Extensions of an inequality of Bonnesen to D-dimensional space and curvature conditions for convex bodies.
The ground-state energy and properties of any many-electron atom or molecule may be rigorously computed by variationally computing the two-electron reduced density matrix rather than the many-electron wavefunction. While early attempts fifty years ago to compute the ground-state 2-RDM directly were stymied because the 2-RDM must be constrained to represent an N-electron wavefunction, recent advances in theory and optimization have made direct computation of the 2-RDM possible. The constraints in...
Die diskrete Ungleichung von W. Wirtinger wird aus den Eigenschaften der auf den mehrdimensionalen Raumen liegenden Polygone gefolgert.