Results 91 to 100 of about 297,060 (285)

The Matrix‐Free Macro‐Element Hybridized Discontinuous Galerkin Method for Steady and Unsteady Compressible Flows

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 97, Issue 4, Page 462-483, April 2025.
We investigate the macro‐element hybridized discontinuous Galerkin (HDG) method that combines advantages of continuous and discontinuous finite elements for compressible flow analysis. To efficiently handle large systems, we focus on computational strategies at the level of the direct local solver and the matrix‐free iterative global solver.
Vahid Badrkhani   +3 more
wiley   +1 more source

Irreducible modules for extended affine Lie algebras

open access: yesJournal of Algebra, 2011
We construct irreducible modules for twisted toroidal Lie algebras and extended affine Lie algebras. This is done by combining the representation theory of untwisted toroidal algebras with the technique of thin coverings of modules. We illustrate our method with examples of extended affine Lie algebras of Clifford type.
Yuly Billig, Michael Lau
openaire   +3 more sources

On affine motions with one-dimensional orbits in common spaces of paths

open access: yesДифференциальная геометрия многообразий фигур
The concept of a common path space was introduced by J. Duqlas. M. S. Knebelman was the first to consider affine and projective move­ments in these spaces. The general path space is a generalization of the space of affine connectivity.
N. D. Nikitin, O. G. Nikitina
doaj   +1 more source

Measure‐valued processes for energy markets

open access: yesMathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero   +3 more
wiley   +1 more source

Double affine Lie algebras and finite groups [PDF]

open access: yesPacific Journal of Mathematics, 2009
31 ...
Guay, Nicolas   +2 more
openaire   +4 more sources

Quantum Integrable Model of an Arrangement of Hyperplanes

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
The goal of this paper is to give a geometric construction of the Bethe algebra (of Hamiltonians) of a Gaudin model associated to a simple Lie algebra.
Alexander Varchenko
doaj   +1 more source

Affine characters at negative level and elliptic genera of non-critical strings

open access: yesJournal of High Energy Physics, 2023
We study the elliptic genera of the non-critical strings of six dimensional superconformal field theories from the point of view of the strings’ worldsheet theory.
David Jaramillo Duque   +1 more
doaj   +1 more source

A comparison of Hochschild homology in algebraic and smooth settings

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 4, Page 1249-1269, April 2025.
Abstract Consider a complex affine variety V∼$\tilde{V}$ and a real analytic Zariski‐dense submanifold V$V$ of V∼$\tilde{V}$. We compare modules over the ring O(V∼)$\mathcal {O} (\tilde{V})$ of regular functions on V∼$\tilde{V}$ with modules over the ring C∞(V)$C^\infty (V)$ of smooth complex valued functions on V$V$.
David Kazhdan, Maarten Solleveld
wiley   +1 more source

Brownian motion and affine Lie algebras

open access: yesJournal of Functional Analysis, 1989
AbstractAffine Lie algebras are a family of infinite-dimensional Lie algebras that are an important subclass of Kac-Moody algebras. In this paper affine Lie algebras are used to describe a theta function and Brownian motion in the framework of affine Lie algebras is used to verify some equivalent descriptions of a theta function such as those given by ...
openaire   +2 more sources

The Extended Symmetry Lie Algebra and the Asymptotic Expansion of the Transversal Correlation Function for the Isotropic Turbulence

open access: yesAdvances in Mathematical Physics, 2013
The extended symmetry of the functional of length determined in an affine space K3 of the correlation vectors for homogeneous isotropic turbulence is studied.
V. N. Grebenev   +2 more
doaj   +1 more source

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