Results 61 to 70 of about 2,749,823 (130)

On projective spaces over local fields

open access: yes, 2023
Let $\mathcal{P}$ be the set of points of a finite-dimensional projective space over a local field $F$, endowed with the topology $\tau$ naturally induced from the canonical topology of $F$. Intuitively, continuous incidence abelian group structures on $\
Cangiotti, Nicolò, Linzi, Alessandro
core  

On the Secondary Control Architectures of AC Microgrids: An Overview

open access: yesIEEE transactions on power electronics, 2020
Communication infrastructure (CI) in microgrids (MGs) allows for the application of different control architectures for the secondary control (SC) layer.
Yousef Khayat   +10 more
semanticscholar   +1 more source

ON COMMUTATIVE HYPER BE-ALGEBRAS [PDF]

open access: yes, 2015
In this paper, we introduce commutative hyperBE-algebra and study it in detail. We show that every commutative (row diagonal, column row, very thin) hyper BE-algebra is a BE-algebra. 
Borumand Saeid, Arsham   +2 more
core  

Notes on valuation theory for Krasner hyperfields

open access: yes, 2023
The main aim of this article is to study and develop valuation theory for Krasner hyperfields. In analogy with classical valuation theory for fields, we generalise the formalism of valuation rings to describe equivalence of valuations on hyperfields ...
Linzi, Alessandro
core  

Algebraic and geometric automorphisms of hypergroupoids [PDF]

open access: yes, 1998
Two concepts of automorphism of a hypergroupoid are introduced; the first one preserve the algebraic structure of a hypergroupoid, the second one preserve the geometric structure that one can associate naturally to a hypergroupoid.
Gentile, Giuseppe
core   +2 more sources

Cosmic Acceleration: Past And Present [PDF]

open access: yes, 2011
Our Universe has an exciting history of accelerated expansion. Following its inception in an event known as the big bang, the Universe underwent a phase of exponential expansion called inflation.
Agarwal, Nishant
core  

Secondary Bile Acids and Short Chain Fatty Acids in the Colon: A Focus on Colonic Microbiome, Cell Proliferation, Inflammation, and Cancer

open access: yesInternational Journal of Molecular Sciences, 2019
Secondary bile acids (BAs) and short chain fatty acids (SCFAs), two major types of bacterial metabolites in the colon, cause opposing effects on colonic inflammation at chronically high physiological levels. Primary BAs play critical roles in cholesterol
Huawei Zeng   +4 more
semanticscholar   +1 more source

Categories of hypermagmas, hypergroups, and related hyperstructures

open access: yes, 2023
In order to diagnose the cause of some defects in the category of canonical hypergroups, we investigate several categories of hyperstructures that generalize hypergroups.
Nakamura, So, Reyes, Manuel L.
core  

Secondary building units as the turning point in the development of the reticular chemistry of MOFs

open access: yesScience Advances, 2018
The SBU approach facilitated the development of permanently porous MOFs with unique properties, chemistry, and applications. The secondary building unit (SBU) approach was a turning point in the discovery of permanently porous metal-organic frameworks ...
Markus J. Kalmutzki   +2 more
semanticscholar   +1 more source

Radiochemical measurements on neutron sources [PDF]

open access: yes, 1958
The investigations described in this thesis relate to the development of an accurate method for the comparison of strengths of weak neutron sources with different spectra. This is part of a programme for the establishment of an absolute neutron standard.
Sastri, Malladi Narasimha
core  

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