TY  - JOUR
A1  - Jürgensen, Helmut
A1  - Konstantinidis, Stavros
T1  - (Near-)inverses of sequences
N2  - We introduce the notion of a near-inverse of a non-decreasing sequence of positive integers; near-inverses are intended to assume the role of inverses in cases when the latter cannot exist. We prove that the near-inverse of such a sequence is unique; moreover, the relation of being near-inverses of each other is symmetric, i.e. if sequence g is the near-inverse of sequence f, then f is the near-inverse of g. There is a connection, by approximations, between near- inverses of sequences and inverses of continuous strictly increasing real-valued functions which can be exploited to derive simple expressions for near-inverses
Y1  - 2006
UR  - http://www.informaworld.com/openurl?genre=journal&issn=0020-7160
U6  - https://doi.org/10.1080/00207160500537801
SN  - 0020-7160
ER  - 
TY  - BOOK
A1  - Jürgensen, Helmut
A1  - Katsura, M.
A1  - Konstantinidis, Stavros
T1  - Maximal solid codes
T3  - Preprint / Universität Potsdam, Institut für Informatik
Y1  - 1999
SN  - 0946-7580
VL  - 1999, 03
PB  - Univ.
CY  - Potsdam
ER  -