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Perfect state transfer, integral circulants and join of graphs
(2009-09-04)
We propose new families of graphs which exhibit quantum perfect state transfer. Our constructions are based on the join operator on graphs, its circulant generalizations, and
the Cartesian product of graphs. We build upon ...
On quantum perfect state transfer in weighted join graphs
(2009-09-02)
We study perfect state transfer on quantum networks represented by weighted graphs. Our focus is on graphs constructed from the join and related graph operators
CONTINUOUS AND DISCRETE FLOWS ON OPERATOR ALGEBRAS
(2009)
Let (N, R, ) be a centrally ergodic W* dynamical system. When N is not a factor, we show that, for each t 6= 0, the crossed product induced by the time t automorphism t is not a factor if and only if there exist a rational ...
TEACHERS' CONSTRUCTION OF DYNAMIC MATHEMATICAL MODELS BASED ON THE USE OF COMPUTATIONAL TOOLS
(2009)
To what extent does the use of computational tools offer teachers the possibility of constructing dynamic models to identify and explore diverse mathematical relations? What ways of reasoning or thinking about the problems ...
Números irracionales
(2009-07)
The aim of this lecture is to provide alternative methods to show that √2 is irrational as well as to establish connections with several concepts related with Pell's equation.
Growth of Algebras
(2009-07)
Let A be an F-algebra. We say that A is nitely generated
provided there is fa1; a2; ; ar g A such that every element of A
can be written as a nite linear combination of monomials in
a1; a2; : : : ; ar
. V ...
La cuadratura de la parabola: Un parabola: Un problema en el contexto matemático
(2009)
¿Que tipo de tareas deben usar los profesores si ´
quieren que los estudiantes construyan
entendimiento matemático importante? . . . , los ´
estudiantes construyen entendimiento matemático reflexionando y comunicando, ...
Uso de las tecnologías en el aprendizaje de la matemática.Cálculo de áreas
(2009-01)
The objective of this lecture is to provide some examples that can help teachers to identify characteristics of the learning tasks within the framework of problem solving.