sheaf of groups
71Homological algebra — is the branch of mathematics which studies homology in a general algebraic setting. It is a relatively young discipline, whose origins can be traced to investigations in combinatorial topology (a precursor to algebraic topology) and abstract… …
72Algebraic topology — is a branch of mathematics which uses tools from abstract algebra to study topological spaces. The basic goal is to find algebraic invariants that classify topological spaces up to homeomorphism. In many situations this is too much to hope for… …
73Projective space — In mathematics a projective space is a set of elements constructed from a vector space such that a distinct element of the projective space consists of all non zero vectors which are equal up to a multiplication by a non zero scalar. A formal… …
74Connection form — In mathematics, and specifically differential geometry, a connection form is a manner of organizing the data of a connection using the language of moving frames and differential forms. Historically, connection forms were introduced by Élie Cartan …
75Clifford Hugh Dowker — (1912–1982) was a topologist known for his work in point set topology and also for his contributions in category theory, sheaf theory and knot theory. Contents 1 Biography 2 Work 3 References 4 …
76Armand Borel — (* 21. Mai 1923 in La Chaux de Fonds, Schweiz; † 11. August 2003 in Princeton, USA) war ein Schweizer Mathematiker. Armand Borel im Jahr 1967 Inhaltsverzeichnis …
77University of Saskatchewan — ] In many fields Biologist Walter P. Thompson leadership brought innovation, insight and research to new areas beginning with rust resistant varieties of wheat which curtailed the 1916 catastrophic outbreak of rust. He also was instrumental in… …
78Derived category — In mathematics, the derived category D(C) of an abelian category C is a construction of homological algebra introduced to refine and in a certain sense to simplify the theory of derived functors defined on C. The construction proceeds on the… …
79Lewis Turco — Lewis P. Turco (born May 2, 1934), is an American poet, teacher, and writer of fiction and non fiction. Turco is an advocate for Formalist poetry (or New Formalism) in the United States.Life and workTurco took a keen interest in poetry as a… …
80Generalized function — In mathematics, generalized functions are objects generalizing the notion of functions. There is more than one recognised theory. Generalized functions are especially useful in making discontinuous functions more like smooth functions, and (going …
