We study Weyl structures on lightlike hypersurfaces endowed with a conformal structure of certain type and specific screen distribution: the Weyl screen structures. We investigate various differential geometric properties of Einstein–Weyl screen st [...]
We provide two new algorithms with applications to asymptotically exact minimizations with inequalities constraints. These results generalize and improve the works of Andreani, Birgin, Martinez and Schuverdt on minimization with equality constraint [...]
We introduced recently a model that takes into account multi-mutation and drug resistance of tumor cells in a case of simple immune system and immune-suppression caused by the resistant tumor cells. The present study is to apply the Nonstandard finit [...]
Soient (M, g) une variete riemannienne compacte de type hyperbolique sans points conjugues et X son revhement universel. On montre dans cette Note que le volume des spheres geodesiques de X est de croissance exponentielle pure. Ce resultat nous pen [...]
Let K be a field and KQ be a noetherian path algebra for the quiver Q. Given a left (resp. right) finitely generated ideal I of KQ, we propose a new idea for computing left (resp. right) Groebner bases on KQ. As application, we propose a method for [...]
In this paper we prove that any Malcev superalgebra has a Lie supertriple system structure and a Bol superalgebra structure. [...]
In this paper, we describe color Hom-Poisson structures in terms of a single bilinear operation. This enables us to explore color Hom-Poisson algebras in the realm of non-Hom-associative color algebras. [...]
Every multiplicative Hom-Maltsev algebra has a natural multiplicative Hom-Lie triple system structure. Moreover, there is a natural Hom-Bol algebra structure on every multiplicative Hom-Maltsev algebra and on every multiplicative right (or left) Hom [...]
We show that the sublinearity hypothesis of some well-known existence results on multipoint Boundary Value Problems (in short BVPs) may allow the existence of infinitely many solutions by using Tietze extension theorem. This is a qualitative result [...]
We prove the existence of a curve (with respect to the scalar delay) of periodic positive solutions for a smooth model of Cooke- Kaplan’s integral equation by using the implicit function theorem under suitable conditions. We also show a situation in [...]