• Vortragende: Mara Pompili
• Wo: im Seminarraum 11.33 in der Heinrichstraße 36
• Wann: Am 12. Juni 2026 von 12:00 bis 13:00

• Vortragende: Eranda Dragoti-Cela
• Wo: im AE06 in der Steyrergasse 30
• Wann: Am 12. Mai 2026 von 11:45 bis 12:45

Abstract: Combinatorial optimization lies at the intersection of mathematical beauty and computational necessity. 
At its core, it asks a simple question: how can we select the "best" subset or arrangement from a finite, yet astronomically large, set of possibilities? 

In classical models, we typically optimize a single aggregated objective, such as finding the shortest route for a delivery truck or themost economical way to connect a network.A central theme in this field is the distinction between problems that are computationally tractable and those that are computationally hard. While "easy" problems like Minimum Spanning Trees allow for fast, polynomial-time algorithms, "hard" problems like the travelling salesperson problem become exponentially difficult as they grow. A key area of our research involves identifying specific structural properties of the input that can render these hard problems tractable.

The mathematical definition of an "optimal" solution often shifts when we consider the individual subjects involved. A solution that is mathematically optimal for the group can create large discrepancies in utility for individuals, leading to outcomes that are perceived as undesirable or fundamentally unfair. The search for the "best" solution is expanded to include fairness as a vital second objective. We investigate how to incorporate various fairness measures, such as egalitarian equity or envy-freeness, without losing the computational tractability that makes a solution useful in practice. 

• Vortragende: Nesibe Ayhan
• Wo: im Seminarraum 11.33 in der Heinrichstraße 36
• Wann: am 15. April 2026 von 12:00 bis 13:00

Abstract: Why do ocean waves travel so far without fading? And what makes a wave suddenly break? Behind these questions, there is a mathematical story. This talk explores water waves through the lens of nonlinear dispersive equations—the mathematics that describes how waves move, interact, and sometimes collapse. I will introduce my research on the Camassa-Holm equation, touching on concepts like wave breaking and solitons, while also sharing my personal journey through academia as a PhD student.

• Vortragende: Noy Soffer-Aranov
• Wo: im Seminarraum für Analysis und Zahlentheorie (NT02008), in der Kopernikusgasse 24
• Wann: 10. März 2026 von 11:45 bis 12:45