Workshop on Ordered Vector Spaces and Positive Operators
Wuppertal, March 29 - April 01, 2023
Location:
Bildungsstätte Bundeshöhe
Bundeshöhe 7
42285 Wuppertal
Recent information for the positivity community:
- Online stream and recording of the lecture Ordered Banach Spaces and Positive Operators in Wuppertal, Germany (4 April - 13 July 2023)
- Workshop on Recent Advances in Banach Lattices in Banff, Canada (7-12 May 2023)
- Workshop Functional Analysis and Operator Theory South Africa 2023 in Limpopo, South Africa (3-7 July 2023)
- Conference Positivity XI in Ljubljana, Slovenia (10-14 July 2023)
Organizers
- Sahiba Arora (Dresden)
- Jochen Glück (Wuppertal)
- Anke Kalauch (Dresden)
Currently confirmed participants
- Patrizio Bifulco (Hagen) - slides
- Noa Bihlmaier (Tübingen)
- Florian Boisen (TU Dresden) - slides
- Leon Duensing (Tübingen)
- Chun Ding (Leiden) - slides
- Roman Drnovšek (Ljubljana) - slides
- Bálint Farkas (Wuppertal)
- Patrick Hermle (Wuppertal)
- Julian Hölz (Wuppertal)
- Marcel de Jeu (Leiden) - slides
- Xingni Jiang (Sichuan University) - slides
- Marko Kandić (Ljubljana) - slides
- Sebastian Kaul (TU Dresden)
- Elena Klimova (HTW Dresden) - slides
- Marjeta Kramar Fijavž (Ljubljana) - slides
- Rainer Nagel (Tübingen)
- Kieran Power (Kent) - slides
- Agnes Radl (University of Applied Sciences Fulda) - slides
- Pavan Raickwade (IIT Madras)
- Janko Stennder (TU Dresden) - slides
- Onno van Gaans (Leiden)
- Cormac Walsh (INRIA, Palaiseau) - slides
- Martin Weber (TU Dresden) - slides
Schedule
Wednesday, March 29
| Afternoon | Arrival | |
| 18:00 | Dinner | |
| 20:00 - 22:00 | Updates | Latest developments in ordered vector space theory |
Thursday, March 30
| 08:00 - 09:00 | Breakfast | |
| 09:15 - 09:45 | Agnes Radl | Embeddability of positive matrices |
| 10:00 - 10:30 | Marjeta Kramar Fijavž | Relatively uniform spectral theory for operators on vector lattices |
| 10:30 - 11:00 | Coffeee Break | |
| 11:00 - 11:45 | Patrick Hermle | Uniformly ergodic semigroup representations on Banach lattices |
| 12:15 - 13:45 | Lunch | |
| 14:00 - 14:30 | Cormac Walsh | Order and metric structures on cones |
| 14:45 - 15:30 | Kieran Power | Compactification of Symmetric Cones under the Hilbert Metric |
| 15:30 - 16:00 | Coffee Break | |
| 16:00 - 16:30 | Julian Hölz | Uniform almost periodicity of Banach lattice homomorphisms |
| 16:45 - 17:15 | Sebastian Kaul | Criteria for positive spectral radii on Banach lattices and partially ordered Banach spaces |
| 17:25 - 18:00 | Noa Bihlmaier | Köhler-Semigroups and the Cyclicity Problem |
| 18:00 | Dinner | |
| 20:00 - 21:30 | Group discussions | Open problems in positive operator theory and new methods to engage them |
Friday, March 31
| 08:00 - 09:00 | Breakfast | |
| 09:15 - 10:00 | Roman Drnovšek | The Huijsmans–de Pagter problem in ordered Banach algebras |
| 10:00 - 10:30 | Coffee Break | |
| 10:30 - 11:15 | Marcel de Jeu | Free objects in algebraic and analytic categories |
| 11:30 - 12:00 | Chun Ding | Direct limits in categories of normed vector lattices and Banach lattices |
| 12:15 - 13:45 | Lunch | |
| 14:00 - 14:35 | Florian Boisen | Duality of Riesz* homomorphisms and Interval Preserving Operators in Ordered Vector Spaces |
| 14:45 - 15:30 | Janko Stennder | Algebraic structures in pre-Riesz spaces |
| 15:30 - 16:00 | Coffee Break | |
| 16:00 - 16:30 | Xingni Jiang | Positive dilation in order integrals |
| 16:45 - 17:30 | Marko Kandić | Prime ideals in vector lattices |
| 18:00 | Dinner | |
| 20:00 - 21:30 | Group discussions | New challenges in ordered vector spaces and positive operators |
Saturday, April 1
| 08:00 - 09:00 | Breakfast | |
| 09:15 - 10:00 | Martin Weber | Cesàro Sequence Vector Lattices. Duals and Ideals of Finite Elements |
| 10:15 - 10:45 | Elena Klimova | Goursat-type nonlocal problem for a fourth-order loaded equation |
| 11:00 - 11:30 | Patrizio Bifulco | Comparing the spectrum of Schrödinger operators on quantum graphs |
| 12:15 - 13:45 | Lunch |