Peng Cheng: Final segments of the d.r.e. degrees

Invitation to the Logic Seminar at the National University of Singapore

Date: Wednesday, 30 March 2016, 17:00 hrs

Room: S17#05-11, Department of Mathematics, NUS

Speaker: Peng Cheng

Title: Final segments of the d.r.e. degrees

URL: http://www.comp.nus.edu.sg/~fstephan/logicseminar.html

Abstract: We will give an introduction on the topic of
finial segments of d.r.e. degrees. We first review what
kind of finite lattice can be embedded into the d.r.e. degrees
as final segments. We then will focus on what kind
of finite lattice are not embeddable into the d.r.e. degrees
as finial segment, we will give the ideas try to show that the
five-element lattice M_3 is not embeddable into the d.r.e. degrees
as final segments.

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