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Bull. Belg. Math. Soc. Simon Stevin 27 (4), (november 2020)
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Articles
Sam Mattheus
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 481-488, (november 2020) DOI: 10.36045/j.bbms.190708
KEYWORDS: Fuglede's conjecture, tiling set, spectral set, elementary abelian group, 05A18, 05B45, 43A25, 51E20, 52C22
Rong Mi
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 489-497, (november 2020) DOI: 10.36045/j.bbms.190405b
KEYWORDS: $L^{2p}_{f}$-harmonic $1$-forms, $f$-minimal hypersurface, weighted manifold, 58C40, 53C42, 53C21
Rahul Kumar, Atul Gaur
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 499-508, (november 2020) DOI: 10.36045/j.bbms.190718
KEYWORDS: $\lambda$-domain, $\Delta$-domain, Overring, Maximal subring, Valuation domain, 13G05, 13B02, 13G99, 13A18
Mateusz Woronowicz
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 509-519, (november 2020) DOI: 10.36045/j.bbms.190913
KEYWORDS: 20K15, 13A99, nil group, torsion-free abelian group, associative ring, commutative ring, tensor product
Moharram Aghapournahr, Mahmoud Behrouzian
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 521-533, (november 2020) DOI: 10.36045/j.bbms.190810
KEYWORDS: local cohomology, ${\rm FD_{\leq n}}$ modules, cofinite modules, cominimax modules, weakly cofinite modules, 13D45, 13E05, 14B15
Dano Kim
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 535-545, (november 2020) DOI: 10.36045/j.bbms.180904
KEYWORDS: 14F18, 32J25, 32U05
Mahnaz Shams, Morteza Oveisiha, Ali Abkar
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 547-556, (november 2020) DOI: 10.36045/j.bbms.190914
KEYWORDS: split variational inequality, limiting subdifferential, approximating sequence, well-posedness, 49J40, 49K40, 90C31
Farzaneh Vahdanipour, Kamal Bahmanpour, Ghader Ghasemi
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 557-566, (november 2020) DOI: 10.36045/j.bbms.190211
KEYWORDS: Bass number, cofinite module, cohomological dimension, generalized local cohomology module, Noetherian ring, 13D45, 13E05, 14B15
Michel Cahen, Simone Gutt, Stefan Waldmann
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 567-594, (november 2020) DOI: 10.36045/j.bbms.200304
KEYWORDS: group algebras, growth of a finitely generated group, Nuclear spaces, Fréchet-Hopf $^*$-algebras, 20C07, 43A20, 46A11, 13J10, 53D55
Aastha Malhotra, Anuradha Gupta
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 595-607, (november 2020) DOI: 10.36045/j.bbms.200316
KEYWORDS: Complex symmetric, Composition operator, conjugation, 47B33, 47B38
Abderraouf Dorai, Elmiloud Chil
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 609-626, (november 2020) DOI: 10.36045/j.bbms.191104
KEYWORDS: $f$-algebra, Mutiorthomorphism, Order ideal, Orthogonally additive homogeneous polynomial, Orthomorphism, Orthosymmetric, Polyorthomorphism, Ring ideal, Riesz space, 06F25, 47B65, 46G25
Qingze Lin, Junming Liu, Yutian Wu
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 627-637, (november 2020) DOI: 10.36045/j.bbms.190603
KEYWORDS: order boundedness, Weighted composition operator, Dirichlet space, Hardy space, 47B33, ‎30H05, 30H25
Mohammad Ansari
Bull. Belg. Math. Soc. Simon Stevin 27 (4), 639-640, (november 2020) DOI: 10.36045/j.bbms.200316b
KEYWORDS: 47A16, 47A15, strongly topologically transitive, hypertransitive
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