Results 21 to 30 of about 10,234 (185)

Quantum Lobachevsky planes [PDF]

open access: yesJournal of Mathematical Physics, 1996
We classify all SL(2,R)-covariant Poisson structures on the Lobachevsky plane with respect to all multiplicative Poisson structures on SL(2,R) and describe quantizations for all these Poisson structures.
openaire   +3 more sources

Variability in Resistive Memories

open access: yesAdvanced Intelligent Systems, Volume 5, Issue 6, June 2023., 2023
A comprehensive review of variability in resistive memories is presented. Experimental evidence of variability for resistive memories is described. Later on, different approaches to model this variability from the physical, behavioral, and stochastic viewpoints are presented.
Juan B. Roldán   +19 more
wiley   +1 more source

A Statistical Study of Resistive Switching Parameters in Au/Ta/ZrO2(Y)/Ta2O5/TiN/Ti Memristive Devices

open access: yesphysica status solidi (a), Volume 220, Issue 11, June 2023., 2023
Variability is an inherent property of memristive devices. For each specific structure, the variability should be measured and assessed. In this report, it is shown how this variability can be extracted and analyzed for such main parameters of resistive switching as the set and reset voltages/currents and how it depends on the methodology used and ...
David Maldonado   +5 more
wiley   +1 more source

Geometrias não-euclidianas 2ª parte - Um modelo de geometria hiperbólica

open access: yesVetor, 2007
Neste trabalho apresentamos um modelo de Geometria Hiperbólica e utilizamos também, como na 1ª parte, as geodésicas, para comparar com 0 5º postulado de Euclides.
José Carlos Pinto Leivas
doaj   +4 more sources

Electrokinetic, oxidative and aggregation properties of red blood cells in the postoperative period following kidney transplantation

open access: yesВестник трансплантологии и искусственных органов, 2020
Objective: to study the electrokinetic and aggregation properties, as well as the pro-oxidant and antioxidant processes in red blood cells following kidney transplantation in donors and in recipients in the postoperative period.
A. V. Deryugina   +6 more
doaj   +1 more source

Fractal Information by Means of Harmonic Mappings and Some Physical Implications

open access: yesEntropy, 2016
Considering that the motions of the complex system structural units take place on continuous, but non-differentiable curves, in the frame of the extended scale relativity model (in its Schrödinger-type variant), it is proven that the imaginary part of a ...
Maricel Agop   +6 more
doaj   +1 more source

A necessary flexibility condition of a nondegenerate suspension in Lobachevsky 3-space [PDF]

open access: yes, 2012
We show that some combination of the lengths of all edges of the equator of a flexible suspension in Lobachevsky 3-space is equal to zero (each length is taken either positive or negative in this combination).Comment: 20 pages, 13 ...
A. V. Bitsadze   +9 more
core   +2 more sources

Non-arithmetic groups in lobachevsky spaces [PDF]

open access: yesPublications mathématiques de l'IHÉS, 1987
A result of Margulis says that every lattice in a simple Lie group G with rank\(_{{\mathbb{R}}}G>2\) is arithmetic. Up to local isomorphism it remains to consider the following non-compact groups (groups with rank\(_{{\mathbb{R}}}=1):\) \(O(n,1)\), \(U(n,1)\), and their quaternion and Cayley analogues.
Gromov, M., Piatetski-Shapiro, Ilya I.
openaire   +2 more sources

Barbier's Theorem in the Lobachevski Plane [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
In the Lobachevski plane, horocycles with the same center are geodesic parallels and are natural replacements for the lines used in defining the support function of a convex curve and the notion of constant width in the Euclidean plane. In this paper, analogs based on horocycles are obtained for Christoffel’s formula, which expresses the radius of ...
openaire   +1 more source

THE ROLE AND STRUCTURE OF EDUCATIONAL COMPONENT IN PHD PROGRAMS OF A NEW TYPE

open access: yesВысшее образование в России, 2022
The article presents an analysis of the main trends in the development of doctoral educationin the framework of the Bologna process. Practical experience of modernizing the system for academic staff training in the postgraduate school of Lobachevsky ...
Boris I. Bednyi
doaj  

Home - About - Disclaimer - Privacy