LOGCFL

LOGCFL is a complexity class that stands for "Logarithmic Space Context-Free Languages." It is a subclass of context-free languages that can be recognized by a deterministic pushdown automaton operating in logarithmic space. More formally, a language is in LOGCFL if it can be decided by a deterministic Turing machine that uses logarithmic space and is able to make use of a stack, like a pushdown automaton.