SrCu2(BO3)2Sr Cu_2 (BO_3)_2: A Unique Mott Hubbard Insulator

We discuss the recently discovered system $Sr Cu_2 (BO_3)_2$, a realization of an exactly solvable model proposed two decades earlier. We propose its interpretation as a Mott Hubbard insulator. The possible superconducting phase arising from doping is explored, and its nature as well as its importance for testing the RVB theory of superconductivity are discussed.Comment: 18 pages,7 figures, Based on Invited Talk at 16th Nishinomiya Yukawa memorial symposium, Nov 13-14, Nishinomiya. To appear in Progress in Theoretical Physics, Suppliment 145(2002

Growth Elasticity of poverty in the globe

This paper highlights the global economic prosperity and portrays the anatomy of poverty in developing countries. It analyses the incidence of rural and urban poverty persisting in fourteen countries including India. It address the contradiction of coexistence of poverty and hyper economic growth in the globe. It is found that the growth elasticity of poverty is very low in developing countries. It argues that economic growth process can be inclusive and sustainable only by curbing the process of marginalization, corruption and exploitationgrowth Elasticity, Poverty ,Asia, Europe

Finiteness of the number of compatibly-split subvarieties

We show that for a Frobenius split variety, there are only finitely many closed subvarieties which are compatibly-split.Comment: 3 page