A seven-generation family with 30 members affected by highly variable autosomal dominant zonular pulverulent cataracts has been previously described. We have localized the cataracts to a 19-cMâ€¦ (More)

Common water ice (ice Ih) is an unusual solidâ€”the oxygen atoms form a periodic structure but the hydrogen atoms are highly disordered due to there being two inequivalent Oâ€“H bond lengths. Paulingâ€¦ (More)

The paper is devoted to the connection between integrability of a finite quantum system and degeneracies of its energy levels. In particular, we analyze in detail the energy spectra of finite Hubbardâ€¦ (More)

Motivated by the recent discovery of superconductivity in two dimensional CoO2 layers, we present some possibly useful results of the RVB mean field theory applied to the triangular lattice. Awayâ€¦ (More)

The Ford-Kac-Mazur formalism is used to study quantum transport in ~1! electronic and~2! harmonic oscillator systems connected to general reservoirs. It is shown that for noninteracting systems theâ€¦ (More)

We investigate a model containing two species of one-dimensional fermions interacting via a gaug field determined by the positions of all particles of the opposite species. The model can be solveâ€¦ (More)

In this article, I discuss W.Kohnâ€™s criterion for a metal insulator transition, within the framework of a one band Hubbard model. This and related ideas are applied to 1-dimensional Hubbard systems,â€¦ (More)

We present the theory of an extremely correlated Fermi liquid with Uâ†’âˆž. This liquid has an underlying auxiliary Fermi liquid Green's function that is further caparisoned by extreme correlations. Theâ€¦ (More)

We present a numerical scheme for the Hubbard model that throws light on the rather esoteric nature of the upper and lower Hubbard bands, which have been invoked often in literature. We present aâ€¦ (More)

We present the exact solution for a set of nonlinear algebraic equations 1 zl = Ï€d + 2d n âˆ‘ m6=l 1 zlâˆ’zm . These were encountered by us in a recent study of the low energy spectrum of the Heisenbergâ€¦ (More)