Now showing items 1-10 of 105
Online mathematics teacher education
(Pme 33: Proceedings of The 33rd Conference of The International Group For The Psychology of Mathematics Education, Vol 1, 2009-01-01) [Artigo]
Chasing traces of the mathematical preparation on the professional practice of a mathematics teacher
(Pme 34 Brazil: Proceedings of The 34th Conference of The International Group For The Psychology of Mathematics Education, Vol 2, 2010-01-01) [Artigo]
Can Drag Force Suppress Fermi Acceleration in a Bouncer Model?
(Mathematical Problems in Engineering, 2009-01-01) [Artigo]
Some dynamical properties for a bouncer model-a classical particle of mass m falling in the presence of a constant gravitational field g and hitting elastically a periodically moving wall-in the presence of drag force that ...
Multimedia selection: Allowing educators to act critically and independently
(IADIS International Conference on Cognition and Exploratory Learning in Digital Age, CELDA 2011, 2011-12-01) [Trabalho apresentado em evento]
In Brazil, important portals like the Portal do Professor, or Teacher's Portal, from the Ministry of Education, offer multimedia products like audios, videos, games, animations, simulations and others with an accompanying ...
Vibrations of a non-ideal parametrically and self-excited model
(Journal of Sound and Vibration, 2001-08-09) [Carta]
Commutative group codes in R4, R6, R8 and R16-Approaching the bound
(Discrete Mathematics, 2013-05-10) [Artigo]
Spherical codes in even dimensions n = 2m generated by a commutative group of orthogonal matrices can be determined by a quotient of m-dimensional lattices when the sublattice has an orthogonal basis. We discuss here the ...
Difference equations with delays depending on time
(Boletim da Sociedade Brasileira de Matemática, 1990-03-01) [Artigo]
For linear difference equations with coefficients and delays varying in time, sufficient conditions are given, in the scalar case, the zero solution to be stable. © 1990 Sociedade Brasileira de Matemática.
Working session: online mathematics teacher education
(Pme 34 Brazil: Proceedings of The 34th Conference of The International Group For The Psychology of Mathematics Education, Vol 1, 2010-01-01) [Resumo]
Coincidences of self-maps on Klein bottle fiber bundles over the circle
(JP Journal of Geometry and Topology, 2012-03-01) [Artigo]
The main purpose of this work is to study coincidences of fiber-preserving self-maps over the circle S 1 for spaces which are fiberbundles over S 1 and the fiber is the Klein bottle K. We classify pairs of self-maps over ...
Stability results for impulsive functional differential equations with infinite delay
(Nonlinear Analysis-theory Methods & Applications, 2012-12-01) [Artigo]
For a family of differential equations with infinitive delay and impulses, we establish conditions for the existence of global solutions and for the global asymptotic and global exponential stabilities of an equilibrium ...