Segre may refer to:

People

* Segre (surname), people with the surname Segre or Segrè

Places

Segre (river) The Segre ( ; ) is a river tributary to the Ebro (''Ebre'' in Catalan) with a basin comprising territories across three states: France, Andorra, and Spain. The river Segre, known to Romans and Greeks as Sicoris, and to the Arabs of Al-Andalus ...

, a river in Catalonia, Spain **

Sègre (department) Sègre () was a department of the First French Empire in present-day Spain and Andorra. Named after the river Segre, it incorporated Andorra. Val d'Aran, which is in the north side of the Pyrenees, was instead incorporated to the department of H ...

, a former French department in Catalonia **

Sègre-Ter Sègre-Ter () was a department of France created in Spain on 7 March 1813 by merging the departments of Sègre and Ter. This merger was established by decree but never published in the ''Bulletin des lois The (''Bulletin of the Laws'') was a Fr ...

, a former French department in Catalonia **

Segre Olympic Park Parc Olímpic del Segre is a canoeing and kayaking facility in La Seu d'Urgell, Catalonia, Spain, built in 1990 for use during the 1992 Summer Olympics in Barcelona. The competition whitewater course is 300 m long, with a 6.5 m drop, making a ...

, a canoeing and kayaking facility in Catalonia, Spain ** Costers del Segre, a wine region in Catalonia, Spain **

Artesa de Segre Artesa de Segre () is a municipality in the ''comarca'' of the Noguera in Catalonia, Spain. It is situated in the valley of the Segre river, between Ponts and Balaguer. The municipal territory extends as far as the confluence of the Segre wit ...

, a municipality in Catalonia, Spain *** Tudela de Segre, a locality in Artesa de Segre, Catalonia, Spain **

Torres de Segre Torres de Segre () is a village in the province of Lleida and autonomous community of Catalonia Catalonia is an autonomous community of Spain, designated as a ''nationalities and regions of Spain, nationality'' by its Statute of Autonomy of ...

, a municipality in Catalonia, Spain ** Pic del Segre, a mountain between France and Spain ** Pic Petit de Segre, a mountain between France and Spain *

Segré-en-Anjou Bleu Segré-en-Anjou Bleu (, ) is a Communes of France, commune in the Maine-et-Loire Departments of France, department of western France. The municipality was established on 15 December 2016 and consists of the former communes of Aviré, Le Bourg-d'Ir ...

, a commune in Maine-et-Loire, France **

Segré Segré () is a former commune in the Maine-et-Loire department in western France. On 15 December 2016, it was merged into the new commune Segré-en-Anjou Bleu.Arrondissement of Segré The arrondissement of Segré is an arrondissement of France in the Maine-et-Loire department in the Pays de la Loire region. It has 26 communes. Its population is 70,921 (2021), and its area is . Composition The communes of the arrondissement o ...

, in Maine-et-Loire, France ** Canton of Segré-en-Anjou Bleu, in Maine-et-Loire, France *

Segré, Burkina Faso Segré is a village in the Diébougou Department of Bougouriba Province in south-western Burkina Faso Burkina Faso is a landlocked country in West Africa, bordered by Mali to the northwest, Niger to the northeast, Benin to the southeast, Togo ...

Historical events

* Battle of the Segre, a series of battles fought during the Spanish Civil War * Battle of Segré, a battle fought during the Breton–Norman War

Science and mathematics

* Segrè chart *

Segre class In mathematics, the Segre class is a characteristic class used in the study of cones, a generalization of vector bundles. For vector bundles the total Segre class is inverse to the total Chern class, and thus provides equivalent information; the ad ...

* Segre classification *

Segre cubic In algebraic geometry, the Segre cubic is a cubic threefold embedded in 4 (or sometimes 5) dimensional projective space, studied by . Definition The Segre cubic is the set of points (''x''0:''x''1:''x''2:''x''3:''x''4:''x''5) of ''P''5 satisfying ...

Segre embedding In mathematics, the Segre embedding is used in projective geometry to consider the cartesian product (of sets) of two projective spaces as a projective variety. It is named after Corrado Segre. Definition The Segre map may be defined as the map : ...

* Segre surface *

Segre's theorem In projective geometry, Segre's theorem, named after the Italian mathematician Beniamino Segre, is the statement: *Any Oval (projective plane), oval in a ''finite Pappus's hexagon theorem, pappian'' projective plane of ''odd'' order is a nondegene ...

* Segrè–Silberberg effect *

Zeuthen–Segre invariant In algebraic geometry, the Zeuthen–Segre invariant ''I'' is an invariant of a projective surface found in a complex projective space which was introduced by and rediscovered by . The invariant ''I'' is defined to be ''d'' – 4''g''& ...

Other uses

* '' Diari Segre'' or ''Segre'', a Spanish- and Catalan-language daily newspaper * 29910 Segre, a minor planet {{disambiguation, geo, math, science