Novel Bounds for p-Numerical Radii of Operator Products in Hilbert Space Theory
摘要
This research presents innovative sharp inequalities for p-numerical radii of Hilbert space operators, with special focus on operator products, powers, and block structures. We establish improved upper and lower bounds that significantly enhance the established classical inequalities. By applying a unique approach combining Schatten p-norm techniques with our newly developed block operator methodology, we achieve demonstrably tighter bounds - enhancing operator norm estimates by up to 33% and Hilbert-Schmidt norm estimates by up to 29%. Complete mathematical proofs accompany all findings, and comprehensive testing through numerical simulations confirms the bounds’ sharpness across various operator dimensions. A key contribution of our block operator approach is its ability to handle complex operator structures systematically, yielding inequalities with better constants and broader applications. These results advance both theoretical operator studies and practical applications in quantum information theory and signal processing, fields requiring precise operator behavior characterization.