Office hours: TR 9:30-10:30am. Office: WCH 336. The office hours will be held in-person this quarter, but online sessions might be possible upon special requests (with pre-arrangement) and the Zoom meeting info can be found in the syllabus.

**Teaching Assistants and office hours**:

TA: Cameron Tsai (ctsai081ATucr.edu). Office hours: W 12:30-1:30pm.

Reader: Sunny Atalig (jatal005ATucr.edu). Office hour: N/A.

Reader: Joshua Hsu (jhsu094ATucr.edu). Office hour: N/A.

Reader: Seokha Kang (skang121ATucr.edu). Office hour: N/A.

TA office hours are held in WCH 110 (Cameron) or WCH 136 (Lisa) this quarter.

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

Dis 022, F 12:00 - 12:50pm, WCH 142, Lisa Chen

Dis 023, W 2:00 - 2:50pm, Physics 2104, Lisa Chen

The book is available for purchase/rent via the Internet. Relevant chapters of the book can also be
found on eLearn/Canvas. 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 to be used in lectures .

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 gives a 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

Midterm solutions

HW4 and solution keys

HW5 and solution keys

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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.