Results 61 to 70 of about 4,252 (168)

Algebraic Cycles and Even Unimodular Lattices [PDF]

Journal of the London Mathematical Society, 1997
It is known that when \(n \geq 1\) and \(q = p^{f}\), \(p\) a prime number and \(f \geq 1\) an integer, the finite unitary group \(G = U_{n+2}(q)\) has an irreducible unipotent complex character say \(\zeta\) of degree \((q^{n+2}+q(-1)^{n})/(q+1)\); this character is an example of the so-called Weil characters of \(G\).
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A family of planar differential systems with hyperbolic algebraic limit cycles

Electronic Journal of Qualitative Theory of Differential Equations
In this paper, we characterize a family of planar polynomial differential systems of degree greater or equal than $n+1$, by presenting polynomial curves of degree $n,$ which generally contain closed components.
Maroua Ghelmi, Aziza Berbache
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Algebraic cycles and fibrations

Documenta Mathematica, 2013
Let f:X \rightarrow B be a projective surjective morphism between quasi-projective varieties. The goal of this paper is the study of the Chow groups of X in terms of
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Algebraic cycles of a fixed degree [PDF]

Proceedings of the American Mathematical Society, 2010
In this paper, the homotopy groups of Chow variety C p , d ( P n ) C_{p,d}(\mathbb {P}^n) of effective p p -cycles of degree d d are proved to be stable in the ...
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Erlangen Program at Large-1: Geometry of Invariants

Symmetry, Integrability and Geometry: Methods and Applications, 2010
This paper presents geometrical foundation for a systematic treatment of three main (elliptic, parabolic and hyperbolic) types of analytic function theories based on the representation theory of SL_2(R) group. We describe here geometries of corresponding
Vladimir V. Kisil
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Dulac-Cherkas functions for generalized Liénard systems

Electronic Journal of Qualitative Theory of Differential Equations, 2011
Dulac-Cherkas functions can be used to derive an upper bound for the number of limit cycles of planar autonomous differential systems including criteria for the non-existence of limit cycles, at the same time they provide information about their ...
A. Grin, Klaus Schneider, L. Cherkas
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On Restrained Neutrosophic Domination Number on Special Graphs [PDF]

Neutrosophic Sets and Systems
Neutrosophic theory, which generalizes fuzzy and classical logic by combining the notions of truth, indeterminacy, and falsity, has emerged as a powerful framework in modeling uncertainty.
R. Shanmugapriya, N. C. Hemalatha
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Torsion algebraic cycles and étale cobordism

Advances in Mathematics, 2011
Following an idea of Totaro, we prove that the classical integral cycle class map from algebraic cycles to tale cohomology factors through a quotient of $\ell$-adic tale cobordism over an algebraically closed field of positive characteristic. This shows that there is a strong topological obstruction for cohomology classes to be algebraic and that ...
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Algebraic cycles and triple $K3$ burgers [PDF]

Arkiv för Matematik, 2019
26 pages, to appear in Arkiv f\"or Matematik, comments ...
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Algebraic construction of a coboundary of a given cycle [PDF]

Opuscula Mathematica, 2007
We present an algebraic construction of the coboundary of a given cycle as a simpler alternative to the geometric one introduced in [M. Allili, T. Kaczyński, Geometric construction of a coboundary of a cycle, Discrete Comput. Geom. 25 (2001), 125–140, T.
Marcin Mazur, Jacek Szybowski
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