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Front Matter
Bull. Belg. Math. Soc. Simon Stevin 20 (1), (february 2013)
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Articles
M. H.M. Rashid
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 1-18, (february 2013) DOI: 10.36045/bbms/1366306710
KEYWORDS: Weyl's theorem, Weyl spectrum, Polaroid operators, ‎Property $(w)$, Property $(aw)$, 47A13, 47A53
J. Schillewaert, H. Van Maldeghem
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 19-25, (february 2013) DOI: 10.36045/bbms/1366306711
KEYWORDS: Quadric Veronesean, ‎embedding‎, 51A24
Karima Hamani, Benharrat Belaïdi
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 27-39, (february 2013) DOI: 10.36045/bbms/1366306712
KEYWORDS: linear differential equation, meromorphic function, hyper-order, 34M10, 30D35
Irina Dorca, Daniel Breaz
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 41-55, (february 2013) DOI: 10.36045/bbms/1366306713
KEYWORDS: analytic functions, ‎integral operator, $p$-valent starlike, Convex functions, close-to-convex functions, strongly starlike, 30C45
A. Benkirane, M. Sidi El Vally
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 57-75, (february 2013) DOI: 10.36045/bbms/1366306714
KEYWORDS: Musielak-Orlicz-Sobolev spaces, elliptic boundary value problem, $\varphi$-Laplacian, Musielak-Orlicz function, compact imbedding, 46E35, 46A80, 35J40
Wolfgang Pitsch, Jérôme Scherer
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 77-90, (february 2013) DOI: 10.36045/bbms/1366306715
KEYWORDS: Conjugation spaces, characteristic classes, equivariant Chern classes, 57R20, 55N91, 55N15, 55P92, 55R10
Viktoriia Bilet, Oleksiy Dovgoshey
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 91-110, (february 2013) DOI: 10.36045/bbms/1366306716
KEYWORDS: metric space, pretangent space, isometric embedding‎, infinitesimal geometry of metric spaces, Cayley-Menger determinant, 54E35
Xiaoguang Qi, Zhenhua Wang, Lianzhong Yang
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 111-122, (february 2013) DOI: 10.36045/bbms/1366306717
KEYWORDS: meromorphic functions, difference equation, Finite order, 39A05, 30D35
H. Hosseini Giv, M. Radjabalipour, A. Askari Hemmat
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 123-132, (february 2013) DOI: 10.36045/bbms/1366306718
KEYWORDS: Generalized frame, Coherent state system, Algebraic frame, Analytic frame, Fourier transform, Unbounded operators, 42C15, 43A25
Samuel G. Moreno, Esther M. García-Caballero
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 133-143, (february 2013) DOI: 10.36045/bbms/1366306719
KEYWORDS: Meixner-Pollaczek polynomials, Favard's theorem, non-standard inner product, 33C45, 42C05
Carlos M.C. Riveros
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 145-154, (february 2013) DOI: 10.36045/bbms/1366306720
KEYWORDS: Dupin hypersurfaces, Laplace invariants, lines of curvature, 35N10, 53A07
Daniel Paşca, Zhiyong Wang
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 155-166, (february 2013) DOI: 10.36045/bbms/1366306721
KEYWORDS: Control functions, periodic solutions, Hamiltonian systems with $(q,p)$-Laplacian, The least action principle, Saddle point theorem
Hûseyin Bor, Dansheng Yu
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 167-174, (february 2013) DOI: 10.36045/bbms/1366306722
KEYWORDS: Absolute summability factors, Cesàro means, quasi power increasing sequences, sequence spaces, 40D15, 40F05, 40G05, 40G99, 46A45
Jasson Vindas
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 175-180, (february 2013) DOI: 10.36045/bbms/1366306723
KEYWORDS: Chebyshev upper estimates, Beurling generalized primes, 11N80, 11N05, 11M41
M. Carl, B.Z. Moroz
Bull. Belg. Math. Soc. Simon Stevin 20 (1), 181-187, (february 2013) DOI: 10.36045/bbms/1366306724
KEYWORDS: Matiyasevich's theorem, Diophantine coding, Gödel-Bernays set theory, 11D72, 11G35, 11U05, 03E55
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