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pro vyhledávání: '"Blixt A"'
Autor:
Tomonari, Kyosuke, Blixt, Daniel
We investigate the degrees of freedom of new general relativity. This theory is a three-parameter theory and is classified into nine irreducible types according to the rotation symmetry of $SO(3)$ on each leaf of ADM-foliation. In this work, we focus
Externí odkaz:
http://arxiv.org/abs/2410.15056
Publikováno v:
Symmetry 2024
In this work, we revise the concept of foliation and related aspects that are crucial when formulating the Hamiltonian evolution for various theories beyond General Relativity. In particular, we show the relation between the kinematic characteristics
Externí odkaz:
http://arxiv.org/abs/2408.16513
We study the degrees of freedom in New General Relativity -- flat and metric compatible family of theories -- around the Minkowski background in a gauge invariant manner. First, we confirm the decoupling case, in which the theory reduces to linearize
Externí odkaz:
http://arxiv.org/abs/2404.02972
Autor:
Bajardi, Francesco, Blixt, Daniel
The primary constraints for general teleparallel quadratic gravity are presented. They provide a basic classification of teleparallel theories from the perspective of the full nonlinear theory and represent the first step towards a full-fledged Hamil
Externí odkaz:
http://arxiv.org/abs/2401.11591
The Gauss-Bonnet topological scalar is presented in metric-teleparallel formalism as well as in the symmetric and general teleparallel formulations. In all of the aforementioned frameworks, the full expressions are provided explicitly in terms of tor
Externí odkaz:
http://arxiv.org/abs/2308.03632
Publikováno v:
Physical Review D 109 (2024) 044061
We present the geometric foundations and derivations of equations of motion for symmetric teleparallel theories of gravity in the coincident gauge and covariant frameworks. We discuss the theoretical challenges introduced by the auxiliary fields resp
Externí odkaz:
http://arxiv.org/abs/2306.09289
Publikováno v:
The European Physical Journal C, 83, 1120 (2023)
We write down the teleparallel equivalent to Hassan-Rosen bigravity, which is written using a torsionful but curvature-free connection. The theories only differ by a boundary term. The equivalence was proven, both by using perturbation theory and Ham
Externí odkaz:
http://arxiv.org/abs/2305.03504
Autor:
Anne-Marie Kanstrup Fiehn, Peter Johan Heiberg Engel, Ulla Engel, Dea Natalie Munch Jepsen, Thomas Blixt, Julie Rasmussen, Signe Wildt, Wojciech Cebula, Andreea-Raluca Diac, Lars Kristian Munck
Publikováno v:
Journal of Pathology Informatics, Vol 15, Iss , Pp 100374- (2024)
Chronic watery diarrhea is a frequent symptom. In approximately 10% of the patients, a diagnosis of microscopic colitis (MC) is established. The diagnosis relies on specific, but sometimes subtle, histopathological findings. As the histology of norma
Externí odkaz:
https://doaj.org/article/8e783877457345e58927c84ae548a4fd
Publikováno v:
Physical Review D 107, 044071 (2023)
We present Hamilton's equations for the teleparallel equivalent of general relativity (TEGR), which is a reformulation of general relativity based on a curvatureless, metric compatible, and torsionful connection. For this, we consider the Hamiltonian
Externí odkaz:
http://arxiv.org/abs/2210.07971
Autor:
Simon Blixt, Fabian Burmeister, Sebastian Mukka, Lukas Bobinski, Peter Försth, Olof Westin, Paul Gerdhem
Publikováno v:
BMC Musculoskeletal Disorders, Vol 25, Iss 1, Pp 1-9 (2024)
Abstract Background The Swedish Fracture Register (SFR) is a national quality register for all types of fractures in Sweden. Spine fractures have been included since 2015 and are classified using a modified AOSpine classification. The aim of this stu
Externí odkaz:
https://doaj.org/article/6afc5768b5d147328479f6391c0efe36