Tao Qian

activity

20082022

most citedA precise method for visualizing dispersive features in image plots

288 citations · 438 across the 34 of their papers we have counts for

collaborators

Showing 2015Show all

3 papers · 1 filter

math.FA2015★ 2 cited

The $H^{\infty}$ functional calculus based on the $S$ -spectrum for quaternionic operators and for $n$ -tuples of noncommuting operators

D. Alpay, F. Colombo, T. Qian +1

In this paper we extend the $H^{\infty}$ functional calculus to quaternionic operators and to $n$ -tuples of noncommuting operators using the theory of slice hyperholomorphic function…

math.CV2015

Rational Approximation, Hardy Space - Decomposition of Functions in $L_{p}, p < 1$ : Further Results in Relation to Fourier Spectrum Characterization of Hardy Spaces

Guantie Deng, Tao Qian

Subsequent to our recent work on Fourier spectrum characterization of Hardy spaces $H^{p} (R)$ for the index range $1 \leq p \leq \infty,$ in this paper we prove further result…

math.CV2015★ 1 cited

Minimax principle and lower bounds in H $^{2}$ -rational approximation

Laurent Baratchart, Sylvain Chevillard, Tao Qian

We derive some lower bounds in rational approximation of given degree to functions in the Hardy space $H^{2}$ of the disk. We apply these to asymptotic errors rates in approximation…

The H∞ functional calculus based on the S-spectrum for quaternionic operators and for n-tuples of noncommuting operators

Rational Approximation, Hardy Space - Decomposition of Functions in Lp​,p<1: Further Results in Relation to Fourier Spectrum Characterization of Hardy Spaces

Minimax principle and lower bounds in H2-rational approximation

The $H^{\infty}$ functional calculus based on the $S$ -spectrum for quaternionic operators and for $n$ -tuples of noncommuting operators

Rational Approximation, Hardy Space - Decomposition of Functions in $L_{p}, p < 1$ : Further Results in Relation to Fourier Spectrum Characterization of Hardy Spaces

Minimax principle and lower bounds in H $^{2}$ -rational approximation