Many philosophers think that, necessarily, any material objects have a fusion (let's call that doctrine "Universalism"). In this paper I point out a couple of strang...
After a survey of some realizations of self-replicating machines, this paper presents the construction based selfreplication of universal 3D structures. This self-replication proc...
Improving an old result of Clarkson et al., we show that the number of distinct distances determined by a set P of n points in three-dimensional space is (n77/141) = (n0.546 ), fo...
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
Cuckoo hashing was introduced by Pagh and Rodler in 2001 [12]. A set S of n keys is stored in two tables T1 and T2 each of which has m cells of capacity 1 such that constant access...