Results 21 to 30 of about 564,454 (361)

The growth of the rank of Abelian varieties upon extensions [PDF]

, 2016
Number theory, Algebra and ...
Bruin, P., Najman, F.
core   +2 more sources

The Systematic Risk at the Crisis—A Multifractal Non-Uniform Wavelet Systematic Risk Estimation

Fractal and Fractional, 2021
In the last decade, many factors, such as socio-political and econo-environmental ones, have led to a perturbation in the timeline of the worldwide development, and especially in countries and regions having political changes.
Mounir Sarraj, Anouar Ben Mabrouk
doaj   +1 more source

The Largest Subsemilattices of the Endomorphism Monoid of an Independence Algebra [PDF]

, 2014
An algebra $\A$ is said to be an independence algebra if it is a matroid algebra and every map $\al:X\to A$, defined on a basis $X$ of $\A$, can be extended to an endomorphism of $\A$.
Araújo, João, Bentz, Wolfram, Konieczny, Janusz   +2 more
core   +2 more sources

Holographic symmetry algebras for gauge theory and gravity [PDF]

Journal of High Energy Physics, 2021
All 4D gauge and gravitational theories in asymptotically flat spacetimes contain an infinite number of non-trivial symmetries. They can be succinctly characterized by generalized 2D currents acting on the celestial sphere.
A. Guevara, E. Himwich, M. Pate, A. Strominger   +3 more
semanticscholar   +1 more source

Wavelet-based systematic risk estimation for GCC stock markets and impact of the embargo on the Qatar case

Quantitative Finance and Economics, 2023
Systematic risk is one of the well-known indices involved in the market situation study. One of the disadvantages of scientific studies of market indices is the lack of involving extreme changes such as embargos and other crises in the model. The present
Anouar Ben Mabrouk, Sabrine Arfaoui, Mohamed Essaied Hamrita   +2 more
doaj   +1 more source

The biHecke monoid of a finite Coxeter group and its representations [PDF]

, 2012
For any finite Coxeter group W, we introduce two new objects: its cutting poset and its biHecke monoid. The cutting poset, constructed using a generalization of the notion of blocks in permutation matrices, almost forms a lattice on W.
Albert, Anne Schilling, Benson, Curtis, Denton, Denton, Florent Hivert, Humphreys, Le Conte de Poly-Barbut, Manivel, Nicolas Thiéry, Serre, Stanley, Thiéry, Zelevinsky   +14 more
core   +3 more sources

Wrońskian algebra and Broadhurst–Roberts quadratic relations [PDF]

Communications in Number Theory and Physics, 2020
Through algebraic manipulations on Wronskian matrices whose entries are reducible to Bessel moments, we present a new analytic proof of the quadratic relations conjectured by Broadhurst and Roberts, along with some generalizations.
Yajun Zhou
semanticscholar   +1 more source

Hall Current Effect of Magnetic-Optical-Elastic-Thermal-Diffusive Non-Local Semiconductor Model during Electrons-Holes Excitation Processes

Crystals, 2022
This paper investigates a theoretical model for the interaction between electrons and holes (E/H) in elastic non-local semiconductors. When the medium is activated by photo-energy because of high temperatures, an optical-elastic-thermal-diffusion (OETD ...
Riadh Chteoui, Khaled Lotfy, Alaa A. El-Bary, Mohamed M. Allan   +3 more
doaj   +1 more source

Algorithms in Algebraic Number Theory [PDF]

Bulletin of the American Mathematical Society, 1992
34 ...
openaire   +4 more sources

Quantum solutions of a nonlinear Schrödinger equation [PDF]

Iranian Journal of Numerical Analysis and Optimization
In the present paper, we precisely conduct a quantum calculus method for the numerical solutions of PDEs. A nonlinear Schrödinger equation is considered. Instead of the known classical discretization methods based on the finite difference scheme, Adomian
S. Arfaoui, Ben Mabrouk
doaj   +1 more source