4 citations · 10 across the 10 of their papers we have counts for
10 papers
Automorphism group of a toric variety
M. T Sancho, J. P Moreno, Carlos Sancho
We calculate the automorphism group of a complete toric variety with torus . We prove that the radical unipotent of is a semidirect product of additive groups,…
Mittag-Leffler functors of modules
C. Sancho, F. Sancho, P. Sancho
Finite modules, finitely presented modules and Mittag-Leffler modules are characterized by their behaviour by tensoring with direct products of modules. In this paper, we study and…
Functorial characterization of Mittag-Leffler modules
Carlos Sancho, Fernando Sancho, Pedro Sancho
We give a functorial characterization of Mittag-Leffler modules and strict Mittag-Leffler modules.
Flat SML modules and reflexive functors
Carlos Sancho, Fernando Sancho, Pedro Sancho
We give some functorial characterizations of flat strict Mittag-Leffler modules. We characterize reflexive functors of modules with similar tools, definitions and theorems.
Geometric characterization of flat modules
Carlos Sancho, Fernando Sancho, Pedro Sancho
Let be a commutative ring. Roughly speaking, we prove that an -module is flat iff it is a direct limit of -module affine algebraic varieties, and is a flat Mittag…
Reflexive functors of modules in Commutative Algebra
J. Navarro, C. Sancho, P. Sancho
Reflexive functors of modules naturally appear in Algebraic Geometry, mainly in the theory of linear representations of group schemes, and in "duality theories". In this paper we s…