Results 1 to 10 of about 724,525 (268)
On the existence of block-transitive combinatorial designs [PDF]
Combinatorics
Michael Huber
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Exact bounds for (λ,n)–stable 0-1 matrices. [PDF]
Consider a v × v (0, 1) matrix A with exactly k ones in each row and each column. A is (λ, n)–stable, if it does not contain any λ × n submatrix with exactly one 0. If A is (λ, n)–stable, λ, n ≥ 2, then under suitable conditions on A, v ≥ k k(n−1)+(λ−2) .
Trevor Bruen
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Construction of Tm-type and Tm-assisted PBIB designs
Two-associate class triangular designs have been explored greatly but the Tm-type PBIB designs (m ≥ 3) largely remains unexplored. The paper is written with an objective to construct a new series of Tm-type PBIB designs and to derive some more series of
Parneet Kaur , Davinder Kumar Garg
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Statistical Methods to Support Difficult Diagnoses
Far too often, one meets patients who went for years or even decades from doctor to doctor without obtaining a valid diagnosis. This brings pain to millions of patients and their families, not to speak of the enormous costs.
Guenter F. Pilz +3 more
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In this article, we adapt the edge-graceful graph labeling definition into block designs and define a block design V,B with V=v and B=b as block-graceful if there exists a bijection f:B⟶1,2,…,b such that the induced mapping f+:V⟶Zv given by f+x=∑x∈AA ...
Dilara Erdemir, Emre Kolotoğlu
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Inhalation-modulated detection of olfactory BOLD responses in the human brain
IntroductionIn contrast to other sensory domains, detection of primary olfactory processes using functional magnetic resonance imaging has proven to be notably challenging with conventional block designs.
Aino-Lotta I. Alahäivälä +6 more
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Construction of Some Circular Regular Graph Designs in Blocks of Size Four Using Cyclic Shifts
Circular regular graph designs play an important role in the design of experiments where most of the balanced incomplete block designs require a large number of blocks.
Rashid Ahmed +3 more
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Analysis of Covariance of Reinforced Balanced Incomplete Block Designs With a Single Explanatory Variable [PDF]
Reinforced balanced incomplete block designs (BIBDs) are very useful in statistical planning of experiments as they can be constructed for any number of treatments for given numbers of replications.
D.K. Ghosh, M.G. Bhatt, S.C. Bagui
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Existence of a new class of group divisible designs with block size four
Group divisible designs are not only kinds of classical designs in combinatorial design theory, but also have extremely important applications in coding theory.
TANG Jiahao WANG Jinhua
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A quasidouble resolvable 2–(49, 7, 2) design
The very first example of a quasidouble resolvable 2–(49, 7, 2) design is given.
Shyam Saurabh, Kishore Sinha
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