Osborn equation and irrelevant operators

Riding on irrelevant operators

We investigate the stability of a class of derivative theories known as P (X) and Galileons against corrections generated by quantum effects. We use an exact renormalisation group approach to argue that these theories are stable under quantum corrections at all loops in regions where the kinetic term is large compared to the strong coupling scale. This is the regime of interest for screening or...

A Renormalization Group Flow Approach to Decoupling and Irrelevant Operators

Using Wilson-Polchinski renormalization group equations, we give a simple new proof of decoupling in a φ-type scalar field theory involving two real scalar fields (one is heavy with mass M and the other light). Then, to all orders in perturbation theory, it is shown that effects of virtual heavy particles up to the order 1/M0 can be systematically incorporated into light-particle theory via eff...

Osborn waves of hypothermia.

Ignoring Irrelevant Facts and Operators in Plan Generation

It is traditional wisdom that one should start from the goals when generating a plan in order to focus the plan generation process on potentially relevant actions. The graphplan system, however, which is the most eecient planning system nowadays, builds a \planning graph" in a forward-chaining manner. Although this strategy seems to work well, it may possibly lead to problems if the planning ta...

Osborn waves.

*Registrar, **Assistant Professor, ***Professor, ****Post Graduate Student, Department of Medicine, Dr Rajendra Prasad Govt. Medical College, Tanda Kangra 176001, Himachal Pradesh Received: 04.04.2012; Accepted: 12.07.2012 F two year old male presented with history of fever, cough for one month and altered sensorium for one day. At admission patient was confused with Glasgow coma scale(GCS) of ...