Non-linear PPP in South Asia and China

This study tests the purchasing power parity hypothesis for four South Asian economies and China by employing a recent nonlinear test of stationarity. Besides testing the CPI based PPP, we have also used PPI based real exchange rate in the analysis. The results indicate that nonlinear tests are more successful in validating PPP

Appendicocecal Fistula – A Rare Complication of Appendicitis

Fistulisation of appendix to other organs or to the exterior through abdominal wall is a rare complication of appendicitis. We present one such rare case of appendicocecal fistula due to appendicitis in a patient initially managed conservatively for appendicular lum

Symmetries in elementary particles

Imperial Users onl

Relative n-isoclinism classes and relative n-th nilpotency degree of finite groups

The purpose of the present paper is to consider the notion of isoclinism between two finite groups and its generalization to n-isoclinism, introduced by J. C. Bioch in 1976. A weaker form of n-isoclinism, called relative n-isoclinism, will be discussed. This will allow us to improve some classical results in literature. We will point out the connections between a relative n-isoclinism and the notions of commutativity degree, n-th nilpotency degree and relative n-th nilpotency degree, which arouse interest in the classification of groups of prime power order in the last years.Comment: 11 pages, to appear in Filomat with revision