Results 51 to 60 of about 15,120 (245)
Critical behavior in spherical and hyperbolic spaces [PDF]
, 2014 We study the effects of curved background geometries on the critical behavior of scalar field theory. In particular we concentrate on two maximally symmetric spaces: $d$-dimensional spheres and hyperboloids.
Benedetti, Dario
core +1 more source
Total‐reflection‐based microscope compatible with X‐ray and visible light for sample positioning
Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 604-608, May 2026.A total‐reflection‐based microscope compatible with X‐rays and visible light for sample positioning without difficult calibration of the system is introduced.Sample positioning in X‐ray imaging is often technically demanding and involves radiation exposure to the sample.
Kyota Yoshinaga +15 more
wiley +1 more source
Wigner functions for curved spaces I: On hyperboloids
, 2002 We propose a Wigner quasiprobability distribution function for Hamiltonian systems in spaces of constant curvature --in this paper on hyperboloids--, which returns the correct marginals and has the covariance of the Shapiro functions under SO(D,1 ...
Alonso, Miguel Angel +2 more
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DILUTING GRAVITY WITH COMPACT HYPERBOLOIDS [PDF]
COSMO-2000, 2001 I give a brief informal introduction to the idea and tests of large extra dimensions, focusing on the case in which the space-time manifold has a direct product structure. I then describe some attractive implementations in which the internal space comprises a compact hyperbolic manifold.
openaire +2 more sources
Automated Three‐Dimensional Reflection Traveltime Modelling to Extract 3D Dipping Layer Geometries
Geophysical Prospecting, Volume 74, Issue 4, May 2026.ABSTRACT Steep geological structures are critical for improved understanding of tectonic processes and fluid circulation, particularly in crystalline settings. However, accurately determining their geometry at depth remains a challenge for conventional 2D surveys.
Samuel Zappalá +2 more
wiley +1 more source
THE PROCESSING OF HYPERBOLOID SURFACES USING WIRE ELECTRICAL DISCHARGE MACHINING – PRACTICAL ASPECTS
Nonconventional Technologies Review, 2018 The paper presents practical aspects of an original method that can be used for cutting hyperboloid surfaces using wire electrical discharge machining (WEDM). The processing method, which has only been partly revealed by the author in certain relatively
Calin Denes
doaj
Geometry of 2d spacetime and quantization of particle dynamics
, 1998 We analyze classical and quantum dynamics of a particle in 2d spacetimes with constant curvature which are locally isometric but globally different.
George Jorjadze +6 more
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Fortschritte der Physik, Volume 74, Issue 4, April 2026.ABSTRACT In this paper, we continue the development of the Cartan neural networks programme, launched with three previous publications, by focusing on some mathematical foundational aspects that we deem necessary for our next steps forward. The mathematical and conceptual results are diverse and span various mathematical fields, but the inspiring ...
Pietro Fré +4 more
wiley +1 more source
Nonconventional Technologies Review, 2018 The paper presents an original method that can be used for cutting hyperboloid surfaces using wire electrical discharge machining (WEDM). The processing method, which has only been partly revealed by the author in certain relatively low-impact Romanian ...
Calin Denes
doaj
The closure constraint for the hyperbolic tetrahedron as a Bianchi identity
, 2016 The closure constraint is a central piece of the mathematics of loop quantum gravity. It encodes the gauge invariance of the spin network states of quantum geometry and provides them with a geometrical interpretation: each decorated vertex of a spin ...
Charles, Christoph, Livine, Etera R.
core +3 more sources