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perfectly normal Hedetniemi's conjecture Chromatic number Constructible Universe Well-behaved magma O-space Local Club Condensation. P-Ideal Dichotomy Almost countably chromatic Universal Sequences Hindman's Theorem AIM forcing Ascending path tensor product graph ZFC construction Generalized Clubs middle diamond Strong coloring Foundations Rock n' Roll free Souslin tree Sierpinski's onto mapping principle Distributive tree reflection principles weak square transformations Amenable C-sequence 54G20 stationary hitting Club Guessing Nonspecial tree Uniformization Non-saturation Iterated forcing super-Souslin tree Minimal Walks OCA Successor of Regular Cardinal Sakurai's Bell inequality Postprocessing function Ulam matrix Subtle tree property Filter reflection square principles Subadditive positive partition relation stationary reflection Whitehead Problem Forcing with side conditions Singular Density Subtle cardinal square Strongly Luzin set Cardinal Invariants Rado's conjecture free Boolean algebra Prikry-type forcing Interval topology on trees Poset Successor of Singular Cardinal Forcing Diamond for trees Antichain Martin's Axiom Fodor-type reflection Vanishing levels Microscopic Approach Absoluteness indecomposable filter Partition Relations Closed coloring Prevalent singular cardinals approachability ideal projective Boolean algebra stick incompactness HOD Strongly compact cardinal sap Rainbow sets Singular cofinality coloring number Commutative projection system Shelah's Strong Hypothesis Ascent Path C-sequence S-Space strongly bounded groups Uniformly coherent Mandelbrot set weak Kurepa tree Luzin set Analytic sets b-scale Ramsey theory over partitions Aronszajn tree Almost-disjoint family Fast club Erdos Cardinal weak diamond Weakly compact cardinal Knaster Open Access Small forcing unbounded function Was Ulam right? Ineffable cardinal Partition relations for trees nonmeager set Souslin Tree Dowker space polarized partition relation Diamond Forcing Axioms xbox Countryman line Greatly Mahlo Selective Ultrafilter Generalized descriptive set theory Knaster and friends Respecting tree Fat stationary set Cardinal function Cohen real GMA diamond star Square-Brackets Partition Relations countably metacompact Axiom R Hereditarily Lindelöf space Almost Souslin Sigma-Prikry SNR specializable Souslin tree Entangled linear order full tree Monotonically far Commutative cancellative semigroups Precaliber Dushnik-Miller Coherent tree Lipschitz reduction L-space Uniformly homogeneous Parameterized proxy principle Reduced Power Kurepa Hypothesis Subnormal ideal PFA ccc Intersection model higher Baire space Large Cardinals club_AD Slim tree regressive Souslin tree Diamond-sharp Jonsson cardinal PFA(S)[S] Ostaszewski square Reflecting stationary set Chang's conjecture very good scale Singular cardinals combinatorics Erdos-Hajnal graphs
Category Archives: Invited Talks
Young Researchers in Set Theory, March 2011
These are the slides of a talk I gave at the Young Researchers in Set Theory 2011 meeting (Königswinter, 21–25 March 2011). Talk Title: Around Jensen’s square principle Abstract: Jensen‘s square principle for a cardinal $\lambda$ asserts the existence of a particular ladder … Continue reading
The 11th International Workshop on Set Theory in Luminy
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ESI Workshop on Large Cardinals and Descriptive Set Theory
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Workshop on Set Theory and its Applications, February 2007
These are the slides of a talk given at the Workshop on Set Theory and its Applications workshop (Weizmann Institute, February 19, 2007). Talk Title: Nets of spaces having singular density Abstract: The weight of a topological space X is the … Continue reading
Annual conference of the IMU, May 2006
This talk was given at the 2006 Annual Conference of the Israel Mathematical Union (Neve Ilan, 25-26 May 2006). Talk Title: The Milner-Sauer conjecture and covering numbers Abstract: In their paper from 1981, after learning about Pouzet‘s theorem that any poset of singular cofinality mush contain … Continue reading
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