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Home > Journals > Bull. Belg. Math. Soc. Simon Stevin > Volume 8 > Issue 1
Bulletin of the Belgian Mathematical Society - Simon Stevin
VOL. 8 · NO. 1 | 2001
 
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Front Matter
Table of Contents, Bull. Belg. Math. Soc. Simon Stevin, vol. 8, no. 1 (2001)
Bull. Belg. Math. Soc. Simon Stevin 8 (1), (2001)
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Articles
Une note sur l'application d'évaluation en homotopie rationnelle
Fabio Simoncini
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 1-3, (2001) DOI: 10.36045/bbms/1102714022
KEYWORDS: 55P62, 55M30
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On complex extrapolated successive overrelaxation (esor): some theoretical results
Nicholas J. Daras
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 5-20, (2001) DOI: 10.36045/bbms/1102714023
KEYWORDS: Extrapolated successive overrelaxation, conformal mappings, 65F10
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A note on the irreducible characters of the Hecke algebra {$H\sb n(q)$}
G. Iommi Amunátegui
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 21-28, (2001) DOI: 10.36045/bbms/1102714024
KEYWORDS: 20C08, 05E05
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Lagrangian submanifolds of constant sectional curvature and their Ribaucour transformation
Ruy Tojeiro
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 29-46, (2001) DOI: 10.36045/bbms/1102714025
KEYWORDS: Lagrangian submanifold, Ribaucour transformation, constant sectional curvature, 53C42, 53D12
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Recognizing {$\scr Q\sb {p,0}$} functions per Dirichlet space structure
K. J. Wirths, J. Xiao
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 47-59, (2001) DOI: 10.36045/bbms/1102714026
KEYWORDS: {$\scr Q\sb {p,0}$}, Möbius invariance, polynomial density, extreme points, composition semigroups, 46E10, 30D45, 30D55, 47B33
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On infinitesimally {$k$}-flat homogeneous spaces
Jürgen Berndt, Evangelia Samiou
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 61-66, (2001) DOI: 10.36045/bbms/1102714027
KEYWORDS: {$k$}-flat rigidity, infinitesimal flats, semi-symmetric spaces, pointwise Osserman spaces, two-point homogeneous spaces, cones, 53C24, 53C30, 53C35
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Fonctions entières et {$m$}-convexité
R. Choukri, A. El Kinani, M. Oudadess
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 67-73, (2001) DOI: 10.36045/bbms/1102714028
KEYWORDS: Fonctions entières, convexité locale, Fréchet, 46H20, 46H30
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The space of Denjoy-Dunford integrable functions is ultrabornological
Pedro J. Paúl
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 75-82, (2001) DOI: 10.36045/bbms/1102714029
KEYWORDS: Denjoy integrals, vector-valued integralsv, ultrabornological spaces, 46E40, 26A39, 46A08, 46E10, 46G10
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A nonmeasurable partition of the reals
Paula Kemp
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 83-86, (2001) DOI: 10.36045/bbms/1102714030
KEYWORDS: 28A12
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Osculating subspaces, normal rational curves and generalized strange curves
E. Ballico, A. Cossidente
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 87-94, (2001) DOI: 10.36045/bbms/1102714031
KEYWORDS: Normal rational curves, strange curves, order sequence, 14H45, 14H55, 51E20
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A lemma on the randomness of {$d$}-th powers in {${\rm GF}(q),\ d\mid q-1$}
P. Sziklai
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 95-98, (2001) DOI: 10.36045/bbms/1102714032
KEYWORDS: 11T23, 12E20
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Une réduction du problème de la continuité des caractères dans les algèbres m-pseudo-convexes
Z. Abdelali, M. Chidami
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 99-103, (2001) DOI: 10.36045/bbms/1102714033
KEYWORDS: Algèbre, caractère, continuité, 46H05
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La réponse affirmative au problème de Michael
Mustapha Laayouni
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 105-108, (2001) DOI: 10.36045/bbms/1102714034
KEYWORDS: Semi-norme, rayon spectrale, caractère, algèbre de Fréchet, 46H40, 46H05
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On the stability of orthogonal bases in non-Archimedean metrizable locally convex spaces
Wiesław Śliwa
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 109-118, (2001) DOI: 10.36045/bbms/1102714035
KEYWORDS: Orthogonal sequences, Schauder bases, non-archimedean Fréchet spaces, ‎46S10, 46A35
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On fibrations with Grassmannian fibers
Július Korbaš
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 119-130, (2001) DOI: 10.36045/bbms/1102714036
KEYWORDS: fiber bundle, Hurewicz fibration, Serre fibration, Grassmann manifold, cohomology spectral sequence, orientable fibration, totally non-homologous to zero, derivation‎, Stiefel-Whitney class, Chern class, stable characteristic class, involution, 55R20, 55R05, 57R20
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Spectrum of a particular bounded self-adjoint linear operator
M. Lezaun, J. I. Maeztu
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 131-139, (2001) DOI: 10.36045/bbms/1102714037
KEYWORDS: spectrum, point spectrum, Poincaré type inequality, 47F05, 35J05, 35P15
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Premiers espaces de la cohomologie de l'algèbre de Lie graduée de Nijenhuis-Richardson de l'espace des fonctions d'une variété
Norbert Poncin
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 141-146, (2001) DOI: 10.36045/bbms/1102714038
KEYWORDS: Cohomologie graduée, calcul symbolique, 17B56, 17B70, algèbre de Nijenhuis-Richardson
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Correction to "Spherical rigidity via contact dynamics"
Philippe Rukimbira
Bull. Belg. Math. Soc. Simon Stevin 8 (1), 147-153, (2001) DOI: 10.36045/bbms/1102714039
KEYWORDS: {$K$}-contact form, clean function, closed characteristics, 53D10, 53C15
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