Results 151 to 160 of about 73,865 (284)

A Common External Framework for Kleene and McCarthy Algebras

open access: yesMathematical Logic Quarterly, Volume 72, Issue 4, November 2026.
ABSTRACT Algebras of disjoint alternatives (ADAs), introduced by Manes, are extensions of McCarthy algebras by a unary operator acting as an oracle for the halting problem, and provide a semantics for the equational theory of the if–then–else construct.
Gandolfo Vergottini   +2 more
wiley   +1 more source

Mission‐Aligned Learning‐Informed Control of Autonomous Systems: Formulation and Foundations

open access: yesExpert Systems, Volume 43, Issue 11, November 2026.
ABSTRACT Research, innovation and practical capital investment have been increasing rapidly toward the realization of autonomous physical agents. This includes industrial and service robots, unmanned aerial vehicles, embedded control devices, and a number of other realizations of cybernetic/mechatronic implementations of intelligent autonomous devices.
Vyacheslav Kungurtsev   +7 more
wiley   +1 more source

A Note on Local Polynomial Regression for Time Series in Banach Spaces

open access: yesJournal 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

A note on commutativity of unbounded representations

open access: yes, 1993
Commutativity for unbounded representations is studied in terms of the Cayley transform.
Schōichi Ōta
core   +1 more source

Domain characterizations of strong commutativity of unbounded self‐adjoint operators

open access: yesBulletin 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

The cubed commutativity degree of dihedral groups

open access: yes, 2016
Let G be a finite group. The commutativity degree of a group is the probability that a random pair of elements in the group commute. Furthermore, the n-th power commutativity degree of a group is a generalization of the commutativity degree of a group ...
Hamid, M. A.   +7 more
core   +1 more source

Commutativity and Commutative Pairs of Some Differential Equations

open access: yesCoRR, 2017
Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115E952]
openaire   +4 more sources

Weighted veronese rings via convex semigroups

open access: yesBulletin 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

The squared Commutativity degree of dihedral groups [PDF]

open access: yes, 2016
The commutativity degree of a finite group is the probability that a random pair of elements in the group commute. Furthermore, the n-th power commutativity degree of a group is a generalization of the commutativity degree of a group which is defined as ...
Hamid, M. A.   +4 more
core  

Non(anti)commutativity for open superstrings

open access: yes, 2005
Non(anti)commutativity in an open free superstring and also one moving in a background antisymmetric tensor field is investigated. In both cases, the non(anti)commutativity is shown to be a direct consequence of the nontrivial boundary conditions which ...
Gangopadhyay S.   +3 more
core   +1 more source

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