24 citations · 55 across the 18 of their papers we have counts for
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math.SP2010
A Note on EVgrafov-Fedoryuk's theory and quadratic differentials
Boris Shapiro
The purpose of this short paper is to recall the theory of the (homogenized) spectral problem for a Schroedinger equation with a polynomial potential developed in the 60's by M. Ev…
math.CA2010★ 2 cited
Multiplier sequences and logarithmic mesh
Olga Katkova, Boris Shapiro, Anna Vishnyakova
In this note we prove a new result about (finite) multiplier sequences, i.e. linear operators acting diagonally in the standard monomial basis of R[x] and sending polynomials with…