X-Nico

unusual facts about linear combination



Geroch group

It is generated by two non-commuting subgroups: the Matzner–Misner group (after Richard Alfred Matzner and Charles W. Misner) of linear combinations (with constant coefficients) of the two Killing vector fields associated with the spacetime's axisymmetry and stationarity, and the Ehlers group.


see also

Hyperplane

Affine hyperplanes are used to define decision boundaries in many machine learning algorithms such as linear-combination (oblique) decision trees, and Perceptrons.

Vibrations of a circular membrane

Going back to the equation for R(r), its solution is a linear combination of Bessel functions J m and Y m.

Turning to the equation for R(r), with the observation that K=-\lambda^2, all solutions of this second-order differential equation are a linear combination of Bessel functions of order 0,