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Home > Journals > Bull. Belg. Math. Soc. Simon Stevin > Volume 9 > Issue 2
Bulletin of the Belgian Mathematical Society - Simon Stevin
VOL. 9 · NO. 2 | 2002
 
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Front Matter
Table of Contents, Bull. Belg. Math. Soc. Simon Stevin, vol. 9, no. 2 (2002)
Bull. Belg. Math. Soc. Simon Stevin 9 (2), (2002) Open Access
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Articles
On dense embeddings of discrete abelian groups into locally compact groups
Sergey L. Gefter, Konstantin M. Kulagin
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 161-165, (2002) DOI: 10.36045/bbms/1102715095 Open Access
KEYWORDS: Dense embeddings, Abelian groups, {$Z$}-property, Locally compact groups, 20K45, 20D05
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Isotropie d'une forme quadratique sur le corps des fonctions d'une quadrique en caractéristique 2
Ahmed Laghribi, Pasquale Mammone
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 167-176, (2002) DOI: 10.36045/bbms/1102715096 Open Access
KEYWORDS: Forme quadratique, corps des fonctions d'une forme quadratique, forme de Pfister, forme voisine, 11E04, 11E81
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{$m$}-systems of polar spaces and {SPG} reguli
D. Luyckx
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 177-183, (2002) DOI: 10.36045/bbms/1102715097 Open Access
KEYWORDS: {$m$}-system, {SPG} regulus, semipartial geometry, 51E14, 51E20
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Finite {$p$}-groups with few normal subgroups. II
Gheorghe Silberberg
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 185-192, (2002) DOI: 10.36045/bbms/1102715098 Open Access
KEYWORDS: {$p$}-group, normal subgroup, 20D15
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Resonant nonlinear boundary value problems with almost periodic nonlinearity
A. Cañada, D. Ruiz
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 193-204, (2002) DOI: 10.36045/bbms/1102715099 Open Access
KEYWORDS: Nonlinear boundary value problems, resonance, ordinary equations, solvability, Dirichlet boundary conditions, almost periodic nonlinearities, coupled pendulum, 34B15, 34C11, 47J05, 47N20
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Quelques extensions d'un problème de Paul Erdős sur les groupes
Alireza Abdollahi, Nadir Trabelsi
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 205-215, (2002) DOI: 10.36045/bbms/1102715100 Open Access
KEYWORDS: Infinite subsets, finitely generated soluble groups, commutators, 20F16, 20F19
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On generalized quadrangles with some concurrent axes of symmetry
Koen Thas
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 217-243, (2002) DOI: 10.36045/bbms/1102715101 Open Access
KEYWORDS: generalized quadrangle, axis of symmetry, translation generalized quadrangle, 51E12
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A multiplicity result for nonlinear second order periodic equations with nonsmooth potential
Leszek Gasiński, Nikolaos S. Papageorgiou
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 245-258, (2002) DOI: 10.36045/bbms/1102715102 Open Access
KEYWORDS: Scalar {$p$}-Laplacian, first eigenvalue, locally Lipschitz functional, generalized variational derivative, Clarke subdifferential, critical point, nonsmooth Palais-Smale conditional, Mountain pass theorem, maximal monotone and generalized pseudomonotone operators, 34B15, 34A60, 34C25, 47J30, 58E05
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On copies of {$c\sb 0$} and {$l\sb \infty$} in {$L\sb {w\sp *}(X\sp *,Y)$}
J. C. Ferrando
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 259-264, (2002) DOI: 10.36045/bbms/1102715103 Open Access
KEYWORDS: Weak*-weakly continuous linear operator, On copy of {$c\sb 0$} and {$l\sb \infty$}, 46B25, 46E30
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Gaps in the Milnor-Moore spectral sequence
Thomas Kahl, Lucile Vandembroucq
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 265-277, (2002) DOI: 10.36045/bbms/1102715104 Open Access
KEYWORDS: Milnor-Moore spectral sequence, L.S.-category, Toomer invariant, 55T20, 55M30, 55P62
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Further radii in topological algebras
L. Oubbi
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 279-292, (2002) DOI: 10.36045/bbms/1102715105 Open Access
KEYWORDS: Topological algebras, spectral radius, Boundedness radius, 46H05
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Quelques remarques sur l'opérateur de Schrödinger avec un potential complexe singulier particulier
Tocka Diagana
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 293-298, (2002) DOI: 10.36045/bbms/1102715106 Open Access
KEYWORDS: Forme somme, potential singuliere, opérateur de Schrödinger, théorème du point fixe, 47N50, 35J10, 47B44, 81Q05
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Vecteurs Gevrey d'opérateurs différentiels quasihomogènes
Chikh Bouzar, Rachid Chaïli
Bull. Belg. Math. Soc. Simon Stevin 9 (2), 299-310, (2002) DOI: 10.36045/bbms/1102715107 Open Access
KEYWORDS: Gevrey vectors, Gevrey spaces, Quasielliptic systems, 35H30, 35A20
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