Results 1 to 10 of about 297 (48)

THE LIPMAN–ZARISKI CONJECTURE IN GENUS ONE HIGHER [PDF]

Forum of Mathematics, Sigma, 2020
We prove the Lipman–Zariski conjecture for complex surface singularities with $p_{g}-g-b\leqslant 2$. Here $p_{g}$ is the geometric genus, $g$ is the sum of the genera of exceptional curves and $b$ is the first Betti number of the dual graph.
HANNAH BERGNER, PATRICK GRAF
doaj   +4 more sources

Divergence-free polynomial derivations [PDF]

, 2017
In this paper we present some new and old properties of divergences and divergence-free ...
Nowicki, Andrzej
core   +2 more sources

Irreducible Jacobian derivations in positive characteristic

Open Mathematics, 2014
We prove that an irreducible polynomial derivation in positive characteristic is a Jacobian derivation if and only if there exists an n-1-element p-basis of its ring of constants. In the case of two variables we characterize these derivations in terms of
Jędrzejewicz Piotr
doaj   +3 more sources

Recent developments in combinatorial aspects of normal ordering

Enumerative Combinatorics and Applications, 2021
In this paper, we report on recent progress concerning combinatorial aspects of normal ordering. After giving a short introduction to the history and motivation of normal ordering, we present some recent developments.
M. Schork
semanticscholar   +1 more source

Almost partial generalized Jordan derivations: a fixed point approach

Journal of Inequalities and Applications, 2012
Using fixed point method, we investigate the Hyers-Ulam stability and the superstability of partial generalized Jordan derivations on Banach modules related to Jensen type functional equations.Mathematics Subject Classification 2010: Primary, 39B52 ...
M. Gordji, Choonkill Park, Jung Rye Lee
semanticscholar   +2 more sources

Images of Locally Finite Derivations of Polynomial Algebras in Two Variables [PDF]

, 2010
In this paper we show that the image of any locally finite $k$-derivation of the polynomial algebra $k[x, y]$ in two variables over a field $k$ of characteristic zero is a Mathieu subspace.
Arno van den Essen, Bass, Cerveau, David Wright, Duistermaat, Freudenburg, Mathieu, Ostrowski, Ostrowski, Stein, Sturmfels, van den Essen, van den Essen, Wenhua Zhao, Zhao, Zhao   +15 more
core   +4 more sources

Separating invariants for the basic G_a-actions [PDF]

, 2010
We explicitly construct a finite set of separating invariants for the basic $\Ga$-actions. These are the finite dimensional indecomposable rational linear representations of the additive group $\Ga$ of a field of characteristic zero, and their invariants
Elmer, Jonathan, Kohls, Martin
core   +2 more sources

Stability and superstability of generalized quadratic ternary derivations on non-Archimedean ternary Banach algebras: a fixed point approach

Fixed Point Theory and Applications, 2012
Using fixed point method, we prove the Hyers-Ulam stability and the superstability of generalized quadratic ternary derivations on non-Archimedean ternary Banach algebras.
Choonkill Park, M. Gordji, Y. Cho
semanticscholar   +1 more source

Jordan Derivations on Lie Ideals of Prime T-Rings

, 2017
The details of the research can be found in the full paper. Keywords: Derivation, Jordan derivation, Lie ideal, admissible Lie ideal, square closed Lie ideal,prime ????-ring.2010 AMS Subject Classication: Primary 13N15; Secondary 16W10,17C50.
A. C. Paul, Mizanor Rahman
semanticscholar   +1 more source

Some conditions under which Jordan derivations are zero

Journal of Taibah University for Science, 2017
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:A→(A/P) is a Jordan derivation such that dim{d(a)|a∈A}≤1. If d(P)={0}, then d is zero.
Z. Jokar, A. Hosseini, A. Niknam
doaj   +1 more source