@**article**{RISC2377,author = {P. Lisonek},

title = {{New maximal two-distance sets}},

language = {english},

abstract = {A two-distance set in $E^d$ is a point set $X$ in the $d$-dimensional
Euclidean space such that the distances between distinct points in $X$
assume only two different non-zero values. Based on results from classical
distance geometry, we develop an algorithm to classify, for a given $d$,
all maximal (largest possible) two-distance sets in $E^d$. Using this
algorithm we have completed the full classification for all $d\le 7$,
and we have found one set in $E^8$ whose maximality follows from Blokhuis'
upper bound on sizes of $s$-distance sets. While in the dimensions $d\le 6$
our classifications confirm the maximality of previously known sets,
the results in $E^7$ and $E^8$ are new. Their counterpart in dimension
$d\ge 10$ is a set of unit vectors with only two values of inner products in
the Lorentz space $R^{d,1}$. The maximality of this set again follows
from a bound due to Blokhuis.},

journal = {J. Combin. Theory Ser. A},

volume = {77},

pages = {318--338},

isbn_issn = {ISSN 0097-3165},

year = {1997},

refereed = {yes},

length = {21}

}