Paweł Krupski
Paweł Krupski: Remarks and questions on hyperspaces of knots: Borel complexity and local contractibility
05/06/23 10:14
Tuesday, June 6, 2023 17:00
Location: room A.4.1 C-19
Speaker: Paweł Krupski
Title: Remarks and questions on hyperspaces of knots: Borel complexity and local contractibility
Abstract: Remarks and questions on hyperspaces of knots: Borel complexity and local contractibility
Location: room A.4.1 C-19
Speaker: Paweł Krupski
Title: Remarks and questions on hyperspaces of knots: Borel complexity and local contractibility
Abstract: Remarks and questions on hyperspaces of knots: Borel complexity and local contractibility
Paweł Krupski: On the hyperspace of simple closed curves in the plane
13/10/22 14:46
Tuesday, October 11, 2022 17:00
Location: room C11-3.11
Speaker: Paweł Krupski
Title: On the hyperspace of simple closed curves in the plane
Abstract: The Vietoris hyperspace of simple closed curves in the plane will be discussed toward its desirable characterization. In particular, the local contractibility will be shown.
Joint work with Krzysztof Omiljanowski.
Location: room C11-3.11
Speaker: Paweł Krupski
Title: On the hyperspace of simple closed curves in the plane
Abstract: The Vietoris hyperspace of simple closed curves in the plane will be discussed toward its desirable characterization. In particular, the local contractibility will be shown.
Joint work with Krzysztof Omiljanowski.
Paweł Krupski: The complexity of homogeneous continua
27/10/20 16:02
Tuesday, November 3, 2020 17:15
Location: Zoom.us: if you want to participate please contact organizers
Speaker: Paweł Krupski
Title: The complexity of homogeneous continua
Abstract: I will show that the family of all homogeneous continua in the hyperspace of all subcontinua of the cube \(I^n, n=2,3,\ldots ,\omega\), is analytic and contains a topological copy of the linear space \(c_0=\{(x_k)\in {\mathbb{R}}^\omega: \lim x_k=0\}\) as a closed subset. A historical background will also be sketched.
Location: Zoom.us: if you want to participate please contact organizers
Speaker: Paweł Krupski
Title: The complexity of homogeneous continua
Abstract: I will show that the family of all homogeneous continua in the hyperspace of all subcontinua of the cube \(I^n, n=2,3,\ldots ,\omega\), is analytic and contains a topological copy of the linear space \(c_0=\{(x_k)\in {\mathbb{R}}^\omega: \lim x_k=0\}\) as a closed subset. A historical background will also be sketched.