Results 21 to 30 of about 18,023 (119)

The Bond-Algebraic Approach to Dualities [PDF]

, 2011
An algebraic theory of dualities is developed based on the notion of bond algebras. It deals with classical and quantum dualities in a unified fashion explaining the precise connection between quantum dualities and the low temperature (strong-coupling ...
Barton G., Baxter R. J., Berezinskii V. L., Bredon G. E., David Mermin N., Dirac P. A.M., Emilio Cobanera, Fradkin E., Gerardo Ortiz, Henkel M., Kadanoff L. P., Kittel C., Maldacena J. M., Martin P., Nahin P. J., Ortiz G., Rivers R. J., Rotman J. J., Schulman L. S., Schwinger J., Sewell G., Sunder V. S., Suzuki M., Takahashi Y., Terras A., von Neumann J., Wen X.-G., Witten E., Zohar Nussinov   +28 more
core   +1 more source

Reduction of Lie-Jordan Banach algebras and quantum states

, 2012
A theory of reduction of Lie-Jordan Banach algebras with respect to either a Jordan ideal or a Lie-Jordan subalgebra is presented. This theory is compared with the standard reduction of C*-algebras of observables of a quantum system in the presence of ...
A Ibort, Dirac P A M, Emch G G, F Falceto, G Marmo, Giachetta G, Grabowski J, Haag R, Ibort A, Kadison R V, L Ferro   +10 more
core   +1 more source

Improving child mental health and learning outcomes and reducing stigma and discrimination in conflict setting: findings from a cluster randomized controlled trial of a classroom‐based psychosocial intervention in rural primary schools in Afghanistan

Journal of Child Psychology and Psychiatry, EarlyView.
Background Conflict and crises have long‐lasting and dramatic consequences on the mental health of children. We aimed to investigate the effectiveness of a psychosocial intervention on child mental health in Afghanistan. Methods A two‐arm cluster‐randomized controlled trial was conducted in 83 rural primary schools within three provinces of Afghanistan.
Jean‐Francois Trani, Yiqi Zhu, Saria Bechara, Shuya Yin, Parul Bakhshi, Ian Kaplan, Ramkrishna K. Singh, Mohammed A. Modaber, Hashim Rawab, Madelyn Yoo, Kim Thuy Seelinger, Ganesh M. Babulal, Ramesh Raghavan   +12 more
wiley   +1 more source

On representations of dialgebras and conformal algebras

, 2011
In this note, we observe a relation between dialgebras (in particular, Leibniz algebras) and conformal algebras. The purpose is to show how the methods of conformal algebras help solving problems on dialgebras, and, conversely, how the ideas of ...
Kolesnikov, Pavel
core   +1 more source

The Two-fold Role of Observables in Classical and Quantum Kinematics [PDF]

, 2017
Observables have a dual nature in both classical and quantum kinematics: they are at the same time \emph{quantities}, allowing to separate states by means of their numerical values, and \emph{generators of transformations}, establishing relations between
Zalamea, Federico
core   +2 more sources

The Natural Components of a Regular Linear System

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT The analysis of a finite‐dimensional regular linear system may be simplified by separating the system into its natural components. The natural components are smaller linear systems on separate subspaces whose dimensions sum to the dimension of the original linear system.
Brendan K. Beare, Phil Howlett
wiley   +1 more source

The Mathematical History Behind the Granger–Johansen Representation Theorem

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
wiley   +1 more source

Optimizing Large‐Scale Mathematical Assessments: Leveraging Hierarchical Attribute Structures and Diagnostic Classification Models for Enhanced Student Diagnostics

Educational Measurement: Issues and Practice, Volume 45, Issue 2, Summer 2026.
Abstract Diagnostic classification models (DCMs) assess students’ mastery of cognitive attributes to provide personalized ability profiles. Retrofitting DCMs to large‐scale mathematics assessments usually relies on inferred Q‐matrices, which can reduce accuracy and diagnostic value.
Farshad Effatpanah, Olga Kunina‐Habenicht, Steve Bernard, Caroline Hornung, Philipp Sonnleitner   +4 more
wiley   +1 more source

V.M. Miklyukov: from dimension 8 to nonassociative algebras

, 2019
In this short survey we give a background and explain some recent developments in algebraic minimal cones and nonassociative algebras. A good deal of this paper is recollections of my collaboration with my teacher, PhD supervisor and a colleague ...
Tkachev, Vladimir G.
core   +1 more source

An extended definition of Anosov representation for relatively hyperbolic groups

Journal of Topology, Volume 19, Issue 2, June 2026.
Abstract We define a new family of discrete representations of relatively hyperbolic groups which unifies many existing definitions and examples of geometrically finite behavior in higher rank. The definition includes the relative Anosov representations defined by Kapovich–Leeb and Zhu, and Zhu–Zimmer, as well as holonomy representations of various ...
Theodore Weisman
wiley   +1 more source