Results 21 to 30 of about 5,588,991 (291)

Stationary Mach Configurations with Pulsed Energy Release on the Normal Shock

open access: yesFluids, 2021
We obtained a theoretical analysis of stationary Mach configurations of shock waves with a pulsed energy release at the main (normal) shock and a corresponding change in gas thermodynamic properties.
Mikhail V. Chernyshov   +3 more
doaj   +1 more source

ASYMMETRICAL INTERFERENCE OF COUNTER OBLIQUE SHOCK WAVES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Study. The paper deals with data on the interference of shock waves with different intensity and slope angles to the flow of them. This problem is related to the problem of designing air intakes to the internal compression and detonation ...
P. V. Bulat   +2 more
doaj   +1 more source

On von Neumann regularity of cellular automata

open access: yesNatural Computing, 2023
AbstractWe show that a cellular automaton on a one-dimensional two-sided mixing subshift of finite type is a von Neumann regular element in the semigroup of cellular automata if and only if it is split epic onto its image in the category of sofic shifts and block maps.
openaire   +3 more sources

Regularizing divergences in the von Neumann entropy

open access: yesJournal of Mathematical Physics, 2002
We study the decoherence process of a harmonic oscillator in a dissipative environment by considering the von Neumann entropy. Derivatives of the von Neumann entropy around the initial time exhibit divergences when the system is initially in a pure state.
Retamal, JC, Vergara, L
openaire   +3 more sources

A Spintronic 2M/7T Computation-in-Memory Cell

open access: yesJournal of Low Power Electronics and Applications, 2022
Computing data-intensive applications on the von Neumann architecture lead to significant performance and energy overheads. The concept of computation in memory (CiM) addresses the bottleneck of von Neumann machines by reducing the data movement in the ...
Atousa Jafari   +2 more
doaj   +1 more source

A Generalization of Von Neumann Regular Rings [PDF]

open access: yes, 2009
In this paper, we introduce a new ring which is a generalization of Von Neumann  regular rings and we call it a centrally regular ring. Several properties of this ring are proved and we have extended many properties of regular rings to centrally regular ...
Adil Jabbar
core   +1 more source

Higher Braid Groups and Regular Semigroups from Polyadic-Binary Correspondence

open access: yesMathematics, 2021
In this note, we first consider a ternary matrix group related to the von Neumann regular semigroups and to the Artin braid group (in an algebraic way).
Steven Duplij
doaj   +1 more source

Von Neumann Regular Cellular Automata [PDF]

open access: yes, 2017
For any group $G$ and any set $A$, a cellular automaton (CA) is a transformation of the configuration space $A^G$ defined via a finite memory set and a local function. Let $\text{CA}(G;A)$ be the monoid of all CA over $A^G$. In this paper, we investigate a generalisation of the inverse of a CA from the semigroup-theoretic perspective. An element $τ\in \
Alonso Castillo-Ramirez   +1 more
openaire   +3 more sources

On n-flat modules and n-Von Neumann regular rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We show that each R-module is n-flat (resp., weakly n-flat) if and only if R is an (n,n−1)-ring (resp., a weakly (n,n−1)-ring). We also give a new characterization of n-Von Neumann regular rings and a characterization of weak n-Von Neumann regular rings ...
Najib Mahdou
doaj   +1 more source

Von Neumann Regular Semiring

open access: yesJournal of Physics: Conference Series, 2020
AbstractThe aim of this action is a study and investigate “Von Neumann regular” semirings, some related concepts, e.g. reduced semirings; duo semiring, quasi-duo, and weakly duo semirings; regular, weakly regular and strongly regular semirings, also investigated. Some known results related to those concepts in rings were converted to semirings. Another
Alaa Hussein Ali   +1 more
openaire   +1 more source

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