Results 21 to 30 of about 731,502 (69)
, 1983 This paper develops cyclotomy for periods of lengths 2, 3 and 4 for moduli which are primes and products of two primes.
Emma Lehmer, D. H. Lehmer
core +1 more source
Genuinely nonabelian partial difference sets
Journal of Combinatorial Designs, Volume 32, Issue 7, Page 351-370, July 2024.Abstract Strongly regular graphs (SRGs) provide a fertile area of exploration in algebraic combinatorics, integrating techniques in graph theory, linear algebra, group theory, finite fields, finite geometry, and number theory. Of particular interest are those SRGs with a large automorphism group.
John Polhill +3 more
wiley +1 more source
New constructions for disjoint partial difference families and external partial difference families
Journal of Combinatorial Designs, Volume 32, Issue 4, Page 190-213, April 2024.Abstract Recently, new combinatorial structures called disjoint partial difference families (DPDFs) and external partial difference families (EPDFs) were introduced, which simultaneously generalize partial difference sets, disjoint difference families and external difference families, and have applications in information security.
Sophie Huczynska, Laura Johnson
wiley +1 more source
Generalized permutation patterns - a short survey [PDF]
, 2010 An occurrence of a classical pattern p in a permutation π is a subsequence of π whose letters are in the same relative order (of size) as those in p.
Steingrimsson, Einar
core +3 more sources
On the Stability of the Linear Complexity of Some Generalized Cyclotomic Sequences of Order Two
MathematicsLinear complexity is an important pseudo-random measure of the key stream sequence in a stream cipher system. The 1-error linear complexity is used to measure the stability of the linear complexity, which means the minimal linear complexity of the new ...
Chi Yan, Chengliang Tian
doaj +1 more source
New class of frequency-hopping sequences set with optimal average Hamming correlation property
Tongxin xuebao, 2012 The average Hamming correlation is an important performance parameter of frequency-hopping sequences.A generalization of Whiteman cyclotomy was proposed and then some properties of the new defined cyclotomy classes were presented.Based on the ...
Pin-hui KE +2 more
doaj +2 more sources
3D simulation of laminated shell structures using the Proper Generalized Decomposition [PDF]
, 2014 Numerical simulations of composite structures are generally performed using multi-layered shell elements in the context of the finite elements method. This strategy has numerous advantages like a low computation time and the capability to reproduce the ...
PRULIERE, Etienne
core +1 more source
, 1976 In this note we use the theory of cyclotomy to help us construct initial blccks from which we can develop balanced and partially balanced incomplete block designs. Our main construction method, using unions of cyclotomic classes, gives us upper bounds on
Anne P Street (20284314) +2 more
core +1 more source
Using cyclotomy to construct orthogonal designs
, 1976 An orthogonal design of order n and type (s1, S2) on the commuting variables x1, X2 is a matrix of order n with entries from {O, ± x1, ± x2 } whose row vectors are formally orthogonal.
Jennifer Seberry (19583125) +1 more
core +1 more source
The histopathological spectrum of acute generalized exanthematous pustulosis (AGEP) and its differentiation from generalized pustular psoriasis [PDF]
, 2010 Background: Acute generalized exanthematous pustulosis (AGEP) represents a severe, acute, pustular skin reaction that is most often induced by drugs. AGEP can be difficult to differentiate from generalized pustular psoriasis (GPP) both clinically and ...
Fidler, Vaclav +11 more
core +2 more sources