Results 41 to 50 of about 10,234 (185)
Search for new apatite-like phases for lead utilization based on crystal structure and thermal expansion [PDF]
Journal of the Serbian Chemical SocietyApatites, being one of the most numerous mineral-like families of compounds, are considered as a matrix for binding lead ions, which is dangerous for the biosphere.
Bulanov Evgeny N. +4 more
doaj +1 more source
Lobachevsky holography in conformal Chern-Simons gravity
, 2013 We propose Lobachevsky boundary conditions that lead to asymptotically H^2xR solutions. As an example we check their consistency in conformal Chern-Simons gravity.
Bertin, Mario +5 more
core +2 more sources
TTV Species Diversity as a Novel Biomarker of Immune Dysregulation in Aging
Journal of Medical Virology, Volume 97, Issue 11, November 2025.ABSTRACT Torquetenovirus (TTV) is a prevalent virus whose clinical significance remains unclear, potentially linked to immunosenescence. This study examines TTV species in relation to immune impairment, inflammation, and cellular stress response in aging.
Federica Novazzi +35 more
wiley +1 more source
Symmetric monochromatic subsets in colorings of the Lobachevsky plane [PDF]
Discrete Mathematics & Theoretical Computer Science, 2010 Combinatorics
Taras Banakh, Artem Dudko, Dusan Repovs
doaj +1 more source
Minimal surfaces and entanglement entropy in anti-de Sitter space
, 2014 According to Ryu and Takayanagi, the entanglement entropy in conformal field theory (CFT) is related through the AdS/CFT correspondence to the area of a minimal surface in the bulk.
Krtous, Pavel, Zelnikov, Andrei
core +1 more source
Asymptotics of quantum 6j$6j$‐symbols and generalized hyperbolic tetrahedra
Journal of Topology, Volume 18, Issue 3, September 2025.Abstract We establish the geometry behind the quantum 6j$6j$‐symbols under only the admissibility conditions as in the definition of the Turaev–Viro invariants of 3‐manifolds. As a classification, we show that the 6‐tuples in the quantum 6j$6j$‐symbols give in a precise way to the dihedral angles of (1) a spherical tetrahedron, (2) a generalized ...
Giulio Belletti, Tian Yang
wiley +1 more source
Entropy, 2020 With their constantly increasing peak performance and memory capacity, modern supercomputers offer new perspectives on numerical studies of open many-body quantum systems.
Iosif Meyerov +6 more
doaj +1 more source
Did Lobachevsky Have A Model Of His "imaginary Geometry"? [PDF]
, 2010 The invention of non-Euclidean geometries is often seen through the optics of Hilbertian formal axiomatic method developed later in the 19th century. However such an anachronistic approach fails to provide a sound reading of Lobachevsky's geometrical ...
Rodin, Andrei
core +1 more source
An infinitesimally nonrigid polyhedron with nonstationary volume in the Lobachevsky 3-space
, 2011 We give an example of an infinitesimally nonrigid polyhedron in the Lobachevsky 3-space and construct an infinitesimal flex of that polyhedron such that the volume of the polyhedron isn't stationary under the flex.Comment: 10 pages, 2 Postscript ...
A. D. Alexandrov +9 more
core +1 more source
Motion Caused by Magnetic Field in Lobachevsky Space
, 2010 We study motion of a relativistic particle in the 3-dimensional Lobachevsky space in the presence of an external magnetic field which is analogous to a constant uniform magnetic field in the Euclidean space.
Kudryashov, V. V. +3 more
core +1 more source