Abstract By exploiting the convexity of two-particle-irreducible effective action, we describe a procedure for extracting n -point vertex functions. This is developed within context zero-dimensional ‘quantum field theory’ and subsequently extended to higher dimensions. These results extend practicability utility recent, alternative approach functional renormalization group programme (see Alexan...

this article aims at investigating the role of ideological literature–poetry and prose- from the point of view of scholars and the events that occurred in jamal, and saffin wars. the war occurred between the ideological party led by imam ali (pbv) and the successor of allahs messengar, muhammad (pbv) from one side and on the other side were the promise breakers of ghasstin, maregheen and nakese...

Primordial magnetic fields may be created in collisions of expanding bubbles in a first-order cosmological phase transition and later serve as seed fields for galactic magnetic fields. Here I present results from numerical and analytical studies of U(1) bubble collisions done in collaboration with Ed Copeland and Paul Saffin. I also reveal preliminary results from analytical studies of SU(2)×U(...