Results 1 to 10 of about 54 (38)
Artikeln presenterar resultatet från en enkät och intervjustudie med 27 finalister från en nationell matematiktävling för gymnasieelever. En utgångspunkt för studien är att matematisk förmåga inte är statisk utan i hög grad förändringsbar och att utveckling sker genom matematisk aktivitet.
Verner Gerholm
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Matematisk begåvning och läroboken : En analys av läromedel för gymnasiet
Läromedlet spelar en stor roll i matematikundervisningen i den svenska skolan. På grund av att de har en sådan betydande roll för elevernas möjlighet att träna och befästa deras matematiska kunskaper och förmågor finns det höga krav på att läromedlet ska kunna tillgodose alla elevers behov i klassrummet.
Kristin Andersson
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Toda Fields on Riemann Surfaces: remarks on the Miura transformation [PDF]
We point out that the Miura transformation is related to a holomorphic foliation in a relative flag manifold over a Riemann Surface. Certain differential operators corresponding to a free field description of $W$--algebras are thus interpreted as partial connections associated to the foliation.
arxiv +1 more source
Entangled photons from composite cascade emitters [PDF]
Entangled photons are crucial for quantum technologies, but generating arbitrary entangled photon states deterministically, efficiently, and with high fidelity remains a challenge. Here, we demonstrate how hybridization and dipole-dipole interactions -- potentially simultaneously available in colloidal quantum dots and molecular aggregates -- leveraged
arxiv +1 more source
A Supersymmetry Approach to Billiards with Randomly Distributed Scatterers II: Correlations [PDF]
In a previous contribution (H.J. Stoeckmann, J. Phys. A35, 5165 (2002)), the density of states was calculated for a billiard with randomly distributed delta-like scatterers, doubly averaged over the positions of the impurities and the billiard shape. This result is now extended to the k-point correlation function.
arxiv +1 more source
Displacement of the Sun from the Galactic Plane [PDF]
We have carried out a comparative statistical study for the displacement of the Sun from the Galactic plane (z_\odot) following three different methods. The study has been done using a sample of 537 young open clusters (YOCs) with log(Age) < 8.5 lying within a heliocentric distance of 4 kpc and 2030 OB stars observed up to a distance of 1200 pc, all of
arxiv +1 more source
Building Semi-Analytic Black Hole Seeding Models Using IllustrisTNG Host Galaxies [PDF]
Because early black holes (BHs) grew to $\sim10^{9} ~M_\odot$ in less than 1 Gyr of cosmic time, BH seeding models face stringent constraints. To efficiently constrain the parameter space of possible seeding criteria, we combine the advantages of the cosmological IllustrisTNG (TNG) simulations with the flexibility of semi-analytic modeling. We identify
arxiv
Efficiency of Higher Order Finite Elements for the Analysis of Seismic Wave Propagation [PDF]
The analysis of wave propagation problems in linear damped media must take into account both propagation features and attenuation process. To perform accurate numerical investigations by the finite differences or finite element method, one must consider a specific problem known as the numerical dispersion of waves. Numerical dispersion may increase the
arxiv +1 more source
The increasing usage of algorithms and extensive collections of data have changed the discipline of finance and created new possibilities for analyzing the financial markets. To further explore the potential of developing new methods for understanding financial market behaviour, this thesis examines the first digit probability distribution of Benford's
Lindgren, Peter, Ternqvist, Lucas
openaire +1 more source