Results 31 to 40 of about 74,402 (284)

Mixing quantum and classical mechanics and uniqueness of Planck's constant [PDF]

open access: yes, 2003
Observables of quantum or classical mechanics form algebras called quantum or classical Hamilton algebras respectively (Grgin E and Petersen A (1974) {\it J Math Phys} {\bf 15} 764\cite{grginpetersen}, Sahoo D (1977) {\it Pramana} {\bf 8} 545\cite{sahoo})
Aleksandrov I V   +36 more
core   +2 more sources

Duan's fixed point theorem: Proof and generalization

open access: yesFixed Point Theory and Applications, 2006
Let X be an H-space of the homotopy type of a connected, finite CW-complex, f:X→X any map and pk:X→X the kth power map. Duan proved that pkf:X→X has a fixed point if k≥2. We give a new, short and elementary proof of this.
Martin Arkowitz
doaj   +4 more sources

Perfect hypercomplex algebras: Semi-tensor product approach

open access: yesMathematical Modelling and Control, 2021
The set of associative and commutative hypercomplex numbers, called the perfect hypercomplex algebras (PHAs) is investigated. Necessary and sufficient conditions for an algebra to be a PHA via semi-tensor product (STP) of matrices are reviewed.
Daizhan Cheng   +4 more
doaj   +1 more source

An Introduction to Predictive Processing Models of Perception and Decision‐Making

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract The predictive processing framework includes a broad set of ideas, which might be articulated and developed in a variety of ways, concerning how the brain may leverage predictive models when implementing perception, cognition, decision‐making, and motor control.
Mark Sprevak, Ryan Smith
wiley   +1 more source

Product States of Infinite Tensor Product of JC-algebras

open access: yesAxioms
The objective of our study is to generalize the results on product states of the tensor product of two JC-algebras to infinite tensor product JC-algebras.
Fatmah B. Jamjoom, Fadwa M. Algamdei
doaj   +1 more source

Galilean contractions of W-algebras

open access: yesNuclear Physics B, 2017
Infinite-dimensional Galilean conformal algebras can be constructed by contracting pairs of symmetry algebras in conformal field theory, such as W-algebras.
Jørgen Rasmussen, Christopher Raymond
doaj   +1 more source

The tensor product of m-partition algebras as a centralizer algebra of

open access: yesMathematics Open
In this paper, we concentrate on the generalized Jones result in Kennedy and Jaish (2021) which says that [Formula: see text], the tensor product of m-partition algebras is a centralizer algebra of the action of the direct product of symmetric groups ...
Amani M. Alfadhli
doaj   +1 more source

Tensor Products of Polynomial Identity Algebras [PDF]

open access: yesTransactions of the American Mathematical Society, 1971
We investigate matrix algebras and tensor products of associative algebras over a commutative ring R with identity, such that the algebra satisfies a polynomial identity with coefficients in R. We call A a P. I. algebra over R if there exists a positive integer n and a polynomial f in n noncommuting variables with coefficients in R, not annihilating A,
openaire   +3 more sources

The q-Onsager algebra and its alternating central extension

open access: yesNuclear Physics B, 2022
The q-Onsager algebra Oq has a presentation involving two generators W0, W1 and two relations, called the q-Dolan/Grady relations. The alternating central extension Oq has a presentation involving the alternating generators {W−k}k=0∞, {Wk+1}k=0∞, {Gk+1}k=
Paul Terwilliger
doaj   +1 more source

Tensor products of homotopy Gerstenhaber algebras

open access: yes, 2010
On the tensor product of two homotopy Gerstenhaber algebras we construct a Hirsch algebra structure which extends the canonical dg algebra structure. Our result applies more generally to tensor products of "level 3 Hirsch algebras" and also to the Mayer ...
Franz, Matthias
core   +1 more source

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