PhD Seminar Series

Welcome to the PhD Seminar Series at RICAM. Our seminar series aims to provide a platform for PhD students to present their research, share ideas, engage in discussions with colleagues, and perhaps prepare yourselves for your PhD defenses and other presentations.

The seminar is held on Mondays, twice a month, from 2:00 PM to 3:00 PM.

This schedule is for the Winter Semester 2024-2025:

PS: Don't hesitate to contact us if you're interested in giving a talk.

Date: October 7, 2024

Time: 2:00 PM–3:00 PM

(30-40 min for the talk. Followed by: Discussion time and, of course, snacks and coffee!)

Location: Room 416-2, at RICAM

Speaker: Stefan Tyoler (RICAM)

Title: Adaptive mesh refinement with non-matching Isogeometric multi-patch domains

Description:

In 2008, Tom Hughes et al. introduced the concept of Isogeometric Analysis (IgA) with the goal of utilizing B-splines to unify design (CAD) and numerical analysis. Another advantage of employing B-splines is the enhanced smoothness in the approximation of numerical solutions. In this talk, we discuss arising challenges by combining the concept of IgA with local mesh refinement, which is crucial in the approximation of solutions of reduced regularity. Specifically, we discuss the treatment of emerging hanging nodes and introduce an efficient domain decomposition solver.

Bio Stefan Tyoler: I am a PhD student in the group "Computational methods for PDE's" under the supervision of Stefan Takacs from the NuMa Institute of JKU. The topic of my PhD is the efficient implementation of a local mesh refinement strategy in the context of multi-patch Isogeometric Analysis (IgA). I am 28 years old and I was born here in Linz. In my freetime I like to go hiking or skiing in the mountains (obviously) and also bouldering or playing videogames at home :-).

Date: September 09, 2024

Speaker: Yisen Wang (RICAM)

Title: WZ-Pair in Combinatorial Identities

Description: Wilf-Zeilberger pairs are fundamental in the algorithmic theory of Wilf and Zeilberger for computer-generated proofs of combinatorial identities. In this talk, we will introduce how it works to prove some known identities and also helps to discover new identities. It interests us that the universal structure of WZ-pairs in the summation case as well as the differential case.

Bio Yisen Wang: I am a PhD student co-supervised by Christoph Koutschan (RICAM, Austria) and Shaoshi Chen (AMSS, China). My research interests are symbolic computation (symbolic integration and summation) and combinatorics (Wilf-Zeilberger method).

Date: September 23, 2024

Speaker: Minha Anees (RICAM)

Title: Enhancing the efficacy of radiofrequency ablation: developing in-silico human model for improved treatment outcomes.

Description:

Radiofrequency ablation (RFA) is a minimally invasive procedure used to treat abnormal electrical signals that cause cardiac arrhythmias. During RFA, the tip electrode of a catheter delivers radiofrequency current at a frequency of 500 kHz. This electrical current flows through the resistive volume, which includes myocardial tissue and blood, and reaches a dispersive patch positioned on the patient’s skin, typically on the back or thigh. In this talk, I will present the development of highly realistic in-silico model of human patient, integrating both anatomy and physiology to enhance the efficacy of the RFA procedure, with the goal of improving treatment outcomes and optimizing procedural parameters.

Bio Minha Anees: I am a PhD student supervised by Argrios Petras and co-supervised by Luca Gerardo-Giorda. My research focuses on mathematical modelling, particularly in radio frequency ablation (RFA), using imaging data. My interests include developing models that simulate the physical processes involved in RFA, with the goal of improving accuracy and outcomes in medical treatments.

How to Participate:

To subscribe to the seminar, please follow the instructions below:

1. Access the subscription link: https://list.ricam.oeaw.ac.at/lists/listinfo/phdmail

2. Fill in the required information in the "Subscribing to PhDmail" section:

• Enter your email address

• Enter your name

• Create a password

3. Click the "Subscribe" button at the bottom of the section.

4. You will receive a confirmation email from (phdmail-request(at)ricam.oeaw.ac.at) to the email address you provided.

5. To confirm your subscription, simply reply to the confirmation email without writing anything and keep the subject line unchanged.

Once you have completed these steps, you will be successfully subscribed to our PhD Seminar Series mailing list.

If you have any questions or need further information, please feel free to reach out to us at

Email: phdseminar(at)ricam.oeaw.ac.at

Office: Room 409, or Room 431: (RICAM, SP2, 4^th floor).

We look forward to your participation!

Organizers: Sumaia Saad Eddin and Argyrios Petras