A Preconditioned Iteration Method for Solving Sylvester Equations

<table>Comparison of convergence curves using GBI and PGBI (a); the influence of parameter <svg height="7.0124998" id="M159" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 9.4125004 7.0124998" width="9.4125004" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝜅</tspan>
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Journal of Applied Mathematics

A Preconditioned Iteration Method for Solving Sylvester Equations

Figure 4