## Abstract In this paper, we continue to investigate the existence of 4βRGDDs and uniform 5βGDDs. It is proved that the necessary conditions for the existence of such designs are also sufficient with a finite number of possible exceptions. As an application, the known results on the existence of u
On the existence of room frames of type tu for u = 4 and 5
β Scribed by Ge Gennian; Zhu Lie
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 459 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1063-8539
No coin nor oath required. For personal study only.
β¦ Synopsis
In this article, we describe some new constructions for Room frames and use them to show the existence of Room frames of types t 4 and t s . Combining the result with those of Dinitz and Stinson leads to the following: the only cases for which the existence of Room frames is undecided are those types t 4 where t
π SIMILAR VOLUMES
Dedicated to Professor S. Irie on his 70th birthday ## Communicated by Y. Shibata In this paper we consider the boundary value problem for a semilinear equation 3 1 in the interior domain. We find a time global classical solution with exponential decay property by using singular hyperbolic equat