Results 121 to 130 of about 10,475 (236)
On the commutator width of perfect groups
, 2016 This paper proves bounds for the commutator width of a wreath product of two groups. As a corollary, it is shown that the commutator width of finite perfect linear groups of dimension 15 is unbounded.
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A Note on Local Polynomial Regression for Time Series in Banach Spaces
Journal of Time Series Analysis, Volume 47, Issue 6, Page 1124-1138, November 2026.ABSTRACT This work extends local polynomial regression to Banach space‐valued time series for estimating smoothly varying means and their derivatives in non‐stationary data. The asymptotic properties of both the standard and bias‐reduced Jackknife estimators are analyzed under mild moment conditions, establishing their convergence rates.
Florian Heinrichs
wiley +1 more source
Domain characterizations of strong commutativity of unbounded self‐adjoint operators
Bulletin of the London Mathematical Society, Volume 58, Issue 11, November 2026.Abstract Let A$A$ and B$B$ be unbounded self‐adjoint operators on a Hilbert space. Suppose that there exists a dense linear subspace D⊆D(AB)∩D(BA)$\mathcal {D}\,\subseteq \mathcal {D}\,(AB)\cap \mathcal {D}\,(BA)$ such that ABx=BAx$ABx=BAx$ for x∈D$x \in \mathcal {D}$. We give some characterizations of the strong commutativity of A$A$ and B$B$ in terms
Konrad Schmüdgen
wiley +1 more source
A Slovenian company Kolektor: Its development and evolution into a multinational enterprise
Journal of Human Resource Management, 2018 Kolektor is a Slovenian company producing commutators, small components of motors. It was established in 1963 and came to cooperate with a West German company in 1968. It endeavored to absorb advanced technology from the partner, concentrate on education
Yoji Koyama
doaj
Weighted veronese rings via convex semigroups
Bulletin of the London Mathematical Society, Volume 58, Issue 11, November 2026.Abstract We determine several properties of two‐dimensional normal affine semigroup rings, and in particular of weighted Veronese rings, including determinantal presentations, Gröbner bases, graded Hilbert series and graded Betti numbers, the structure of their associated graded rings, and their Koszul property.
Bek Chase +6 more
wiley +1 more source
Commutator End Cover Blueprint
Special commutator end cover for P3 motor by Mather and Platt Ltd Manchester, full size.
Mather and Platt
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Two elementary commutativity theorems for generalized boolean rings
International Journal of Mathematics and Mathematical Sciences, 1997 In this paper we prove that if R is a ring with 1 as an identity element in which xm−xn∈Z(R) for all x∈R and fixed relatively prime positive integers m and n, one of which is even, then R is commutative.
Vishnu Gupta
doaj +1 more source
Commutativity and Commutative Pairs of Some Differential Equations
CoRR, 2017 Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115E952]
openaire +4 more sources
Irish Mathematical Society Bulletin, 1996 Summary: We exhibit with proof a ring of minimal order in which the commutator subset is not a subring.
openaire +2 more sources
Line skip commutator for a solid state celestial field scanner [PDF]
, 1969 Line skip commutator for solid state celestial field scanner using matrix ...
Hanlet, J. M., Hell, W. H., Haas, R. W.
core