Bulletin of the Belgian Mathematical Society, Simon Stevin (B BELG MATH SOCSIM)
Journal description
The Bulletin of the Belgian Mathematical Society  Simon Stevin publishes papers in English, Dutch, French and German. The bulletin is devoted to articles of the following types: expository papers: these should present to a large audience some significant aspects of Pure or Applied Mathematics; research articles: the aim of this section is to publish rapidly high level research papers.
Current impact factor: 0.36
Impact Factor Rankings
2015 Impact Factor  Available summer 2015 

2013 / 2014 Impact Factor  0.357 
2012 Impact Factor  0.316 
2011 Impact Factor  0.397 
2010 Impact Factor  0.341 
2009 Impact Factor  0.592 
2008 Impact Factor  0.236 
2007 Impact Factor  0.174 
2006 Impact Factor  0.155 
2005 Impact Factor  0.196 
2004 Impact Factor  0.295 
2003 Impact Factor  0.444 
2002 Impact Factor  0.221 
2001 Impact Factor  0.245 
2000 Impact Factor  0.2 
1999 Impact Factor  0.346 
Impact factor over time
Additional details
5year impact  0.39 

Cited halflife  6.30 
Immediacy index  0.05 
Eigenfactor  0.00 
Article influence  0.28 
Website  Bulletin of the Belgian Mathematical Society Simon Stevin website 
Other titles  Bulletin of the Belgian Mathematical Society, Simon Stevin (Online), Bull. Belg. Math. Soc 
ISSN  13701444 
OCLC  52636340 
Material type  Document, Periodical, Internet resource 
Document type  Internet Resource, Computer File, Journal / Magazine / Newspaper 
Publications in this journal

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ABSTRACT: Let $S(\mathbb{D})$ be the collection of all the holomorphic selfmaps of open unit disk $\mathbb{D}$ of the complex plane $\mathbb{C}$, and $C_{\varphi}$, the composition operator induced by $\varphi\in S(\mathbb{D})$. For $\alpha>0,\;\lambda\in \mathbb{C}$, we give some sufficient and necessary conditions for the hypercyclicity of multiples of composition operators $\lambda C_\varphi$ acting on the weighted Banach spaces of entire functions $H_{\alpha,0}^\infty$. Moreover, we obtain a partial characterization for the frequent hypercyclicity of $\lambda C_\varphi$ on $H_{\alpha,0}^\infty$.Bulletin of the Belgian Mathematical Society, Simon Stevin 09/2014; 21(3):385401. 
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ABSTRACT: We introduce a class of rings, namely the class of left or right $p$nil rings, for which the adjoint groups behave regularly. Every $p$ring is close to being left or right $p$nil in the sense that it contains a large ideal belonging to this class. Also their adjoint groups occur naturally as groups of automorphisms of $p$groups. These facts and some of their applications are investigated in this paper.Bulletin of the Belgian Mathematical Society, Simon Stevin 05/2014; 21(2):339349.. 
Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014; 1(1).

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ABSTRACT: Introduction: Let G, H be finite groups. T. Müller [Adv. Math. 153, No. 1, 118154 (2000; Zbl 1004.20016)] developed an enumerative theory of homomorphisms φ:G→H≀S n , as n→∞, and asked to generalize this theory to other sequences of groups. In particular, he conjectured the following. Conjecture 1. Let G, H be a finite groups. Then we have for n→∞ Hom(G,H≀A n )=1 1+s 2 (G) + O (e cn 1/G )Hom(G,H≀S n ), where s 2 (G) is the number of subgroups of index 2 in G. It is the aim of this note to proof this conjecture. Theorem 1. Conjecture 1 holds true for all finite groups G and H.Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014; 2(2). 
Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014; 1(1).

Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014;

Article: Generalized Köthe pdual spaces
Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014; 2(2). 
Article: Generalized Köthe pdual spaces
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ABSTRACT: Let us consider a Banach function space X. The Köthe dual space can be characterized as the space of multipliers from X to L1. We extend this characterization to the space of multipliers from X to Lp in order to de�ne the Köthe pdual space of X. We analyze the properties of this space so as to use it as a tool for studying pth power factorable operators. In particular, we compute qconcavity for these spaces and type and cotype when X is an AMspace. As main applications, we give a characterization for Hilbert Banach function spaces, as well as a factorization for pth power factorable operators through an L(p,1)space.Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014; 21(3). 
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ABSTRACT: Initial problems for HamiltonJacobi functional differential equations and initial boundary value problems of Dirichlet type for parabolic equations are considered. It is proved that classical solutions of functional differential equations can be estimated by solutions of initial problems for ordinary functional differential equations. Theorems on the uniqueness of solutions are obtained as consequences of comparison results. A method of differential inequalities is used. Here, the involved operators do not satisfy the Volterra condition.Bulletin of the Belgian Mathematical Society, Simon Stevin 01/2014; 1(1).
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.