Alexander Helber
ahelber.bsky.social
Alexander Helber
@ahelber.bsky.social
PhD student at the Chair of Operations Research @ RWTH Aachen
Interpreting the problem as a game between a leader who has to remove vertices and a follower that connects the remaining graph, eventually the following formulation results. It contains only constraints that enforce a removal of vertices such that the remaining graph has at least k components.
October 1, 2025 at 12:43 PM
The naive integer programm is not so great - weak LP relaxation and highly symmetric
October 1, 2025 at 12:43 PM
In the k-vertex cut problem, the goal is to select as few vertices as possible such that the remaining graph consists of at least k connected components
October 1, 2025 at 12:43 PM
Lunch seminar at the Center of Algorithmics and Optimization (RWTH Aachen): Fabio Furini held a talk about Graph Disconnection Games
October 1, 2025 at 12:43 PM
Its the small wrench on the top right, but i am on mobile only rn. Pretty sure i have downloaded bibtex citations from at least some Informa Journals before, but it always is a pain to find (luckily zotero does that for me nowadays)
September 12, 2025 at 5:14 PM
Maybe i misunderstand, but isn't this what you ask?
September 12, 2025 at 4:39 PM
Imaging having the answer before you start implementing :)
September 4, 2025 at 2:50 PM
The master in Bielefeld
September 4, 2025 at 2:49 PM
Presentation by David Treviño about Humanitarian Logistics at Doctors Without Borders today, organized by Lorena Reyes Rubiano at the Chair of Data and Business Analytics @ RWTH Aachen
June 25, 2025 at 12:38 PM
Journal article (based on a talk) from 1966, could replace a few words and post on Linkedin as is
June 3, 2025 at 7:13 AM