2 papers
math-ph2026
On the Spectrum of Some Temperley-Lieb Spin Chains
Robert Ferydouni, Bruno Nachtergaele
We review mathematical results about the spectrum of spin- chains with a nearest neighbor interaction given by the projection onto the singlet state of two spin- degrees of f…
math-ph2025
Foundations of Double Operator Integrals with a Variant Approach to the Nonseparable Case
Robert Ferydouni, Daniel D. Spiegel
We aim to give a self-contained and detailed yet simplified account of the foundations of the theory of double operator integrals, in order to provide an accessible entry point to…