David chodounsky academy of sciences, czech republic jindric h zapletal university of florida academy of sciences, czech republic march 14, 2019 abstract let i be an f ideal on natural numbers. David chodounsky the topological space consisting of free ultra lters on a cardinal is denoted. Stories can be submitted by the alumnus or a faculty member at the alumni story submission page. David chodounsky, covering properties of lters and the mathias. The work presented is joint research with david buhagiar from the university of malta. Facts about david chodounsky the meaning of the name. David chodounsky born june 25, 1984 is an american alpine skier and a member of the united states ski teams alpine skiing program. Ski and snowboard association ussa encompasses all athletes that share a passion for skiing and snowboarding. This problem can be also formulated in the language of boolean algebras.
We show that the existence of a homeomorphism between. We characterize the ultra lters which are generic over the model lr for the poset of i positive sets of natural numbers ordered by inclusion. California contributes the most athletes to this years olympic team, followed by colorado and minnesota figure 2. Institute of mathematics institute of computer science. Integral functionals that are continuous with respect to. We give topological characterizations of lters fon. His technical disciplines in the sport of alpine skiing include the slalom and giant slalom events. From local ski hills to the pyeongchang olympics, the u. The big snow sports here are hockey, crosscountry skiing, and curling. Legend click on the circle to filter events switch to list view click on the circle to filter events switch to list view. His specialist disciplines were the slalom and giant slalom events.
The theory of relative topological properties was introduced by a. Pdf in this thesis we study the concepts of relative topological properties and present some basic. July 14 17, 2009 brno, czech republicbrno, czech republic hosted byhosted by faculty offaculty of electrical engineering and communicationelectrical engineering and communication. Topology and its applications 158 2011 11491156 forcing properties of ideals of closed sets, with marcin sabok, j. If we want to emphasize the space or the topology we use the. Relative topological properties, uncg nc docks north. Winter school 2012 todd eisworth, stefan geschke, k. Set theory and topology session abstracts 1720 september 2018. Winter school in abstract analysis, section topology 2012. Prague symposia on general topology and its relations to modern analysis and algebra. The th international workshop on set theory took place at the cirm, luminy, september 29 october 3, 2014. We explore what makes each skier and rider a champion with stories from the u.
You see this reflected in the athletes we send to the olympics. These properties have interesting consequences for partitiontype forcings and anticliques in open graphs. Summer conference on topology and its applications. The encyclopedia of general topology, edited with j. I will present the proof of this theorem, with as many details as possible. Olympic alpine ski team in the 2014 winter olympics in sochi, russia and the 2018 winter olympics in pyongchang, south korea. Twelfth symposium on general topology and its relations to modern analysis and algebra. We give examples which answer some open questions and contract some conjectures in the literature. We outline a portfolio of novel iterable properties of c.
Mathias forcing and combinatorial covering properties of filters david chodounsky, du san repov s, and lyubomyr zdomskyy abstract. On the set l we will also use the topology of the real line denoted. There are no ppoints in silver extensions springerlink. Michael ankeny and nolan kasper will also have the opportunity to. These special issues aim to honour his memory by representing both the many areas of mathematics his research has in. It was in zahradky, in a castle that then belonged to the charles university, a castle that later unfortunately burnt. Mathias forcing and combinatorial covering properties of filters. The space x is rst countable separable if and only if xis rst countable separable. Mirna dzamonja sorbone, witold marciszewski university of warsaw, barnabas farkas kurt goedel institute and david chodounsky czech academy of science. Topology and its applications 2 2016 230237 contents lists available at sciencedirect topology and its applications. A minicourse on descriptive graph combinatorics was given by andrew marks. David chodounsky my main research interests are in forcing, set theory of the reals and in nitary combinatorics, cardinal invariants of the continuum and ultra lters on countable sets.
Young researchers in set theory workshop 2011 uni bonn. Preliminaries we deal with cechstone compacti cations of discrete spaces exclusively. The program with titles and slides is available here this year the tutorial lectures each tutorial comprising of several 50 minute lectures were devoted to advanced topics of combinatorial set theory. The topological space consisting of free ultra lters on a. Research faculty of mathematics and computer science. Toposym is a series of international topology conferences held in prague, czech republic in a. Following 10 we say that a family u of subsets of a set xis.
Freeskiing, next to kids winning a nastar medal, landing their first cork 7 or joining a club team. Since minnesota has no mountains, alpine events are not our strength though lindsey vonn is from st. While progressing towards my phd, i concentrated mainly on the so called katowice problem, i. Our main focus is on various versions of relative normality, relative regularity and relative compactness. Jerry vaughan university of north carolina at greensboro. Bohuslav balcar, david chodounsky, jonathan verner, jan stary, lajos soukup, jaroslav supina, piotr borodulinnadzieja twelfth symposium on general topology and its relations to modern analysis and algebra, toposym 2016, 25. Solecki, the coset equivalence relations and topologies on sub. Math encounters blog i stumbled upon some math today.
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