## PhD Colloquia

**June 23, 2022 – HS15, Oskar-Morgenstern-Platz 1 & online (BBB at the following link)****1.15 pm: PhD Colloquium – Katharina Brazda: Biomembranes, curves, and varifolds**

The equilibrium configurations of biological membranes, like the famous biconcave shapes of human red blood cells, can be modeled by minimizing the Canham-Helfrich elastic bending energy. In this talk, I will first introduce this quadratic curvature functional as well as its generalization to heterogeneous biomembranes, where shape couples to composition. Then I will discuss the 1D counterpart of the Canham-Helfrich model, namely elastic curves with modulated stiffness. Coming back to multiphase membranes, I will finally give you an idea about how the variational problem can be addressed with concepts of geometric measure theory, in particular, curvature varifolds.

You can find the poster here.

**May 12, 2022 – HS17, Oskar-Morgenstern-Platz 1, & online**

3 pm: PhD Colloquium – Eva-Maria Hainzl: Generating functions and universal laws on coefficient asymptotics

**April 6, 2022 – Sky Lounge, OMP1 & online**

3 pm: PhD Colloqium – Zhangwen Guo: Generalized path geometries – studying systems of 2nd order ODEs with parabolic geometries

**January 13, 2022 – online**

2 pm: PhD Colloquium – Levi Haunschmid-Sibitz: Random fields, the Wiener Chaos Decomposition and a Stationary Diffusion

**December 16, 2021 – online**

2 pm: PhD Colloquium – Johannes Droschl: Special values of *L*-functions

**December 9, 2021 – online**

2 pm: PhD Colloquium – Randy Llerena: Variational solutions in the dynamical perfect elasto-plasticity

**November 25, 2021 – online **2 pm: PhD Colloquium – Andrea Scaglioni: Numerical approximation of PDEs with random coefficients

**June 24, 2021 – online**2 pm: PhD Colloquium – Steffen Plunder: Programming in Julia: What is multiple dispatch and how it could help in combining different fields of maths

**May 20, 2021 – online **2 pm: PhD Colloquium – Georg Hofstätter: Isoperimetric Inequalities for Minkowski Endomorphisms

**April 15, 2021 – online** **2 pm: **PhD Colloquium – Chiara Novarini: The DAHA of type $GL_n$, Tableaux and Quantum Groups

**March 18, 2021 – online** **2 pm: **PhD Colloquium – Tobias Danczul: An Introduction to the Numerical Approximation of Fractional PDEs

**January 14, 2021 – online****1 pm: **PhD Colloquium – Denis Polly: Discrete Weierstrass-type representations

**December 10, 2020 – online****2 pm:** PhD Colloquium – Laura Kanzler: Kinetic Modelling of Colonies of Myxobacteria

**December 3, 2020 – online** **2 pm: **PhD Colloquium – Stephan Pfannerer-Mittas: Standard Young Tableaux and the Representation Theory of the Symmetric Group

**November 26, 2020 – online****3 pm: **PhD Colloqium – Michael Sedlmayer:

Fantastic Minimax Problems – What Are Solutions and How to Find Them

**June 18, 2020 – online2 pm:** PhD Colloquium – Benedict Schinnerl: Singularity-Theorems from Non-Trivial Topology

**May 14, 2020 – online****2 pm:** PhD Colloquium – Valerie Roitner: Pattern Avoidance in Lattice Paths

Please find the slides here.

**March 4, 2020 – HS11 (Hauptgebäude TU Wien)****1 pm:** PhD Colloquium – Lukas Fertl: An introduction to sufficient dimension reduction, conditional variance estimator

**January 15, 2020 – Sky Lounge, OMP13 pm: **PhD Colloqium – Axel Böhm: How machines learn or minimizing training loss

**December 4, 2019 – Sky Lounge, OMP1****3 pm:** PhD Colloqium – Philipp Kniefacz: Sharp Sobolev Inequalities via Projection Averages

**October 23, 2019 – Sky Lounge, OMP 1**

**2 pm:**VSM Info Day

**3 pm:**PhD Colloquium – Alexander Pichler: An introduction to virtual element methods for the Helmholtz problem

**June 19, 2019 – Sky Lounge, OMP 1**

**2 pm:**PhD Colloquium – David Melching: How does steel deform? An introduction to elastoplastic materials and damage

**May 22, 2019 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Noema Nicolussi: An Introduction to Spectral Theory of Laplacians on Graphs

**April 10, 2019 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Giancarlo Castellano: The Importance of Being Totally Disconnected

**January 16, 2019 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Denise Schmutz: Three-dimensional Motion Reconstruction from Projection Data

**December 5, 2018 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Hana Melánová: Geometric Invariants of Surfaces as Natural Objects

**November 14, 2018 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Florian Aigner: An Introduction to Alternating Sign Matrices (A Combinatorial Story of Missing Bijections)

**October 31, 2018 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Mateusz Piorkowski: When Waves Behave Like Particles

**June 6, 2018 – HS10, OMP 1**

**1.45 pm:**PhD Colloquium – Daniel Scherl: What the heck is TQFT?

**May 16, 2018 – HS10, OMP 1**

**1.45 pm:**PhD Colloquium – Gianluca Favre: An introduction for a weak formulation. Why do we look for a weak solution?

**April 18, 2018 – HS16, OMP 1**

**1.30 pm:**PhD Colloquium – Paola Lopez: An Adelic Approach to Number Theory

**March 21, 2018 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Manjil Saikia: Perfect Matchings and Tiling Problems

**November 15, 2017 – SR13, OMP 1**

**3 pm:**PhD Colloquium – Franz Berger: The d-bar-Neumann problem in several complex variables

**October 4, 2017 – Sky Lounge, OMP 1**

**1 pm:**VDS Mathematics Info Day

**2 pm:**PhD Colloquium – Tomack Gilmore: Thombus Tilings and Electrostatistics

**June 7, 2017 – HS05, OMP 1**

**3.15 pm:**PhD Colloquium – Diana Carolina Montoya: Cardinal Invariants of the Continuum and the Structure of the Real Line

**May 17, 2017 – HS05, OMP 1**

**3.15 pm:**PhD Colloquium – Gabriel Strasser: An Introduction to Symbolic Dynamics

**April 5, 2017 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Hongyi Chu: An Introduction to Multicategories and Higher Categories

**March 15, 2017 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Sascha Biberhofer: An Introduction to Arithmetic Groups

**January 18, 2017 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Anastasiia Zalashko: Introduction to Optimal Transport

**December 14, 2016 – SR3, OMP 1**

**3 pm:**PhD Colloquium – Christopher Chiu: Introduction to the Nash Problem

**November 23, 2016 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Robin Sulzgruber: An Introduction to Algebraic Combinatorics

**October 19, 2016 – Sky Lounge, OMP 1**

**3 pm:**PhD Colloquium – Melanie Graf: The singularity theorems of Lorentzian geometry