Results 51 to 60 of about 4,252 (168)
Geometry of Nonequilibrium Reaction Networks
Physical Review X, 2023 The modern thermodynamics of discrete systems is based on graph theory, which provides both algebraic methods to define observables and a geometric intuition of their meaning and role.
Sara Dal Cengio +2 more
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Towards an algebraic method of solar cycle prediction
Journal of Space Weather and Space Climate, 2020 We discuss the potential use of an algebraic method to compute the value of the solar axial dipole moment at solar minimum, widely considered to be the most reliable precursor of the activity level in the next solar cycle.
Petrovay Kristóf +2 more
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Algebraic cycles and Mumford-Griffiths invariants [PDF]
American Journal of Mathematics, 2007 Let X be a projective algebraic manifold and let CHr (X) be the Chow group of algebraic cycles of codimension r on X, modulo rational equivalence. Working with a candidate Bloch- Beilinson filtration {Fν}ν≥0 on CHr (X) ⊗ ℚ due to the second author, we construct a space of arithmetic Hodge theoretic invariants ∇Jr,ν(X) and corresponding map ϕr,ν X ...
Lewis, James D., Saito, Shuji
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Normal forms and hyperbolic algebraic limit cycles for a class of polynomial differential systems
Electronic Journal of Differential Equations, 2018 We study the normal forms of polynomial systems having a set of invariant algebraic curves with singular points. We provide sufficient conditions for the existence of hyperbolic algebraic limit cycles.
Jaume Llibre, Claudia Valls
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Graph Invariants and Large Cycles: A Survey
International Journal of Mathematics and Mathematical Sciences, 2011 Graph invariants provide a powerful analytical tool for investigation of abstract substructures of graphs. This paper is devoted to large cycle substructures, namely, Hamilton, longest and dominating cycles and some generalized cycles including Hamilton ...
Zh. G. Nikoghosyan
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Coexistence of algebraic and non-algebraic limit cycles for quintic polynomial differential systems
Electronic Journal of Differential Equations, 2017 In the work by Gine and Grau [11], a planar differential system of degree nine admitting a nested configuration formed by an algebraic and a non-algebraic limit cycles explicitly given was presented.
Ahmed Bendjeddou, Rachid Cheurfa
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Quadratic systems with a symmetrical solution
Electronic Journal of Qualitative Theory of Differential Equations, 2018 In this paper we study the existence and uniqueness of limit cycles for so-called quadratic systems with a symmetrical solution: \begin{equation*} \begin{split} \frac{dx(t)}{dt}& = P_2(x,y) \equiv a_{00}+a_{10}x+a_{01}y+a_{20}x^2+a_{11}xy+a_{02}y^2 ...
Andre Zegeling, Robert Kooij
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Vanishing theorems for real algebraic cycles
American Journal of Mathematics, 2012 We establish the analogue of the Friedlander-Mazur conjecture for Teh's reduced Lawson homology groups of real varieties, which says that the reduced Lawson homology of a real quasi-projective variety $X$ vanishes in homological degrees larger than the dimension of $X$ in all weights.
Heller, Jeremiah, Voineagu, Mircea
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Multiple Logarithms, Algebraic Cycles and Trees [PDF]
, 2007 15 pages, 8 figures, accepted June 2004 for publication in the book "Frontiers in Number Theory, Physics and Geometry", Volume 2 (Cartier, Julia, Moussa, Vanhove, eds.)
Gangl, H. ; https://orcid.org/0000-0001-7785-263X +2 more
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Algebraic cycles and Gushel–Mukai fivefolds
Journal of Pure and Applied Algebra, 2021 19 pages, to appear in J. Pure and Applied Algebra, comments welcome.
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