Results 1 to 10 of about 294 (39)
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
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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
A characterization of p-bases of rings of constants
Open Mathematics, 2013 We obtain two equivalent conditions for m polynomials in n variables to form a p-basis of a ring of constants of some polynomial K-derivation, where K is a UFD of characteristic p>0.
Jędrzejewicz Piotr
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Commutative bidifferential algebra [PDF]
Journal of Algebra, 2021 . Motivated by the Poisson Dixmier-Moeglin equivalence problem, a systematic study of commutative unitary rings equipped with a biderivation , namely a binary operation that is a derivation in each argument, is here begun, with an eye toward the geometry
O. Sánchez, Rahim Moosa
semanticscholar +1 more source
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
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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 +15 more
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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
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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