Office hours: TR 1-2pm. Office: WCH 336. Zoom meeting info can be found in the syllabus.

**Teaching Assistants and office hours**:

Reader: Peter Tran (ptran108ATucr.edu). Office hour: TBA.

Reader: Shiyi Zhang (szhan251ATucr.edu). Office hour: TBA.

TA/reader office hours are held in WCH 110 unless otherwise stated (actually via Zoom this quarter). The Zoom meeting info can be found in the syllabus.

**UCR Academic Resources Center (ARC)**:

Previous lectures on 3/30, 4/1, 4/6, 4/8, 4/13, 4/15, 4/20, 4/22, 4/27, 4/29, 5/4, 5/6

The book is available for purchase/rent via the Internet. Relevant chapters of the book can also be
found on iLearn. The following webpage maintained by the authors of the textbook offers many errata and
sample solutions to
selected exercises:

Textbook Homepage

Main lecture notes on automata and formal languages.

Slides for week 1: Introduction, DFA and NFA.

Slides for week 2: REX and equivalence among DFA, NFA and REX.

Slides for week 3: Algebraic laws for REX and pumping lemma for RL.

Slides for week 4: RL properties and minimization of DFA.

Slides for week 5: CFG and CFL.

Slides for week 6: CFG parsing and ambiguity.

Slides for week 7: Various forms of PDA and their equivalence to CFG.

Slides for week 8: Chomosky normal form.

Slides for week 9: Pumping lemma, closure properties and the CYK algorithm.

Slides for week 10: Introduction to undecidability and Turing machines.

Formal Grammars and Languages

Computability

These chapters are not very technical and may help provide some high-level concepts about the theory. The following article in a 2015 issue of Communications of the ACM provides some technical perspective on the question of how to decide the equivalence of NFAs and could also be interesting to read:

The Equivalence Problem for Finite Automata

One may also find the following topic interesting:

The Smallest Grammar Problem

HW2 and solution keys

HW3 and solution keys

HW4

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The following mapping shows how your overall scores will be translated into letter grades at the end of the quarter: 90+ -> A+, 85+ -> A, 80+ -> A-, 77+ -> B+, 73+ -> B, 70+ -> B-, 67+ -> C+, 63+ -> C, 60+ -> C-, 57+ -> D+, 53+ -> D, 50+ -> D-, 49- -> F.