# CSE104, Fall 2020: Computational Complexity

Posts from CSE104, Fall 2020: Computational Complexity, via the RSS Amplifier directory.

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## [CSE104, Lec 16: Introduction to circuit complexity](https://www.youtube.com/watch?v=wAJqr4oqy8A)

_2020-12-02 · C. Seshadhri_

## [CSE104, Lec 15: More on the polynomial hierarchy](https://www.youtube.com/watch?v=WoSgBFD5EiA)

_2020-11-26 · C. Seshadhri_

## [CSE104, Lec 14: The polynomial hierarchy](https://www.youtube.com/watch?v=p6Jx5C_mOrs)

_2020-11-24 · C. Seshadhri_

## [CSE104, Lec 13: NL = co-NL, the Immerman-Szelepcsenyi theorem](https://www.youtube.com/watch?v=FrmW4h8bfdQ)

_2020-11-20 · C. Seshadhri_

## [CSE104, Lec 11: Logspace reductions and NL-completeness](https://www.youtube.com/watch?v=xdr5xKOjOHw)

_2020-11-18 · C. Seshadhri_

## [CSE104, Lec 12: Read-once certificates for NL, starting NL=co-NL](https://www.youtube.com/watch?v=0UAy0pO-8FQ)

_2020-11-18 · C. Seshadhri_

## [CSE104, Lec 10: QBF is PSPACE-complete, the notion of logspace reductions](https://www.youtube.com/watch?v=K6tHFAFXsPU)

_2020-11-05 · C. Seshadhri_

## [CSE104, Lec 9: Savitch's theorem, PSPACE = NPSPACE](https://www.youtube.com/watch?v=3-jMWdLimRo)

_2020-11-04 · C. Seshadhri_

## [CSE104, Lec 8: EXP vs NEXP and the time hierarchy theorem](https://www.youtube.com/watch?v=zDyPAGXTzmQ)

_2020-10-29 · C. Seshadhri_

## [CSE104, Lec 7: co-NP and the factoring problem](https://www.youtube.com/watch?v=5__hSGGPtVg)

_2020-10-27 · C. Seshadhri_

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_2020-10-27 · **Sponsored**_

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## [CSE104, Lec 5: The proof of the Cook-Levin theorem and the NP-completeness of 3SAT](https://www.youtube.com/watch?v=vW9ynqCdFQc)

_2020-10-20 · C. Seshadhri_

## [CSE104: Lec 4, NP-completeness, the Cook-Levin Theorem](https://www.youtube.com/watch?v=8Tea7eKK5w4)

_2020-10-15 · C. Seshadhri_

## [CSE104: Lec 3, the definitions of P and NP](https://www.youtube.com/watch?v=RriB4MaA5E4)

_2020-10-13 · C. Seshadhri_

## [CSE104, Lec 2: Turing machine simulations](https://www.youtube.com/watch?v=2bVu4ida1dU)

_2020-10-08 · C. Seshadhri_

## [CSE104, Computational Complexity: Lec 1, Cantor's diagonalization](https://www.youtube.com/watch?v=0FwTO7mT0G8)

_2020-10-06 · C. Seshadhri_