Results 91 to 100 of about 2,339 (216)
Circulant Triangular Fuzzy Number Matrices [PDF]
, 2008 141-154In this paper, we present some operations on circulant triangular fuzzy numbers matrices (TFNMs). The first row of the circulant matrices play important role in this study.
Bhowmik, Monoranjan +2 more
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, 2022 We study the spectrum of the join of several circulant matrices. We apply our results to compute explicitly the spectrum of certain graphs obtained by joining several circulant graphs.Comment: To appear in Linear Algebra and Its ...
Pasini, Federico W. +4 more
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CIRCULANT MODULAR HADAMARD MATRICES
, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eliahou, Shalom, Kervaire, Michel
openaire +3 more sources
International Journal of Climatology, Volume 45, Issue 13, 15 November 2025.Ireland's rainfall monitoring network provides a large spatiotemporal climate dataset, with many stations reporting missing entries during the monitoring period (1981–2010). Filling these gaps is essential for producing climate reports; however, additional consideration is required during modeling to maintain computational feasibility.
Brian O'Sullivan, Gabrielle Kelly
wiley +1 more source
The nonidealness index of circulant matrices
Electronic Notes in Discrete Mathematics, 2008 Abstract Ideal matrices are precisely those matrices M where the set covering polyhedron Q ∗ ( M ) equals the polyhedron Q ( M ) = { x : M x ≥ 1 , x ≥ 0 } . In a previous work (2006) we defined a nonidealness index equivalent to max { t : Q ( M ) ⊂ t Q ∗ ( M ) } .
Gabriela R. Argiroffo, Silvia M. Bianchi
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Journal of Inherited Metabolic Disease, Volume 48, Issue 6, November 2025.ABSTRACT Phosphomannomutase deficiency (PMM2‐CDG) is the most common congenital disorder of glycosylation, characterized by variable early‐onset neurological (hypotonia, cerebellar syndrome, developmental delay) and multi‐organ manifestations. Although several clinical trials are ongoing, current biomarkers lack prognostic or monitoring utility ...
Florencia Epifani +14 more
wiley +1 more source
Unit group of algebra of circulant matrices [PDF]
International Journal of Group Theory, 2013 Let Crn(Fp) denote the algebra of nXn circulant matrices over Fp, finite field of order p of prime characteristic p. The order of the unit groups U(Cr3(Fp)), U(Cr4(Fp)) and U(Cr5(Fp)) of algebras of circulant matrices over Fp are characterized.
Rajendra Sharma, Pooja Yadav
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Circulant matrices and mathematical juggling
The Art of Discrete and Applied Mathematics, 2018 Summary: Circulants form a well-studied and important class of matrices, and they arise in many algebraic and combinatorial contexts, in particular as multiplication tables of cyclic groups and as special classes of Latin squares. There is also a known connection between circulants and mathematical juggling.
Richard A. Brualdi, Michael W. Schroeder
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Journal of Combinatorial Designs, Volume 33, Issue 10, Page 379-387, October 2025.ABSTRACT The E ( s 2 )‐optimal and minimax‐optimal supersaturated designs (SSDs) with 12 rows, 11 q columns, and s max = 4 are enumerated in a computer search: there are, respectively, 34, 146, 0, 3, and 1 such designs for q = 2 , 3 , 4 , 5, and 6. Cheng and Tang proved that for q > 6, there are no such SSDs.
Luis B. Morales
wiley +1 more source
Spatial circular matrices, with applications [PDF]
The cumulants of the quadratic forms associated to the so-called spatial design matrices are often needed for inference in the context of isotropic processes on uniform grids.
Federico Martellosio, Grant Hillier
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