[Turkmath:6065] Gebze Teknik Üniversitesi Matematik Bölümü Genel Seminerleri

[GTU Mathematics]

Sayin Liste Uyeleri,

14 Nisan Cuma günü saat 14:00'te* Dr. Olha Ivanyshyn Yaman *( Hartree
Centre, STFC, Birleşik Krallık ) *" **Boundary integral equation methods
for inverse problems with generalized impedance boundary condition*
*"* başlıklı
bir seminer verecektir. Seminerin detayları aşağıda olup tüm ilgilenenler
davetlidir.

Seminer için Microsoft Teams platformu kullanılacaktır. Seminere katılmak
için aşağıdaki linki kullanabilirsiniz:

https://teams.microsoft.com/l/meetup-join/19%3a0ae91f7b86a24e8fa1d818a6f74b22a1%40thread.tacv2/1681046632486?context=%7b%22Tid%22%3a%22066690f2-a8a6-4889-852e-124371dcbd6f%22%2c%22Oid%22%3a%22a343f6fd-86f8-4abe-95cf-3c7f4ad5f0ca%22%7d


Seminere bağlanırken aşağıdaki pencereyi görürseniz,
[image: image.png]

lütfen* Allow (İzin ver) *seçeneğine tıklayınız. Bu sizin toplantıya kamera
ve mikrofonunuzla bağlanabilmenizi sağlar.


Seminere giriş yaparken lütfen gerçek ve tam adınızı kullanınız.


Konuşmadığınız sürece lütfen mikrofonunuzu kapalı tutunuz.

Saygılarımızla.


Dear all,

*Dr. **Olha Ivanyshyn Yaman* from Hartree Centre, STFC (United Kingdom) will
give a talk titled *"*  *Boundary integral equation methods for inverse
problems with generalized impedance boundary condition* *”* on April 14th
at 14:00. All interested are invited.


Abstract:

The generalized impedance boundary conditions (GIBC's) are used to model
obstacles with corrugated surfaces or obstacles with a thin layer of
coating and they are often employed in simplifying the analytical solutions
or reducing the cost of numerical computations for problems involving
complex structures.

We consider the reconstruction of surface impedance functions of a
sound-soft three-dimensional obstacle coated with a thin layer of a
penetrable material from few far field data at a fixed frequency.  The
technique  we present is based on an iteratively regularized Newton-type
method, which combines ideas of both iterative and decomposition methods.
Employing a boundary integral equation approach the inverse problem is
proved to be equivalent to a system of nonlinear integral equations.

In the second part of the talk we present boundary integral equations
methods to direct and inverse problems with GIBC for planar linear
viscoelasticity. The feasibility of the techniques is illustrated by
numerical examples.


Microsoft Teams platform will be used for the seminar. To join the seminar,
please use the following link:

https://teams.microsoft.com/l/meetup-join/19%3a0ae91f7b86a24e8fa1d818a6f74b22a1%40thread.tacv2/1681046632486?context=%7b%22Tid%22%3a%22066690f2-a8a6-4889-852e-124371dcbd6f%22%2c%22Oid%22%3a%22a343f6fd-86f8-4abe-95cf-3c7f4ad5f0ca%22%7d


If you see the following window when connecting to the seminar,
[image: image.png]

please select *Allow**.* Then you will be able to use your microphone and
camera during the seminar.


Please use your real and complete name when you enter the system.


Please switch your microphone off unless you are speaking.


Sincerely
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