MAC - Mathematical Association of Cambodia

សិក្ខាសាលាខែឧសភា៖ "An introduction to modular forms”



វាគ្មិន៖ Sovanpiseth Soeun
អ្នកសម្របសម្រួល៖ Vanny Doem
កាលបរិច្ឆេទ៖ ថ្ងៃសៅរ៍ ទី30​ ខែឧសភា ឆ្នាំ2026
វេលាម៉ោង៖ 8:00-9:00 pm (Cambodia Time)
ចូលរួមដោយសេរីតាមរយៈ Google Meet៖
https://meet.google.com/hru-vjht-srb

Abstract: Modular forms are fundamental objects in number theory and played a pivotal role in the proof of Fermat's Last Theorem. This talk begins with Ramanujan’s identities and conjectures regarding the Delta function coefficients. We then introduce the modular group, its action on the upper half-plane, the foundational theory of modular forms, and Hecke operators. Finally, we demonstrate how Ramanujan’s identities naturally arise from Hecke theory and outline the connection between modular forms and the proof of Ramanujan’s conjectures.


សិក្ខាសាលាប្រចាំខែ MAC ក្នុងឆ្នាំ 2026៖
https://sites.google.com/view/mac-cambodia/programs/webinars/talk-2026

ចូលរួម Telegram MAC៖
https://t.me/wemacinfo

សូមអរគុណ !

ដំណឹងបឋម៖ សិក្ខាសាលាគណិតវិទ្យាចំនួនពីរថ្ងៃផ្ទាល់ឆ្នាំ 2026 នឹងរៀបចំឡើងនៅថ្ងៃទី 14-15 ខែវិច្ឆិកា លើប្រធានបទ Representation Theory of Finite Groups ហើយការបើកពាក្យចុះឈ្មោះ គឺនៅដើមខែតុលា ។

លម្អិត៖ https://sites.google.com/view/mac-aim-rt26

[ MAC សិក្ខាសាលាប្រចាំខែឧសភា ]

សិក្ខាសាលាខែមេសា៖ "Chen-Ricci inequalities in the theory of statistical manifolds"

[GSS's Monthly Mathematics Seminar on 30 April 2026, 8:00 - 9:00 pm]

Title: Chen-Ricci inequalities in the theory of statistical manifolds
Speaker: Mean Rous, PhD Fellow
Moderator: Monyrattanak Seng, PhD

Abstract: The statistical manifold was formally introduced by Shun-ichi Amari in the mid-1980s and, in particular, is a main field of study within information geometry. In this talk, we will begin with the basic concepts of statistical manifolds and submanifolds. Then we will discuss our main topic on the Chen-Ricci inequalities for statistical submanifolds and their applications to the study of doubly minimal and minimal statistical submanifolds with respect to the Levi-Civita connection.

Joining the talk: https://meet.google.com/hru-vjht-srb

Thank you everyone, and see you all in the talk.

[ MAC-GSS សិក្ខាសាលាប្រចាំខែមេសា ]

សិក្ខាសាលាខែមីនា៖ "Multimodal federated learning in air quality monitoring under heterogeneous resource constraints”



វាគ្មិន៖ Kimsie Phan
អ្នកសម្របសម្រួល៖ Sreyneat Sun
កាលបរិច្ឆេទ៖ ថ្ងៃអាទិត្យ ទី29 ខែមីនា ឆ្នាំ2026
វេលាម៉ោង៖ 8:00-9:00 pm (Cambodia Time)
ចូលរួមដោយសេរីតាមរយៈ Google Meet៖
https://meet.google.com/hru-vjht-srb

Abstract: Air quality monitoring is essential for environmental health, but centralized approaches face challenges such as high communication costs, latency, and privacy risks. Single-modality models using only tabular or image data fail to fully capture complex pollution patterns. To address this, we propose a Multimodal Federated Learning framework that integrates tabular and visual data via a lightweight model (MobileNetV3Small + MLP), deployed on heterogeneous edge devices such as Raspberry Pi 5 and Jetson Orin Nano. The proposed approach improves prediction performances while ensuring privacy, scalability, and efficient edge deployment.


សិក្ខាសាលាប្រចាំខែ MAC ក្នុងឆ្នាំ 2026៖
https://sites.google.com/view/mac-cambodia/programs/webinars/talk-2026

ចូលរួម Telegram MAC៖
https://t.me/wemacinfo

សូមអរគុណ !

[ MAC សិក្ខាសាលាប្រចាំខែមីនា ]

សិក្ខាសាលាខែកុម្ភៈ៖ "Basic homotopy construction of extraordinary (co)homology theories​”



វាគ្មិន៖ Makara Tha
អ្នកសម្របសម្រួល៖ Vanny Doem
កាលបរិច្ឆេទ៖ ថ្ងៃសៅរ៍ ទី28 ខែកុម្ភៈ ឆ្នាំ2026
វេលាម៉ោង៖ 8:00-9:00 pm (Cambodia Time)
ចូលរួមដោយសេរីតាមរយៈ Google Meet៖
https://meet.google.com/hru-vjht-srb

Abstract:
The development of extraordinary/generalized (co)homology theories represents a fundamental expansion of algebraic topology beyond the classical (co)homology theories. The main purpose of this talk is to introduce a stable space called a spectrum and to study how such objects determine generalized (co)homology theories. We further demonstrate that the inverse of this statement is also true, which is well-known as the Brown representability theorem.


សិក្ខាសាលាប្រចាំខែ MAC ក្នុងឆ្នាំ 2026៖
https://sites.google.com/view/mac-cambodia/programs/webinars/talk-2026
ចូលរួម Telegram MAC៖
https://t.me/wemacinfo
សូមអរគុណ !

[ MAC សិក្ខាសាលាប្រចាំខែកុម្ភៈ ]