Zeros of eigenfunctions of some anharmonic oscillators

Alexandre Eremenko; Andrei Gabrielov; Boris Shapiro

Displaying similar documents to “Zeros of eigenfunctions of some anharmonic oscillators”

Andreev’s Theorem on hyperbolic polyhedra

Roland K.W. Roeder, John H. Hubbard, William D. Dunbar (2007)

Annales de l’institut Fourier

Similarity:

In 1970, E.M.Andreev published a classification of all three-dimensional compact hyperbolic polyhedra (other than tetrahedra) having non-obtuse dihedral angles. Given a combinatorial description of a polyhedron, $C$ , Andreev’s Theorem provides five classes of linear inequalities, depending on $C$ , for the dihedral angles, which are necessary and sufficient conditions for the existence of a hyperbolic polyhedron realizing $C$ with the assigned dihedral angles. Andreev’s Theorem also shows that...

Planar maps as labeled mobiles.

Bouttier, J., Di Francesco, P., Guitter, E. (2004)

The Electronic Journal of Combinatorics [electronic only]

Similarity:

On the cutting edge: simplified $O (n)$ planarity by edge addition.

Boyer, John M., Myrvold, Wendy J. (2004)

Journal of Graph Algorithms and Applications

Similarity:

On the Vertex Separation of Maximal Outerplanar Graphs

Markov, Minko (2008)

Serdica Journal of Computing

Similarity:

We investigate the NP-complete problem Vertex Separation (VS) on Maximal Outerplanar Graphs (mops). We formulate and prove a “main theorem for mops”, a necessary and sufficient condition for the vertex separation of a mop being k. The main theorem reduces the vertex separation of mops to a special kind of stretchability, one that we call affixability, of submops.