Results 31 to 40 of about 291 (46)
Connections on modules over quasi-homogeneous plane curves
Let k be an algebraically closed field of characteristic 0, and let $A = k[x,y]/(f)$ be a quasi-homogeneous plane curve. We show that for any graded torsion free A-module M, there exists a natural graded integrable connection, i.e.
Arnol'd V. I.+3 more
core +2 more sources
Amitsur's theorem, semicentral idempotents, and additively idempotent semirings
The article explores research findings akin to Amitsur’s theorem, asserting that any derivation within a matrix ring can be expressed as the sum of an inner derivation and a hereditary derivation.
Rachev Martin, Trendafilov Ivan
doaj +1 more source
A note on integrating group scheme actions
We prove a non-integrability result concerning iterative derivations on projective line, where the iterative rule is given by a non-algebraic formal ...
Hoffmann, Daniel, Kowalski, Piotr
core +1 more source
Derivations of negative degree on quasihomogeneous isolated complete intersection singularities [PDF]
J. Wahl conjectured that every quasihomogeneous isolated normal singularity admits a positive grading for which there are no derivations of negative weighted degree.
Granger, Michel, Schulze, Mathias
core +2 more sources
On homogeneous locally nilpotent derivations of trinomial algebras
We provide an explicit description of homogeneous locally nilpotent derivations of the algebra of regular functions on affine trinomial hypersurfaces. As an application, we describe the set of roots of trinomial algebras.Comment: 14 pages.
Gaifullin, Sergey, Zaitseva, Yulia
core +1 more source
Some conditions under which Jordan derivations are zero
In the current article, we obtain the following results: Let A be an algebra and P be a semi-prime ideal of A. Suppose that d:Aâ(A/P) is a Jordan derivation such that dim{d(a)|aâA}â¤1. If d(P)={0}, then d is zero.
Z. Jokar, A. Hosseini, A. Niknam
doaj
Notes on the characterization of derivations
Although the characterization of ring derivations has an extensive literature, up to now, all of the characterizations have had the following form: additivity and another property imply that the function in question is a derivation.
Gselmann, Eszter
core
Generalized higher (U,M)-derivations in prime Γ-Rings. [PDF]
Rahman MM, Paul AC.
europepmc +1 more source
Identification of epithelial stromal interaction 1 as a novel effector downstream of Krüppel-like factor 8 in breast cancer invasion and metastasis. [PDF]
Li T+7 more
europepmc +1 more source