Pregled bibliografske jedinice broj: 225482
A Block Negacyclic Bush-Type Hadamard Matrix and Two Strongly Regular Graphs
A Block Negacyclic Bush-Type Hadamard Matrix and Two Strongly Regular Graphs // Journal of combinatorial theory. Series A, 98 (2002), 1; 118-126 doi:10.1006/jcta.2001.3231 (međunarodna recenzija, članak, znanstveni)
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Naslov
A Block Negacyclic Bush-Type Hadamard Matrix and Two Strongly Regular Graphs
Autori
Janko, Zvonimir ; Kharaghani, Hadi
Izvornik
Journal of combinatorial theory. Series A (0097-3165) 98
(2002), 1;
118-126
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
symmetric design ; Bush-type Hadamard matrix ; strongly regular graph ; block negacyclic matrix ; balanced generalized weighing matrix.
Sažetak
A block negacyclic Bush-type Hadamard matrix of order 36 is used in a symmetric BGW(26, 25, 24) with zero diagonal over a cyclic group of order 12 to construct a twin strongly regular graph with parameters v=936, k=375, lambda=mi=150 whose points can be partitioned in 26 cocliques of size 36. The same Hadamard matrix then is used in symmetric BGW(50, 49, 48) with zero diagonal over a cyclic group of order 12 to construct a Siamese twin strongly regular graph with parameters v=1800, k=1029, lambda=mi=588.
Izvorni jezik
Engleski
Znanstvena područja
Matematika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
