Results 41 to 50 of about 8,504,062 (361)

On projective coordinate spaces

open access: yesFilomat, 2015
In the present study, an (n+1)-dimensional module over the local ringK = Mmm(R) is constructed. Further, an n-dimensional projective coordinate space over this module is constructed with the help of equivalence classes. The points and lines of this space are determined and the points are classified.
Erdogan, FATMA, Ciftci, Suleyman
openaire   +6 more sources

A space of projections on the Bergman space [PDF]

open access: yesAnnales Academiae Scientiarum Fennicae Mathematica, 2010
We define a set of projections on the Bergman space A 2 , which is parameterized by an ane subset of a Banach space of holomorphic functions in the disk and which includes the classical Forelli-Rudin projections.
Salvador Pérez-Esteva, Oscar Blasco
openaire   +2 more sources

A generalized Bogomolov–Gieseker inequality for the three-dimensional projective space [PDF]

open access: yes, 2012
A generalized Bogomolov–Gieseker inequality for tilt-stable complexes on a smooth projective threefold was conjectured by Bayer, Toda, and the author.
Emanuele Macrì
semanticscholar   +1 more source

Invariants on Projective Space [PDF]

open access: yesJournal of the American Mathematical Society, 1994
The paper contains some new theorems and examples of constructions of invariant nonlinear differential operators on real \(n\)-spheres. The classical theory of H. Weyl is essentially and practically extended. The results concerning spheres are transferred to projective spaces.
openaire   +1 more source

Affine Spaces within Projective Spaces [PDF]

open access: yesResults in Mathematics, 1999
We endow the set of complements of a fixed subspace of a projective space with the structure of an affine space, and show that certain lines of such an affine space are affine reguli or cones over affine reguli. Moreover, we apply our concepts to the problem of describing dual spreads. We do not assume that the projective space is finite-dimensional or
Andrea Blunck, Hans Havlicek
openaire   +3 more sources

Metrizations of Projective Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
A two-dimensional G-space,1 in which the geodesic through two distinct points is unique, is either homeomorphic to the plane E2 and all geodesics are isometric to a straight line, or it is homeomorphic to the projective plane p2 and all geodesics are isometric to the same circle, see [1, ??10 and 31]. Two problems arise in either case: (1) To determine
openaire   +2 more sources

Monads on projective spaces [PDF]

open access: yesCommunications in Algebra, 2000
This is a little investigation into the classification of complexes of direct sums of line bundles on projective spaces. We consider complexes on projective k-space Pk : O_Pk(-1)^a --> O_Pk^b --> O_Pk(1)^c, with the first map injective and the second map surjective. This is called a monad.
openaire   +4 more sources

Applications of a Particular Four-Dimensional Projective Geometry to Galactic Dynamics

open access: yesGalaxies, 2018
Relativistic location systems that extend relativistic positioning systems show that pseudo-Riemannian space-time geometry is somehow encompassed in a particular four-dimensional projective geometry.
Jacques L. Rubin
doaj   +1 more source

Centered planes in the projective connection space

open access: yesДифференциальная геометрия многообразий фигур, 2020
The space of centered planes is considered in the Cartan projec­ti­ve connection space . The space is important because it has con­nec­tion with the Grassmann manifold, which plays an important role in geometry and topology, since it is the basic space ...
O.O. Belova
doaj   +1 more source

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