[Turkmath:7447] Seminer-Hossein Movasati (IMPA, Brasil)-Bilecik-7 Nisan

[Ilker Inam]

Değerli Liste Üyeleri,



Bilecik Şeyh Edebali Üniversitesi Fen Fakültesi Matematik Bölümü Cebir ve
Sayılar Teorisi Anabilim dalı öğretim üyeleri tarafından kurulan
“Bilecik Algebra & Number Theory (BANT)” grubu tarafından organize
edilen seminer serilerinin yeni konuşması* 7 Nisan 2026 Salı günü* online
olarak zoom üzerinden düzenlenecektir.


Etkinliğin web sitesi: https://bilecikalgebranumbertheory.github.io/ dir.



Sıradaki konuşmacı IMPA'nin (Brezilya) değerli öğretim üyesi
* Hossein Movasati* olacaktır ve konuşma bilgileri aşağıda yer almaktadır.



*Konuşma Adı:*  *Hasse-Witt invariants of Calabi-Yau varieties*

*Özet:* We define the Hasse-Witt invariant of Calabi-Yau varieties in two
different ways. The first method is through the Cartier operator and the
second method is through the theory of Calabi-Yau modular forms. We
conjecture that these two definitions are equivalent and provide many
examples of Calabi-Yau varieties in support of this conjecture. The talk is
based on https://arxiv.org/abs/2603.03055


*Tarih: 07/04/2026 *

*Saat: 17:00 İstanbul / 16:00 Berlin / 15:00 Londra / 23:00 Seoul/ 11:00
Rio de Janeiro / 01:00 Sydney(+1)*



Katılım için linkte yer alan formun doldurulması yeterlidir,

Form linki: https://forms.gle/B4m29Xy29MfA6j4Y6


Zoom linki formu doldurduktan sonra email ile paylaşılacaktır. Etkinlik
posteri ekte yer almaktadır.



Saygılarımla,

Prof.Dr. İlker İnam

Düzenleme komitesi adına.





—————————————————————



Dear list members,



The "Bilecik Algebra & Number Theory (BANT)" group, founded by the faculty
members of the Department of Algebra and Number Theory at Bilecik Seyh
Edebali University's Faculty of Science, will host its next semester on *Tue,
April 07, 2026*. The event will be conducted online via Zoom.

The website for the event is:  https://bilecikalgebranumbertheory.github.io/
.



The inaugural speaker will be *Hossein Movasati*, a faculty member at IMPA,
Brasil. Details of the presentation are provided below.



*Title: **Hasse-Witt invariants of Calabi-Yau varieties*

*Abstract: *We define the Hasse-Witt invariant of Calabi-Yau varieties in
two different ways. The first method is through the Cartier operator and
the second method is through the theory of Calabi-Yau modular forms. We
conjecture that these two definitions are equivalent and provide many
examples of Calabi-Yau varieties in support of this conjecture. The talk is
based on https://arxiv.org/abs/2603.03055



*Date: April 07, 2026, Tuesday*

*Time: **17:00 İstanbul / 16:00 Berlin / 15:00 Londra / 23:00 Seoul/ 11:00
Rio de Janeiro / 01:00 Sydney(+1)*



To participate, simply fill out the form at the following link:

Form Link: https://forms.gle/B4m29Xy29MfA6j4Y6



The Zoom link will be shared via email after filling out the form. The
event poster is attached.



Best regards,

Prof.Dr. Ilker Inam

On behalf of the organizing committee
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