The canonical quantization of N = 1 and N = 2 supergravity theories is reviewed in this report. A special emphasis is given to the topic of supersymmetric Bianchi class-A and FRW minisuperspaces,â€¦ (More)

The theory of N = 1 supergravity with gauged supermatter is studied in the context of a k = + 1 Friedmann minisuperspace model. It is found by imposing the Lorentz and supersymmetry constraints thatâ€¦ (More)

We present the canonical and quantum cosmological investigation of a spatially flat, four-dimensional Friedmann-Robertson-Walker (FRW) model that is derived from the M-theory effective actionâ€¦ (More)

The canonical quantization of N = 1, 2 supergravity theories is reviewed throughout this report. Special emphasis is consigned to the topic of supersymmetric Bianchi class-A and FRW minisuperspaces,â€¦ (More)

The general theory of N=1 supergravity with supermatter is applied to a Bianchi type IX diagonal model. The supermatter is constituted by a complex scalar eld and its spin-1 2 fermionic partners. Theâ€¦ (More)

We study the dynamics of flat Friedmann-Robertson-Walker (FRW) cosmologies in the presence of a triplet of massive vector fields with SO(3) global symmetry. We find an E 3-symmetric ansatz for theâ€¦ (More)

Bianchi class-A models and Reissner-NordstÂ¨rom (RN) black hole scenarios are considered from the point of view of quantum N=2 Supergravity. It is shown that the presence of Maxwell fields in theâ€¦ (More)

We review five cases of Progressive Multifocal Leukoencephalopathy (PML), confirmed by biopsy in three cases and by LCR JC virus research by PCR (polymerase chain reaction) in two cases. We analysedâ€¦ (More)

A specific Friedmann-Roberstson-Walker (FRW) model derived from the theory of N=1 supergravity with gauged supermatter is considered in this paper. The supermatter content is restricted to a vectorâ€¦ (More)

Abstract We develop a semiclassical approximation scheme for the constraint equations of supersymmetric canonical quantum gravity. This is achieved by a Bornâ€“Oppenheimer type of expansion, in analogyâ€¦ (More)