The 4th Conference of the Polish Society on Relativity

Session

Plenary Session 2

25 Sept 2017, 11:10

Kazimierz Dolny, Poland

88. Dark Energy & Modified Gravity in Higher-Order Scalar-Tensor theories

David Langlois (CNRS-Universite Paris Diderot)

25/09/2017, 11:10

Oral presentation (preferred)

83. Surprising properties of geometric Dirac observables in General Relativity

Jerzy Lewandowski (University of Warsaw, Poland)

25/09/2017, 11:55

Oral presentation (preferred)

Coordinates adapted to metric tensor are common tool in many areas of General Relativity. From the point of view of canonical framework they provide Dirac observables invariant with respect (ideally) to all or (practically) to most of diffeomorphisms. Recently, in that context the coordinates defined by geodesics emanating from observer were studied. In the case of the space like geodesics...

54. Quantum dynamics of general Bianchi IX model

Włodzimierz Piechocki

25/09/2017, 12:15

Oral presentation (preferred)

The dynamics of the general (non-diagonal) Bianchi IX model, near the gravitational singularity, underlies the BKL scenario. Asymptotically, the solutions to this dynamics include some special structures named wiggles, which correspond to the oscillatory evolution of the BKL scenario. We propose the formalism, based on the affine quantization scheme, to examine the fate of the wiggles at...

81. Quantum gravity and noncommutative space-times

Jerzy Lukierski (University of Wrocław)

25/09/2017, 12:35

Oral presentation (preferred)

TBA