Results 161 to 170 of about 2,694 (314)

How Far Are Two Symmetric Matrices From Commuting? With an Application to Object Characterisation and Identification in Metal Detection

Mathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 1914-1942, February 2026.
ABSTRACT Examining the extent to which measurements of rotation matrices are close to each other is challenging due measurement noise. To overcome this, data is typically smoothed, and the Riemannian and Euclidean metrics are applied. However, if rotation matrices are not directly measured and are instead formed by eigenvectors of measured symmetric ...
P. D. Ledger, W. R. B. Lionheart, J. Elgy   +2 more
wiley   +1 more source

Commutative avatars of representations of semisimple Lie groups. [PDF]

Proc Natl Acad Sci U S A
Hausel T.
europepmc   +1 more source

On Regular Fréchet-Lie Groups III; A Second Cohomology Class Related to the Lie Algebra of Pseudo-Differential Operators of Order One [PDF]

, 1981
Osamu Kobayashi, Yoshiaki Maeda, Hideki Omori, Akira Yoshioka   +3 more
openalex   +1 more source

Models in Decision‐Making Under Risk and Uncertainty

Journal of Economic Surveys, Volume 40, Issue 1, Page 304-320, February 2026.
ABSTRACT This paper systematically compares dominant frameworks for modeling decision‐making under risk and uncertainty, evaluating their theoretical trade‐offs and practical relevance for economic research. We establish key criteria for model selection—including predictive accuracy, descriptive realism, computational tractability, and ecological ...
Martin Höppner
wiley   +1 more source

Decompositions of Hyperbolic Kac-Moody Algebras with Respect to Imaginary Root Groups. [PDF]

Commun Math Phys
Feingold AJ, Kleinschmidt A, Nicolai H.
europepmc   +1 more source

3. Lie groups and Lie algebras [PDF]

, 2016
Abram I. Fet
openalex   +1 more source

Nonemptiness of the Alpha‐Core

Journal of Public Economic Theory, Volume 28, Issue 1, February 2026.
ABSTRACT We prove nonemptiness of the α $\alpha $‐core for balanced games with nonordered preferences, extending and generalizing in several aspects the results of Scarf (1971), Border (1984), Florenzano (1989), Yannelis (1991b), and Kajii (1992). In particular, we answer an open question in Kajii (1992) regarding the applicability of the nonemptiness ...
V. Filipe Martins‐da‐Rocha, Nicholas C. Yannelis   +1 more
wiley   +1 more source

Lie algebras of quotient groups

44 pages. Comments welcome!
openaire   +4 more sources

Quadratic Motion Polynomials with Irregular Factorizations. [PDF]

Adv Appl Clifford Algebr
Thimm DA, Li Z, Schröcker HP, Siegele J.   +3 more
europepmc   +1 more source

Looking Back to 1991 Economic Forecasting: Introducing Cointegration

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 1, Page 1-21, February 2026.
ABSTRACT Originally written in 1991 to advance the formal analysis of macroeconomic forecasting models and methods following the development of cointegration, alternative forecasting devices, conditional and unconditional forecasts, and data accuracy are considered.
David F. Hendry
wiley   +1 more source