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1.
We consider here a hilbertian fieldk and its Galois group (k s/k). For a natural numbere we prove that almost all (σ) ∈ (ks/k)e have the following properties. (1) The closedsubgroup 〈σ〉 which is generated by σ1, …, σe is a free pro-finite group withe generators. (2) LetK be a proper subfield of the fixed fieldk s (σ) of 〈σ〉, …, σe ink s, which containsk. Then the group (k s/K) cannot be topologically generated by less thene+1 elements. (3) There does not exist a τ ∈ (k/k), τ≠1, of finite order such that [k s (σ):k s (σ, τ)]<∞. (4) Ife=1, there does not exist a fieldk?K?k s (σ) such that 1<[k s (σ):K]<∞. Here “almost all” is used in the sense of the Haar measure of the compact group (ks/k)e.  相似文献   

2.
Let be a De Possel differentiation basis in a complete measure space , with μ≥0, μ(X)<+∞; letB be a Banach space and . When the F′ exists μ-a.e. onX, we prove that for eachp>0, the μ-integral of‖F′‖ p is the lower-bound of a class ofp-variations.  相似文献   

3.
4.
The convolution is defined as the sum where for n≠0 and W0,W1 are arbitrary smooth functions. Question: how to express these sums in the form of the combinations of the N-th Fourier coefficients of the eigenfunctions of the automorphic Laplacian? The answer is given in terms of the bilinear form of the Hecke series associated with the eigenfunctions of the automorphic Laplacian and with regular cusp forms. The final identity may lead to a new possibility for the solution of the moment problem of the Riemann zeta-function.  相似文献   

5.
It is shown that if is any variety of algebras all of whose congruence lattices are modular, then the congruence lattice of every algebra in satisfies the Arguesian law.  相似文献   

6.
Il contenuto di questo lavoro consiste nel mostrare che le fibrazioni dei near-field regolari di dimensionet+1 sul nucleo , quando , si ottengono da fibrazioni regolari con una operazione di scambio fra alcuni sistemi di matrici, che generalizza il procedimento di sostituzione di regoli con regoli opposti di quadriche rigate nel caso di dimensione due sul nucleo.  相似文献   

7.
Trace series on     
Let K be a number field which contains the absolute Galois group of K. Let be the completion of relative to the spectral norm . A trace series and a trace function are associated to an element . A measure preserving function H:G{inK}→[0,1] is constructed and a Fourier type theory is considered for elements of .  相似文献   

8.
The two parameter eigenvalue problem in Hilbert space is discussed for selfadjoint operators T. with discrete spectrum and bounded symmetric Vjk satisfying “uniform right definiteness”. Then there are countably many eigenvalues in ?2. Results are given relating the set of limit points of ) to a set defined entirely by the Vjk.  相似文献   

9.
LetX be a real linear space; if is a linear topology onX, let denote the class of all bounded with respect to subsets ofX. In this paper it is shown that the spaceX is algebraically finite dimensional if and only if the class of all convex, absorbing and radially bounded subsets ofX is included in the intersection of all , where runs the set of all linear topologies onX.  相似文献   

10.
  1. The concept of left F-regular semigroups was first defined by Batbedat at the Oberwolfach meeting in 1981. It generalizes the notion of F-regular semigroup introduced by Edwards [4], itself a generalization of the F-inverse semigroups defined by McFadden/O’Carroll [6]
  2. In the present paper we generalize the results of [4] and [6] by defining two preorders and ? on a monoid S with a distinguished band E, as follows: iff x=ay for some a∈E xδy iff x=yb for some b∈E
  3. When S is regular orthodox and E=E(S), is the preorder of [1] p. 29 and is the order of [1] p. 31 (the order of [4]): in fact is the natural partial order introduced by Nambooripad [7].
  4. In b), we define the relation Σ on S: xΣy iff exe=eye for some e∈E Then we consider the congruence σ generated by Σ.
  5. DEFINITION. S is left FE-monoid if each σ-class contain a greatest element with respect to .
  6. PARTICULAR CASES. When S is regular, S is left FE-regular. When S is regular orthodox and E=E(S), S is left F-regular.
  7. We describe the structure of left F-regular semigroups like in [1], [2], [4] and [6]. Note that every left F-regular semigroup is a gammasemigroup [3]
  8. Particular Cases (gamma morphism) and applications (congruences).
  相似文献   

11.
Let S be a regular semigroup. The lattice of all idempotent-separating congruences on S and the lattice of all group congruences on S are both modular sublattices of the full lattice of congruences on S. It is evident that the set theoretical union of these two sublattices, (S), is also a sublattice of the full lattice of congruences on S. It is natural to ask: Under what conditions is the sublattice (S) modular? In this paper we obtain a necessary and sufficient condition for the sublattice (S) to be modular when S is what we call a θ-regular semigroup. Bisimple ω-semigroups and simple regular ω-semigroups are θ-regular semigroups and so this paper extends the work of Munn [5] and Baird [1].  相似文献   

12.
ОсНОВНОИ РЕжУльтАт Ё тОИ стАтьИ жАклУЧАЕт сь В слЕДУУЩЕМ. ЕслИ с ФИксИРОВАННыМr=2, 3,..., тО Дль тОгО, ЧтОБы ИМЕлО М ЕстО (*) гДЕ ДОстАтОЧНО ВыпОлНЕН ИЕ слЕДУУЩИх УслОВИИ: 1) ЕслИ $$1< \frac{{n_\nu + 1}}{{n_\nu }} = g_\nu \in N, \nu = 0,1,$$ тО Дль кАжДОгОΝ=0,1,... ИМЕ Ет МЕстО (**) 2) ЕслИ тО (***) $$n_{\nu + 1} \geqslant (2r - 1)n_\nu , \nu = 0,1,...$$ . ЕслИ И тО УслОВИь (**), (***) ьВльУтсь тАкжЕ НЕОБхОДИМыМИ Д ль (*).  相似文献   

13.
LetA be a set ofk-subsets of {1,...,n} with . We determine the minimal cardinality of thel-shadow ofA. This theorem generalizes a theorem of Kruskal [10], Katona [8], Lindström [11] and other which gives a solution for the problem without the condition . Furthermore we give a necessary and sufficient condition for the uniqueness of the solution in the KKL theorem.  相似文献   

14.
Статья продолжает ис следования Г. Суноути, Л. Лейндлера и В. Ленског о; она посвящена изучению средних вида . Здесь α> — 1/2 и рα> — 1. Для а>0 полностью иссл едован случай неотри цательной, регулярной матрицы {t nk } и классаH ω (ω — модуль не прерывности). При 0>а> ?1/2 получены результаты для весьма широкого клас са матриц. Доказано, чт о в каждом случае порядки указа нных величин для функций изH ω совпа дают с . Кроме того, устанавли вается, что не существ ует естественных обобще ний этих утверждений на классыW r H ω (r≧1). Из результатов стать и вытекают решения не которых ранее поставленных з адач.  相似文献   

15.
In this paper we extend the techniques and the basic results of the classical Galois theory of the fields extension is an algebraic closure of Q, to the algebras extension ? ? ?sym(G), where this last is the ?— algebra of all the continuous symmetric functions ? defined on the absolute Galois group with values in ?.  相似文献   

16.
Let E be a real inner product space of dimension at least 2. Suppose ? : E → ? satisfies If there exist a neighbourhood U of the origin and γ ∈ (0, 1/4) such that ?(U) ? (?γ,γ) + ?, then there exist a real constant c and a continuous linear functional g : E → ? such that Suppose Φ : E → ? satisfies If there exist a neighbourhood U of the origin and β ∈ (0, +∞) such that ¦Φ(x)¦ ≤ β?(Φ(x)) for every x ∈ U, then either Φ vanishes on E? {0} or there exist additive functions a : ? → ? and A : E → ?, a real constant c and a continuous linear functional g : E → ? such that   相似文献   

17.
Let be the following statement: “for any infinite regularκ, for any uniform ultrafilterD onκ,D isλ-descendingly incomplete for all infiniteλ”. is weaker than ?0#. Assuming we prove the following: letL be a logic in which the class of sentences of typeτ is a set if so isτ; then: (I)L is compact iffL has JEP; (II)L satisfies Robinson Consistency Theorem iffL is compact and satisfies Craig Interpolation theorem; (III) if, in addition,L is single-sorted, thenL satisfies Robinson Consistency Theorem iffL has JEP#. JEP (resp. JEP#) are the natural generalizations for logicL of the familiar Joint Embedding Property of elementary (resp. complete) embeddings in first order logic. As a corollary, we characterize first order logic as the only logic having Löwenheim number equal toω together with JEP.  相似文献   

18.
The 0-0 band of the A3 inv?X3 ? system of ND was excited in an electrodeless microwave oscillator (2450 Mc./s.) discharge and photographed on a 6·6 meter concave grating spectrograph in the second order at a dispersion of 0·56 A/mm. Twenty-five out of the predicted twenty-seven branches have been identified in the rotational structure of the 0-0 band. From a rotational analysis, the following rotational constants have been determined: (i)X 3 ? state
  相似文献   

19.
пУстьS k (f,x) — ЧАстНАь сУ ММА РьДА ФУРьЕ ФУНкцИ Иf пО тРИгОНОМЕтРИЧЕскОИ сИстЕМЕ,s k (f,x) — ЧАстНАь сУММА сО пРьжЕННОгО РьДА. Дль \(\Delta _k^n = \left[ {\frac{n}{n},\frac{{k + 1}}{n}} \right)\) , гДЕk=0, 1, ...,n?1, пОлОжИМ , ЕслИt?δ k n И , ЕслИt?[0, 1)δ k n . пОкАжАНО, ЧтО ОпЕРАтО Ры ИМЕУт слАБыИ тИп (1,1). РАссМОтР ЕН РьД слЕДстВИИ О пОВ ЕДЕНИИ сИльНых сРЕДНИх РьДА ФУРьЕ сУММИРУЕМОИ ФУНкцИИ.  相似文献   

20.
LetF q (q=pr) be a field of characteristicp>3 andA the set of all elliptic cubic curves overF q having a given absolute invariantj. Furthermore let ≈be the following equivalence relation: « if and only if and Fq are isomorphic overF q as abelian varieties». The aim of this paper is to study the equivalence classes inA, induced by ≈, and the Frobenius' traces of the cubic curves belonging to different subclasses ofA.  相似文献   

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