Results 41 to 50 of about 14,865,566 (335)
Lifting of projectable vector fields to vertical fiber product preserving vector bundles [PDF]
summary:We classify all natural operators lifting projectable vector fields from fibered manifolds to vector fields on vertical fiber product preserving vector bundles.
Mikulski, Włodzimierz M. +1 more
core +1 more source
On the structure of characteristic surfaces related with partial differential equations of first and higher orders. Part 1 [PDF]
The geometric structure of characteristic surfaces related with partial differential equations of first and higher orders is studied making use the vector field technique on hypersurfaces.
Natalia K. Prykarpatska +1 more
doaj
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cima, Anna +2 more
openaire +2 more sources
On an Anti-Torqued Vector Field on Riemannian Manifolds
A torqued vector field ξ is a torse-forming vector field on a Riemannian manifold that is orthogonal to the dual vector field of the 1-form in the definition of torse-forming vector field. In this paper, we introduce an anti-torqued vector field which is
Sharief Deshmukh +2 more
doaj +1 more source
On Regularized Reconstruction of Vector Fields [PDF]
In this paper, we give a general characterization of regularization functionals for vector field reconstruction, based on the requirement that the said functionals satisfy certain geometric invariance properties with respect to transformations of the coordinate system.
Tafti, Pouya Dehghani, Unser, Michael
openaire +5 more sources
Classification of torqued vector fields and its applications to Ricci solitons
Recently, the author defined torqued vector fields in [Kragujevac J. Math. 41(1) (2017), 93–103]. In this paper, we classify all torqued vector fields on Riemannian manifolds. Moreover, we investigate Ricci solitons with torqued potential fields.
Bang-Yen Chen
semanticscholar +1 more source
A comprehensive survey on support vector machine classification: Applications, challenges and trends
In recent years, an enormous amount of research has been carried out on support vector machines (SVMs) and their application in several fields of science.
Jair Cervantes +3 more
semanticscholar +1 more source
Complete algebraic vector fields on Danielewski surfaces [PDF]
We give the classification of all complete algebraic vector fields on Danielewski surfaces (smooth surfaces given by xy=p(z)). We use the fact that for each such vector field there exists a certain fibration that is preserved under its flow.
Leuenberger, Matthias
core +2 more sources
Bifurcations of Optimal Vector Fields [PDF]
We study the structure of the solution set of a class of infinite-horizon dynamic programming problems with one-dimensional state spaces, as well as their bifurcations, as problem parameters are varied. The solutions are represented as the integral curves of a multivalued optimal vector field on state space.
Tatiana Kiseleva, Florian Wagener
openaire +7 more sources
VECTOR FIELD AND INFLATION [PDF]
We have investigated if the vector field can give rise to an accelerating phase in the early universe. We consider a timelike vector field with a general quadratic kinetic term in order to preserve an isotropic background spacetime. The vector field potential is required to satisfy the three minimal conditions for successful inflation: i) ρ > 0, ii)
openaire +2 more sources

