# GEM - International Journal on Geomathematics

GEM - International Journal on Geomathematics > 2010 > 1 > 1 > 121-131

GEM - International Journal on Geomathematics > 2010 > 1 > 1 > 5-21

GEM - International Journal on Geomathematics > 2010 > 1 > 1 > 101-120

^{2}in $${\mathbb{R}^3}$$ and a regularised scalar and vector potential of a vector field on a bounded domain in $${\mathbb{R}^3}$$ . We prove that the regularised Green’s function for −∇

^{2}converges to the actual Green’s function. We also show that the regularised parts of the Helmholtz decomposition converge to the actual decomposition...

GEM - International Journal on Geomathematics > 2010 > 1 > 1 > 23-50

GEM - International Journal on Geomathematics > 2010 > 1 > 1 > 51-100

GEM - International Journal on Geomathematics > 2011 > 1 > 2 > 257-276

GEM - International Journal on Geomathematics > 2011 > 1 > 2 > 167-204

GEM - International Journal on Geomathematics > 2011 > 1 > 2 > 133-143

GEM - International Journal on Geomathematics > 2011 > 1 > 2 > 145-166

GEM - International Journal on Geomathematics > 2011 > 1 > 2 > 205-256

GEM - International Journal on Geomathematics > 2011 > 2 > 1 > 69-85

*N*points by orthogonal, compactly supported wavelets on the surface of a 2-sphere or a local subset of it. In fact, the sphere is not treated all at once, but is split into subdomains whose results are combined afterwards. After choosing the center of the area...

GEM - International Journal on Geomathematics > 2011 > 2 > 1 > 1-36

GEM - International Journal on Geomathematics > 2011 > 2 > 1 > 37-68

GEM - International Journal on Geomathematics > 2011 > 2 > 1 > 113-122

*SO*(3) consisting of four charts where each chart is defined by Euler angles or each chart is defined by Cardan angles. This is best possible since it is well known that three charts do not suffice.

GEM - International Journal on Geomathematics > 2011 > 2 > 1 > 87-112

*l*

_{1}minimization model based on primal-dual interior point methods is presented and used for...

GEM - International Journal on Geomathematics > 2011 > 2 > 2 > 177-218

GEM - International Journal on Geomathematics > 2011 > 2 > 2 > 147-173

GEM - International Journal on Geomathematics > 2011 > 2 > 2 > 307-323

*any*Rayleigh number while

*steady*convective motions are observed only for small ones (but any Prandtl number and gap width). We provide estimates for the relative error of two popular approximations to the full Navier–Stokes–Fourier equations. For this we propose...

GEM - International Journal on Geomathematics > 2011 > 2 > 2 > 219-253