
06321430
j
2014e.00671
Vr\'abel, Peter
Mathematical tools  semiinvariants. (Matematick\'e n\'astroje.)
Obz. mat. fyz. inform. 38, No. 2, 1115 (2009).
2009
PROTONIT s.r.o., Nitrianske Hrn\v{c}iarovce
SK
I40
semiinvariants
problem solving
Summary: A semiinvariant is the quantity which is changed monotonically and gains only finite values. Semiinvariants are often used in the analysis of evolving systems to show that certain final configurations must occur. Every investigated object of a problem is assigned to some quantity value and is defined as a suitable operation on the set of objects. We concentrate on the least or the largest value of the semiinvariant and we solve the problem by its means.