An alternative singularity-free cosmological scenario from cusp geometries [PDF]
AIP Conference Proceedings, 2012 We study an alternative geometrical approach on the problem of classical cosmological singularity. It is based on a generalized function $f (x, y) = x^{2} + y^{2} = (1 - z)z^{n}$ which consists of a cusped coupled isosurface.
Reinaldo R. Rosa, Diego H Stalder
exaly +4 more sources
Higher-order singularities in phase-tracked electromechanical oscillators [PDF]
Nature Communications, 2023 Singularities ubiquitously exist in different fields and play a pivotal role in probing the fundamental laws of physics and developing highly sensitive sensors.
Xin Zhou +10 more
doaj +2 more sources
Heterogeneous-elasticity theory of instantaneous normal modes in liquids [PDF]
Scientific Reports, 2023 Since decades, the concept of vibrational density of states in glasses has been mirrored in liquids by the instantaneous-normal-mode spectrum. In glasses instantaneous configurations are believed to be situated close to minima of the potential-energy ...
Stefano Mossa +3 more
doaj +2 more sources
Magnetization cusp singularities of frustrated Kondo necklace model [PDF]
, 2003 Magnetization processes of frustrated Kondo necklace model are studied by means of a density matrix renormalization group (DMRG) method and an elementary band theory based on a bond-operator formalism.
Chen Y. +30 more
core +2 more sources
Accurate Thermodynamic Properties of Ideal Bosons in a Highly Anisotropic 2D Harmonic Potential [PDF]
Entropy, 2023 One can derive an analytic result for the issue of Bose–Einstein condensation (BEC) in anisotropic 2D harmonic traps. We find that the number of uncondensed bosons is represented by an analytic function, which includes a series expansion of q-digamma ...
Ze Cheng
doaj +2 more sources
Nonlinear Economic State Equilibria via van der Waals Modeling [PDF]
EntropyThe renowned van der Waals (VDW) state equation quantifies the equilibrium relationship between the pressure P, volume V, and temperature kBT of a real gas.
Max-Olivier Hongler +2 more
doaj +2 more sources
Change-point detection, segmentation, and related topics [PDF]
ESAIM: Proceedings and Surveys, 2020 Recent contributions to change-point detection, segmentation and inference for non-regular models are presented. Various problems are considered including the multiple change-point estimation with adaptive penalty for time series with different ...
Bardet Jean-Marc +4 more
doaj +1 more source
The λ-Point Map between Two Legendre Plane Curves
Mathematics, 2023 The λ-point map between two Legendre plane curves, which is a map from the plane into the plane, is introduced. The singularity of this map is studied through this paper and many known plane map singularities are realized as special cases of this ...
Azeb Alghanemi, Abeer AlGhawazi
doaj +1 more source
On singular solutions of the stationary Navier-Stokes system in power cusp domains
Mathematical Modelling and Analysis, 2021 The boundary value problem for the steady Navier–Stokes system is considered in a 2D bounded domain with the boundary having a power cusp singularity at the point O. The case of a boundary value with a nonzero flow rate is studied.
Konstantinas Pileckas, Alicija Raciene
doaj +1 more source
Super-spinning Kerr attractors: Observational signatures of accretion tori and proto-jets
Nuclear Physics B, 2023 We study accretion tori and proto-jets in the field of central Kerr super-spinning attractors, exposing distinctions between Kerr naked singularities (NSs) and black holes (BHs).
D. Pugliese, Z. Stuchlík
doaj +1 more source