Results 181 to 190 of about 7,222 (223)

Theory of flavors: String compactification [PDF]

open access: yesPhysical Review D, 2018
We present a calculating method for the quark and lepton mixing angles. After a general discussion in field theoretic models, we present a working model from a string compactification through Z12-I orbifold compactification.
Jhin E Kim, Jihn E. Kim
exaly   +2 more sources

Products of Compactifications

Acta Mathematica Hungarica, 2002
Let \(X\) be a completely regular (Hausdorff) topological space and \(b_1X\), \(b_2X\) two compactifications of \(X\). The natural inclusions \(i_k\:X \to b_kX\), \(k = 1,2\) define a new inclusion \(i\:X \to b_1X \times b_2X\) by \(i(x) = (i_1(x), i_2(x))\) for \(x\in X\). The closure of \(i(X)\) in \(b_1X \times b_2X\) is some new compactification \((
Aslim, G, Ozbakir, OB, Skljarenko, EG
openaire   +3 more sources

On G-Compactifications

Mathematical Notes, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kozlov, K. L., Chatyrko, V. A.
openaire   +1 more source

Compactification Of L(Q)

Synthese, 2000
For any monadic quantifier \(Q\), the authors consider the fragment \(L_\tau(Q)\) of the logic \(L(Q)\) where \(\tau\) is a finite relational type. Building on \textit{X. Caicedo's} paper ``Continuous operations on spaces of structures'' [in: M. Krynicki et al. (eds.), Quantifiers: logics, models and computation, Vol.
Antonio Mario Sette   +1 more
openaire   +1 more source

Compactification of Frames

Mathematische Nachrichten, 1990
The author surveys the theory of (regular) compactifications of locales, stressing the aspect of locale theory as the constructive (choice-free) counterpart of topology. The main ``new'' result (actually the localic translation of a result established for spaces by the same author over twenty years ago) is that compactifications of a given locale L ...
openaire   +2 more sources

On the Compactification of Products

Canadian Mathematical Bulletin, 1971
Let {Xa, a ∊ A} be a family of completely regular Hausdorff spaces, {βXa} the corresponding family of their Stone-Čech compactifications and ΠaXathe usual topological product. The following theorem was proved by Glicksberg [2] and subsequently by Frolík [1].
openaire   +2 more sources

Flows and Compactifications

Journal of the London Mathematical Society, 1992
Some of the basic relationships between \(S\)-flows and monoidal compactifications of the topological semigroup \(S\) are established and then this machinery is used for the study of flows. It is shown that many standard types of \(S\)-flows (such as proximal, distal or aperiodic) can be characterized by natural restrictions on the minimal ideal of the
openaire   +1 more source

Compactification and Closure

Quaestiones Mathematicae, 2000
Click on the link to view the abstract.Keywords: Closure operator; compactification; completion; factorisation structure; reflectionQuaestiones Mathematicae 23(2000), 529 ...
openaire   +2 more sources

Ideal Completions and Compactifications

Applied Categorical Structures, 2001
The author establishes several concrete isomorphisms between certain categories of (a) ordered sets, (b) quasi-uniform spaces, and (c) topological spaces. These isomorphisms enable him to unveil interesting connections between various types of ideal completions.
openaire   +2 more sources

Singular compactifications and compactification lattices

1990
The aim of this paper is to study the set LSK(X) of the compactifications of X which can be obtained as a supremum of singular compactifications. We prove that a compactification aX of X belongs to LSK(X) if and only if aX is the supremum of the set SC_a of the singular compactifications induced by the maps from X to a compact subspace of R which ...
CATERINO, Alessandro   +1 more
openaire   +1 more source

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