16 research outputs found
Minimum weight shield synthesis for space vehicles
Minimum weight proton shield synthesis for space vehicle
Ordered groupoids and the holomorph of an inverse semigroup
We present a construction for the holomorph of an inverse semigroup, derived
from the cartesian closed structure of the category of ordered groupoids. We
compare the holomorph with the monoid of mappings that preserve the ternary
heap operation on an inverse semigroup: for groups these two constructions
coincide. We present detailed calculations for semilattices of groups and for
the polycyclic monoids.Comment: 16 page
A solution of the neutron transport equation :
"Nuclear Development Associates, Inc., White Plains, New York.""Work performed under Contract AT(30-1)-862 with the United States Atomic Energy Commission.""May 31, 1955.""NYO-6260 ; NDA 15C-53.""This report distributed in accordance with TID-4500-Physics Category."Mode of access: Internet