Generalized Bhaskar Rao designs with block size three

نویسندگان

  • Jennifer Seberry
  • Bhaskar Rao
چکیده

We show that the necessary conditions λ = 0 (mod IGI), λ(v-l)=0 (mod2), λv(v 1) = [0 (mod 6) for IGI odd, (0 (mod 24) for IGI even, are sufficient for the existence of a generalized Bhaskar Rao design GBRD(v,b,r,3,λ;G) for the elementary abelian group G, of each order IGI. Disciplines Physical Sciences and Mathematics Publication Details Seberry, J, Generalized Bhaskar Rao designs with block size three, Journal of Statistical Planning and Inference, 11, 1985, 373-380. This journal article is available at Research Online: http://ro.uow.edu.au/infopapers/1016 Journal of Statistical Planning and Inference 11 (1985) 373-379 North-Holland 373 GENERALIZED BHASKAR RAO DESIGNS OF BLOCK SIZE THREE ] ennifer SEBERR Y Depanment of Computer Science, University oj Sydney, N.S. W. 2006, A usrralia Received 4 May 1982; revised man\l~\.Tipt r~'Ccived 2 April 1984 Recommended by N.M. Singhi Ab~tracl: We show that the necc.~~ary conditions ,1.",0 (mod IGI), A(u-l)"'0(mod2), 1)~[0 (mod 6) AU(u 0 (mod 24) for IGI odd, for IGI even, are sufficient for the exi,tenee of a generalized Bhaskar Rao de,ign GBRD(l!, b, r, 3, l;G) for the elementary abelian group G, of each order IGI. AMS Subject Classifications: Primary 05B99: Secondary, 05B05, 05B30, 62KlO.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Bhaskar Rao designs and the groups of order 12

We complete the solution of the existence problem for generalized Bhaskar Rao designs of block size 3 over groups of order 12. In particular we prove that if G is a group of order 12 which is cyclic or dicyclic, then a generalized Bhaskar Rao design, GBRD(v, 3, λ = 12t;G) exists for all v ≥ 3 when t is even and for all v ≥ 4 when t is odd.

متن کامل

Bhaskar Rao ternary designs and applications

Generalized Bhaskar Rao n-ary are defined. This paper studies with elements from abelian groups of Generalized Bhaskar Rao nary called Bhaskar Rao Bhaskar Rao a v b matrix of ±1 and such that the inner product of any two rows 0 and the matrix obtained of X by its absolute value the incidence matrix of the construction of infinite families of Balanced Balanced are Some construction methods and n...

متن کامل

Generalised Bhaskar Rao designs with elements from cyclic groups of even order

A necessary condition is given for the existence of some Generalised Bhaskar Rao designs (GBRDs) with odd block size over cyclic groups of even order. Some constructions are given for GBRDs over cyclic groups of even order with block size 3 and with block size 4. AMS Subject Classification: 05B99 J( ey words and phrases: Balanced Incomplete Block Designs; Generalised Bhaskar Rao Designs

متن کامل

Nested balanced ternary designs and Bhaskar Rao designs

In this paper, we consider balanced ternary designs, BTDs, in which every block contains one element singly and the rest doubly. We call these packed BTDs, and we investigate three aspects of these designs: existence, nestings and signings. Construction methods generate classes of packed BTDs that are nested with balanced (BIBD) or partially balanced (PBIBD) incomplete block designs. Some of th...

متن کامل

On the (v,5, )-Family of Bhaskar Rao Designs

We establish that the necessary conditions for the existence of Bhaskar Rao designs of block size ve are : i). (v 1) 0 (mod 4) ii). v(v 1) 0 (mod 40) iii). 2j. We show these conditions are suucient: for = 4 if v > 215, with 10 smaller possible exceptions and one deenite exception at v = 5; for = 10 if v > 445, with 11 smaller possible exceptions, and one deenite exception at v = 5; and for = 20...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014