Izmailov, A.; Solodov, M. - In: TOP: An Official Journal of the Spanish Society of … 23 (2015) 1, pp. 1-26
<Para ID="Par1">We discuss a certain special subset of Lagrange multipliers, called critical, which usually exist when multipliers associated to a given solution are not unique. This kind of multipliers appear to be important for a number of reasons, some understood better, some (currently) not fully. What is...</para>