Topic Brief: The two views of considering the PCP Theorem -- as a locally and probabilistically checkable proof system, and as a hardness ... Why PH is not believed to have a complete problem?Alternating Turing Machines - definition, ...

Noc21 Cs49 Lec08 -

The two views of considering the PCP Theorem -- as a locally and probabilistically checkable proof system, and as a hardness ... Why PH is not believed to have a complete problem?Alternating Turing Machines - definition, ... Properties of logspace reductions such as transitivity, closure of L under such reductions.

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  • The two views of considering the PCP Theorem -- as a locally and probabilistically checkable proof system, and as a hardness ...
  • Why PH is not believed to have a complete problem?Alternating Turing Machines - definition, ...
  • Properties of logspace reductions such as transitivity, closure of L under such reductions.

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noc21-cs49-lec08

noc21-cs49-lec08

Properties of logspace reductions such as transitivity, closure of L under such reductions. Path is NL-complete.

noc21-cs49-lec28

noc21-cs49-lec28

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noc21-cs49-lec33

noc21-cs49-lec33

MA⊆AM. If Graph Isomorphism is NP-complete then PH=Σp2 and.

noc21-cs49-lec09

noc21-cs49-lec09

Completed proof of Immerman-Szelepscenyi Theorem. The Polynomial Hierarchy - motivation for studying, definition.

noc21-cs49-lec11

noc21-cs49-lec11

Complete problems for Σpi and Πpi. Why PH is not believed to have a complete problem?Alternating Turing Machines - definition, ...

noc21-cs49-lec04

noc21-cs49-lec04

Proved that directed Hamiltonian path problem is NP-complete. The class coNP. Complete problem (SAT). Discussed why ...

noc21-cs49-lec36

noc21-cs49-lec36

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noc21-cs49-lec40

noc21-cs49-lec40

The two views of considering the PCP Theorem -- as a locally and probabilistically checkable proof system, and as a hardness ...

noc21-cs49-lec22

noc21-cs49-lec22

BPP ⊆Σp2∩Πp2. The logspace classes BPL and RL. Undirected reachability in RL.

noc21-cs49-lec37

noc21-cs49-lec37

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