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math.FA2016★ 5 cited
Lattices from tight equiangular frames
Albrecht Boettcher, Lenny Fukshansky, Stephan Ramon Garcia +2
We consider the set of all linear combinations with integer coefficients of the vectors of a unit tight equiangular frame and are interested in the question whether this se…
math.FA2014
Toeplitz determinants with perturbations in the corners
Albrecht Boettcher, Lenny Fukshansky, Stephan Ramon Garcia +1
The paper is devoted to exact and asymptotic formulas for the determinants of Toeplitz matrices with perturbations by blocks of fixed size in the four corners. If the norms of the…