Uploaded February 2018 | Updated September 2026, 17 minutes ago
This lecture is part of a course on the Theory of Computation, by Professor Gabriel Robins at the University of Virginia (CS3102 Spring 2018), with PowerPoint slides at http://www.cs.virginia.edu/~robins/cs3102 and other related videos at http://www.cs.virginia.edu/~robins/videos.html
Specific topics covered in this lecture: review of context-free grammars (CFGs), context-free languages (CFLs), palindromes, well-balanced parenthasis, ambiguity, pushdown automata (PDAs), non-deterministic PDAs, recognition by PDAs of 0^n1^n and w$w^R, equivalence of PDAs and CFGs, closure properties of CFLs, union preserves context-freeness
This lecture is part of a course on the Theory of Computation, by Professor Gabriel Robins at the University of Virginia (CS3102 Spring 2018), with PowerPoint slides at http://www.cs.virginia.edu/~robins/cs3102 and other related videos at http://www.cs.virginia.edu/~robins/videos.html
Specific topics covered in this lecture: review of context-free grammars (CFGs), context-free languages (CFLs), palindromes, well-balanced parenthasis, ambiguity, pushdown automata (PDAs), non-deterministic PDAs, recognition by PDAs of 0^n1^n and w$w^R, equivalence of PDAs and CFGs, closure properties of CFLs, union preserves context-freeness










