BGSMath Scientific Meeting

Jornada Científica BGSMath
In June 8 will take place the annual BGSMath Scientific Meeting. The external members of the Advisory Scientific Committee will be present at the meeting.
The session will take place at IEC, between 10 a.m. and 1 p.m.
In the morning there will be two mathematical talks, given by Ulrike Tillmann (Oxford) and Marino Arroyo (UPC).
In the afternoon there will be a plenary meeting of the Scientific Advisory Committee.



10.00 Presentation
10.15 – 11.15 Ulrike Tillmann (University of Oxford)

Cobordism theory: old and new

The concept of cobordisms has played an important role in the study of manifolds. Thom’s theorem in the 1950s, which computed the cobordism classes via homotopy theory, was a milestone in the classification of manifolds. In the late 1980s cobordisms played a central part in Atiyah and Segal’s axiomatic approach to topological quantum field theory.

These two seemingly very different appearances of cobordisms have more recently been brought together, one informing on the other.

11.15 – 11.45 Coffe break
11.45 – 12.45 Marino Arroyo (UPC)

Mathematical modeling of the motility of euglena cells: shape transformations, force generation, and the interaction with the environment

Euglenids are unicellular aquatic organisms capable of moving either by beating a flagellum or by executing dramatic and harmonious shape changes, whose function still remains unclear. These shape changes are accomplished thanks to a complex structure underlying the plasma membrane, made of interlocking proteinaceous strips, microtubules, and motor proteins. Based on simple observations of euglena under the microscope, I will describe the mechanisms by which the sliding of pellicle strips leads to shape control. Then, I will describe models to understand how these shape deformations lead to cell locomotion. I will discuss how, combining this mathematical modeling and experiments, it is possible to shed new light into the biology of euglena and also design new bio-inspired materials.