126 citations · 447 across the 20 of their papers we have counts for
3 papers · 1 filter
Time and Band Limiting for Matrix Valued Functions, an Example
F. Alberto Grünbaum, Inés Pacharoni, Ignacio Nahuel Zurrián
The main purpose of this paper is to extend to a situation involving matrix valued orthogonal polynomials and spherical functions, a result that traces its origin and its importanc…
A quantum dynamical approach to matrix Khrushchev's formulas
C. Cedzich, F. A. Grünbaum, L. Velázquez +2
Khrushchev's formula is the cornerstone of the so called Khrushchev theory, a body of results which has revolutionized the theory of orthogonal polynomials on the unit circle. This…
A limit theorem for a 3-period time-dependent quantum walk
F. Alberto Grünbaum, Takuya Machida
We consider a discrete-time 2-state quantum walk on the line. The state of the quantum walker evolves according to a rule which is determined by a coin-flip operator and a position…