Ján Pich
Department of Computer Science
University of Oxford
jan.pich@cs.ox.ac.uk
Royal Society University Research Fellow
Area: Mathematical Logic & Complexity Theory
CV       Research Statement       Open Positions
Publications (2009-2014):
Complexity theory in feasible mathematics
, PhD thesis, 2014.Logical strength of complexity theory and a formalization of the PCP theorem in bounded arithmetic
, LMCS'15, preprint: Jun 2014.A PV-proof of the PCP theorem.
Circuit lower bounds in bounded arithmetics
, APAL'15, preprint: May 2013.Theories weaker than PV cannot prove polynomial circuit lower bounds for SAT unless p-size circuits are approximable by weaker computational models.
Hard tautologies
, MSc thesis, 2011.Nisan-Wigderson generators in proof systems with forms of interpolation
, MLQ'11, preprint: Mar 2010.This shows that Razborov's conjecture about NW-generators holds for systems admitting feasible interpolation.
Bounded arithmetic and theory of Razborov and Rudich
, Bc thesis, 2009.