Results 91 to 100 of about 11,023 (307)

Unitary equivalence in generalized uncertainty principle theories

open access: yesNuclear Physics B
We analyze the issue of unitary equivalence within Generalized Uncertainty Principle (GUP) theories in the one-dimensional case. For a deformed Heisenberg algebra, its representation in terms of Hilbert space and conjugate operators is not uniquely ...
Sebastiano Segreto, Matteo Bruno
doaj   +1 more source

Berry phases on Virasoro orbits

open access: yesJournal of High Energy Physics, 2017
We point out that unitary representations of the Virasoro algebra contain Berry phases obtained by acting on a primary state with conformal transformations that trace a closed path on a Virasoro coadjoint orbit.
Blagoje Oblak
doaj   +1 more source

Sleep‐trackers in the wild: A faceted taxonomy for information and interaction design

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Consumer‐grade sleep‐tracking technologies (CSTs) have brought sleep into everyday data practices, reframing it from a clinical concern into a site of personal optimization and reflection. Yet existing taxonomies of sleep‐tracking often medicalize users and overlook the complexity of sleep‐tracking technologies. This paper presents SleepTax, a
Sanonda Datta Gupta   +2 more
wiley   +1 more source

Branching problems of unitary representations

open access: yesProceedings of the Symposium on Representation Theory, 2002
The irreducible decomposition of a unitary representation often contains continuous spectrum when restricted to a non-compact subgroup. The author singles out a nice class of branching problems where each irreducible summand occurs discretely with finite multiplicity (admissible restrictions).
openaire   +2 more sources

Auditory Sensitivity in Autism: A Systematic Review of Mismatch Negativity and Mismatch Field Responses

open access: yesAutism Research, EarlyView.
ABSTRACT Auditory mismatch responses—mismatch negativity (MMN) and mismatch fields (MMF)—are well established electrophysiological markers of automatic auditory discrimination supported by short‐term sensory memory. These responses, typically elicited using passive oddball paradigms, are increasingly used to investigate sensory and language processing ...
Sara Cacciato‐Salcedo   +4 more
wiley   +1 more source

Unitary representations of locally compact groups as metric structures

open access: yes, 2021
Ce PDF est la version preprint de l'article (version soumise à l'éditeur, avant peer-reviewing)International audienceFor a locally compact group $G$, we show that it is possible to present the class of continuous unitary representations of $G$ as an ...
Goldbring, Isaac, Ben Yaacov, Itaï
core   +1 more source

The Unique Roles of Executive Function in Co‐Occurring Psychopathologies in Autism

open access: yesAutism Research, EarlyView.
ABSTRACT Children with autism spectrum disorder (ASD) often experience co‐occurring psychiatric conditions, such as anxiety and attention‐deficit/hyperactivity disorder (ADHD), which significantly impair daily functioning. However, the underlying mechanisms linking these conditions to core ASD features remain poorly understood.
Shing‐Him Ng   +13 more
wiley   +1 more source

UNITARY REPRESENTATIONS OF SOME INFINITE DIMENSIONAL GROUPS

open access: yes, 1981
We construct projective unitary representations of (a) Map(S1;G), the group of smooth maps from the circle into a compact Lie group G, and (b) the group of diffeomorphisms of the circle.
SEGAL, G
core   +1 more source

The Burau representation is unitary [PDF]

open access: yesProceedings of the American Mathematical Society, 1984
A slight modification of the Burau representation of the braid group is shown to be unitary relative to an explicitly defined Hermitian form. This gives a partial answer to the problem of identifying the image of the Burau representation and provides a tool for attacking the question of whether or not the Burau representation is faithful.
openaire   +1 more source

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