An Exceptional Collection For Khovanov Homology

The Temperley-Lieb algebra is a fundamental component of SU(2) topological quantum field theories. We construct chain complexes corresponding to minimal idempotents in the Temperley-Lieb algebra. Our results apply to the framework which determines Khovanov homology. Consequences of our work include semi-orthogonal decompositions of categorifications of Temperley-Lieb algebras and Postnikov decompositions of all Khovanov tangle invariants

Foreword: Urban Bioethics

On February 26, 1997, the Fordham University School of Law hosted the Sixth Annual Stein Center Symposium on Contemporary Urban Challenges, entitled Urban Bioethics: A Symposium on Health Care, Poverty, and Autonomy. The Foreword introduces Articles in this Symposium issue and discusses two central themes of the various Articles: socioeconomic framing of bioethical and healthcare issues, and the challenge of the moral consensus