Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Lesfari A."'
Autor:
Lesfari A.
Publikováno v:
Annals of the West University of Timisoara: Mathematics and Computer Science, Vol 58, Iss 1, Pp 4-17 (2022)
The Riemann-Roch theorem is of utmost importance and a vital tool to the fields of complex analysis and algebraic geometry, specifically in the algebraic geometric theory of compact Riemann surfaces. It tells us how many linearly independent meromorp
Externí odkaz:
https://doaj.org/article/b78ec550362245488c60e66b9d24b570
Autor:
Lesfari A.
Publikováno v:
Annals of the West University of Timisoara: Mathematics and Computer Science, Vol 53, Iss 1, Pp 109-136 (2015)
In this paper I present the basic ideas and properties of the complex algebraic completely integrable dynamical systems. These are integrable systems whose trajectories are straight line motions on complex algebraic tori (abelian varieties). We make,
Externí odkaz:
https://doaj.org/article/58cc0fc511674d1ca9bbe11281fa25f6
Autor:
Becchetti, Luca, da Cunha, Arthur Carvalho Walraven, Clementi, Andrea, d'Amore, Francesco, Lesfari, Hicham, Natale, Emanuele, Trevisan, Luca
In the Random Subset Sum Problem, given $n$ i.i.d. random variables $X_1, ..., X_n$, we wish to approximate any point $z \in [-1,1]$ as the sum of a suitable subset $X_{i_1(z)}, ..., X_{i_s(z)}$ of them, up to error $\varepsilon$. Despite its simple
Externí odkaz:
http://arxiv.org/abs/2207.13944
Autor:
da Cunha, Arthur, d'Amore, Francesco, Giroire, Frédéric, Lesfari, Hicham, Natale, Emanuele, Viennot, Laurent
The average properties of the well-known Subset Sum Problem can be studied by the means of its randomised version, where we are given a target value $z$, random variables $X_1, \ldots, X_n$, and an error parameter $\varepsilon > 0$, and we seek a sub
Externí odkaz:
http://arxiv.org/abs/2204.13929
Publikováno v:
In European Journal of Combinatorics June 2024 119
Autor:
Lesfari, A.
The Poincar\'{e} lemma (or Volterra theorem) is of utmost importance both in theory and in practice. It tells us every differential form which is closed, is locally exact. In other words, on a contractible manifold all closed forms are exact. The aim
Externí odkaz:
http://arxiv.org/abs/1905.13347
Autor:
Lesfari, A.
This paper is devoted to the study of symplectic manifolds and their connection with Hamiltonian dynamical systems. We review some properties and operations on these manifolds and see how they intervene when studying the complete integrability of the
Externí odkaz:
http://arxiv.org/abs/1904.01236
Autor:
Lesfari, A.
This paper is devoted to the study of some connections between coadjoint orbits in infinite dimensional Lie algebras, isospectral deformations and linearization of dynamical systems. We explain how results from deformation theory, cohomology groups a
Externí odkaz:
http://arxiv.org/abs/1902.00225
Autor:
Lesfari, A.
Theta functions play a major role in many current researches and are powerful tools for studying integrable systems. The purpose of this paper is to provide a short and quick exposition of some aspects of meromorphic theta functions for compact Riema
Externí odkaz:
http://arxiv.org/abs/1611.04191
Autor:
Lesfari, A.
In this paper we construct a new completely integrable system. This system is an instance of a master system of differential equations in $5$ unknowns having $3$ quartics constants of motion.We find via the Painlev\'e analysis the principal balances
Externí odkaz:
http://arxiv.org/abs/1401.3575