Sets with small sumset and small periodic product-set
 
 
Description:  We characterize the pairs (A,B) of finite non-empty subsets of a field such that the product-set, AB, is periodic and both the sumset, A+B, and the product-set, AB, are as small as possible, that is, |A+B|=min{p, |A|+|B|-1} and |AB|=max{|A|,|B|}, where p is the characteristic of the underlying field in nonzero characteristic and p=+oo otherwise.
Date:  2011-09-14
Start Time:   15:00
Speaker:  Cristina Caldeira (CMUC/Mat. FCTUC)
Institution:  -
Place:  Room 5.5
Research Groups: -Algebra and Combinatorics
See more:   <Main>  
 
© Centre for Mathematics, University of Coimbra, funded by
Science and Technology Foundation
Powered by: rdOnWeb v1.4 | technical support