Discrete Analogues of the Heisenberg-Weyl Algebra.
Divisible subgroups of Brauer groups and trace forms of central simple algebras.
Dual dimension of modules over normalizing extensions.
Let S = Σi=1n Rai be a finite normalizing extension of R and suppose that SM is a left S-module. Denote by crk(A) the dual Goldie dimension of the module A. We show that crk(RM) ≤ n · crk(SM) if either SM is artinian or the group homomorphism M → aiM given by x → aix is an isomorphism.
Dualities over compact rings
Duality and Completions of Linearly Topologized Modules.
Dubrovnic, Valuation Rings and Henselization.
Duo, Bézout and distributive rings of skew power series.
Dyhendral Hyperhomology Of A Chain Algebra With Involution
Embeddings into Power Series Rings.
Endlichdimensionale graduierte Algebren und ihre Darstellungen
Endomorphism Near-Ring of a Relatively Free Group.
Epis and monos which must be isos.
Errata-Corrige : “Linearly compact rings and strongly quasi-injective modules”
Erratum - On the Bohr Compactification.
Erweiterung topologischer Halbringe durch Quotienten- und Differenzenbildung.
Essai d'une théorie noethérienne homogène pour les anneaux commutatifs dont la graduation est aussi générale que possible
Existence and Posner's theorem for -derivations in prime near-rings.
Existence of pseudo-superinvolutions of the first kind.
Explicit expression of Cartan’s connection for Levi-nondegenerate 3-manifolds in complex surfaces, and identification of the Heisenberg sphere
We study effectively the Cartan geometry of Levi-nondegenerate C 6-smooth hypersurfaces M 3 in ℂ2. Notably, we present the so-called curvature function of a related Tanaka-type normal connection explicitly in terms of a graphing function for M, which is the initial, single available datum. Vanishing of this curvature function then characterizes explicitly the local biholomorphic equivalence of such M 3 ⊂ ℂ2 to the Heisenberg sphere ℍ3, such M’s being necessarily real analytic.
Exponentiation de la dérivation, et intégration des séries en variables non commutatives