Results 231 to 240 of about 4,733 (266)

On Quantum Relations. [PDF]

open access: yesEntropy (Basel)
Dubois F, Toffano Z.
europepmc   +1 more source

Algebraic cycles and Beauville’s involution

European Journal of Mathematics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Decomposability of Reflexive Cycle Algebras

Journal of the London Mathematical Society, 1995
We give, for each \(n\geq 3\), an example of a reflexive operator algebra \({\mathcal A}_ n\) with the following properties: (i) each finite rank operator with rank less than \(n-1\) is the sum of rank-one operators in \({\mathcal A}_ n\), and (ii) there is an operator of rank \(n-1\) in \({\mathcal A}_ n\) which is not the sum of rank-one operators in
Harrison, K. J., Mueller, U. A.
openaire   +2 more sources

On the Multiplicity of Algebraic Limit Cycles

Journal of Dynamics and Differential Equations, 2012
The present paper is devoted to the problem of determining the multiplicity of the unit circle as a periodic orbit of the planar differential system \[ \dot{x}=-y+f(x, y)a(x, y), \;\dot{y}=x+f(x, y)b(x, y), \] where \(f(x, y)=x^2+y^2-1\) and \(a\), \(b\) are real polynomials of the variables \(x\) and \(y\).
García, Belén   +3 more
openaire   +1 more source

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