Results 11 to 20 of about 4,250 (281)

Bertini theorems for differential algebraic geometry [PDF]

open access: greenProceedings of the American Mathematical Society, 2023
We study intersection theory for differential algebraic varieties. Particularly, we study families of differential hypersurface sections of arbitrary affine differential algebraic varieties over a differential field. We prove the differential analogue of Bertini’s theorem, namely that for an arbitrary geometrically irreducible differential algebraic ...
James Freitag
openaire   +4 more sources

On the Relationship Between Differential Algebra and Tropical Differential Algebraic Geometry [PDF]

open access: green, 2021
This paper presents the relationship between differential algebra and tropical differential algebraic geometry, mostly focusing on the existence problem of formal power series solutions for systems of polynomial ODE and PDE. Moreover, it improves an approximation theorem involved in the proof of the fundamental theorem of tropical differential ...
Boulier, François   +3 more
openaire   +5 more sources

Algebraic characterizations in complex differential geometry [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1935
1. In the treatment of differential geometry from the modern invariantive standpoint it is usually unnecessary that the coordinates and the functions which define the structure of the space under consideration be real quantities. Adopting the more general hypothesis of complex coordinates and structure functions we arrive at the concept of generalized ...
T. Y. Thomas
openaire   +3 more sources

Nonsmooth differential geometry and algebras of generalized functions [PDF]

open access: greenJournal of Mathematical Analysis and Applications, 2004
17 pages, typos ...
Michael Kunzinger
openaire   +4 more sources

Noncommutative Differential Geometry of Generalized Weyl Algebras [PDF]

open access: diamondSymmetry, Integrability and Geometry: Methods and Applications, 2016
Elements of noncommutative differential geometry of ${\mathbb Z}$-graded generalized Weyl algebras ${\mathcal A}(p;q)$ over the ring of polynomials in two variables and their zero-degree subalgebras ${\mathcal B}(p;q)$, which themselves are generalized Weyl algebras over the ring of polynomials in one variable, are discussed.
Tomasz Brzeziński
openaire   +7 more sources

Graded differential geometry of graded matrix algebras [PDF]

open access: greenJournal of Mathematical Physics, 1999
We study the graded derivation-based noncommutative differential geometry of the Z2-graded algebra M(n|m) of complex (n+m)×(n+m)-matrices with the “usual block matrix grading” (for n≠m). Beside the (infinite-dimensional) algebra of graded forms, the graded Cartan calculus, graded symplectic structure, graded vector bundles, graded connections and ...
Grosse, H., Reiter, G.
openaire   +4 more sources

Differential algebra (contravariant analytic methods in differential geometry) [PDF]

open access: bronzeJournal of Soviet Mathematics, 1980
The problems of developing the apparatus of differential-geometric investigations based on the calculus of differential operators on bundles of semiholonomic jets of Ehresmann are considered.
A. M. Vasil'ev
openaire   +3 more sources

Differential structures in algebraic geometry

open access: green, 2000
Cette thèse a pour objet d'une part l'étude de certaines structures différentielles sur les variétés algébriques complexes et d'autre part l'étude de faisceaux sur les hypersur-faces cubiques de l'espace projectif complexe de dimension quatre.Dans une première partie, nous donnons une description complète des structures de Poisson quasi-régulières non ...
Stéphane Druel
openaire   +3 more sources

Differential Geometry Revisited by Biquaternion Clifford Algebra [PDF]

open access: green, 2015
In the last century, differential geometry has been expressed within various calculi: vectors, tensors, spinors, exterior differential forms and recently Clifford algebras. Clifford algebras yield an excellent representation of the rotation group and of the Lorentz group which are the cornerstones of the theory of moving frames.
Girard, Patrick   +4 more
openaire   +5 more sources

Differential Bundles in Commutative Algebra and Algebraic Geometry

open access: yesTheory and Applications of Categories, 2023
In this paper, we explain how the abstract notion of a differential bundle in a tangent category provides a new way of thinking about the category of modules over a commutative ring and its opposite category. MacAdam previously showed that differential bundles in the tangent category of smooth manifolds are precisely smooth vector bundles.
Cruttwell, G. S. H.   +1 more
openaire   +3 more sources

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