishing with Italian
Marsican_brown_bear
Type of particle accelerator
sent to Berkeley Radiation Laboratory and worked most closely with Emilio Segrè and Donald Cooksey, returning before the start of the war. Construction
Cyclotron
Chemical element with atomic number 93 (Np)
results of his experiment to chemist and fellow Berkeley professor Emilio Segrè to attempt to isolate the source of the radioactivity. Both scientists began
Neptunium
110. Bibcode:1996AmJPh..64..110V. doi:10.1119/1.18125. ISSN 0002-9505. Segre, Eduardo (1994). "Religion versus science?". American Journal of Physics
Relationship between science and religion
Relationship_between_science_and_religion
One-make motor racing series in Italy
and Rookies' classifications. The points table for Overall classification is as follows: The points table for Michelin Cup classification is as follows:
2024 Porsche Carrera Cup Italia
2024_Porsche_Carrera_Cup_Italia
Geometric concept of a 2D space with "points at infinity" adjoined
1007/s10623-019-00623-y, MR 4001798 Bamberg, John; Penttila, Tim (2015), "Completing Segre's proof of Wedderburn's little theorem" (PDF), Bulletin of the London Mathematical
Projective_plane
Como 1907 2023–24 football season
Como Source: Competitions Source: Soccerway (in English) Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference;
2023–24_Como_1907_season
nuclides in print. It is a two-dimensional graphical representation in the Segrè-arrangement with the neutron number N on the abscissa and the proton number
Karlsruhe_Nuclide_Chart
French cyclist
the 1996 Paris–Roubaix. 1987 1st Stage 1, Circuit de la Sarthe 1988 2nd Segré 3rd Amiens - Beaurains, Amateurs, Beaurains 2nd Prix Frequence Nord, Amateurs
Francis_Moreau
synthesized by Glenn T. Seaborg, Arthur C. Wahl, Joseph W. Kennedy and Emilio Segrè. It is kept secret until after the atomic bombings of Hiroshima and Nagasaki
1941_in_science
Parvorder of mammal
Goldbogen, J.a.; Cade, D.e.; Calambokidis, J.; Friedlaender, A.s.; Potvin, J.; Segre, P.s.; Werth, A.j. (2017-01-03). "How Baleen Whales Feed: The Biomechanics
Baleen_whale
travel, tourism, insurance
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
SEGRE CLASSIFICATION
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travel, tourism, insurance