visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

An Introduction to Cohomology groups

2022.01.21 14:57

admin 조회 수:2004

날짜 2022-01-26 13:00 
일시 Jan. 26th (Tue), 13:00 
장소 E6 #1501 
연사 Dr. Hyojin Jung (NIMS) 

 

Physics Seminar

 

 

 

 

 

An Introduction to Cohomology groups

 

 

Dr. Hyojin Jung

NIMS

 

Jan. 26th (Tue), 13:00, E6 #1501

 

 

 

Simplicial homology groups of Δ-complexes are quite directly treated as a tool of counting n-dimensional spheres. However, when we consider its dual space called cohomology groups, it's not easy to find geometric meaning intuitively. In this talk, we introduce simplicial cohomology groups of Δ-complexes giving geometric interpretation. Additionally, we show another cohomology groups, the de Rham cohomology groups with the exterior differentiation which is regarded as the extension of gradient, curl, and divergence of vector calculus on R^3. Through these approaches we can improve comprehension of cohomology groups.

 

 

Department of Physics, KAIST

 

번호 날짜 장소 제목
164 2022-04-14 16:00  E6 1323  (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency
163 2024-08-16 11:00  E6 1322 (no zoom broadcasting)  Cathodoluminescence for nanophotonics: Applications to plasmonic bandgap materials and perovskite semiconductors file
162 2022-10-04 16:00  E6 #2501  Distinguishing 6d (1, 0) SCFTs
161 2022-03-29 10:00  E6 #1501/zoom, E6 #2502/zoom  Non-reciprocal phase transitions file
160 2022-03-31 10:00  E6 #1501/zoom  Weiss fields for Quantum Spin Dynamics file
159 2022-01-25 15:00  E6 #1501/online  Emulating twisted double bilayer graphene with a multiorbital optical lattice file
158 2022-10-24 16:00  E6 #1501(공동강의실)  Physics Colloquim(Fall 2022) file
157 2022-08-01 10:00  E6 #1501 & Zoom  [Update 세미나 영상] James Webb Space Telescope & OTE Commissioning
156 2022-07-14 14:15  E6 #1501 & Zoom  Hund and electronic correlations in ruthenium-based systems
155 2022-07-14 15:00  E6 #1501 & Zoom  Pure two-dimensional quantum electron liquid and its phase transition
154 2022-07-14 13:30  E6 #1501 & Zoom  Electronic structure and anomalous transport properties of topological materials by first principle calculation
153 2022-01-11 15:00  E6 #1501  Ultrafast optical studies on CDW collective modes of the Weyl-CDW (TaSe4)2I file
» 2022-01-26 13:00  E6 #1501  An Introduction to Cohomology groups file
151 2022-04-13 10:30  E6 #1323/zoom  Harnessing topology and correlations from singularities in 3d-kagome metals
150 2023-04-28 11:00  E6 #1323  Tkachenko wave: From the modern field theory viewpoint
149 2023-05-17 14:00  E6 #1323  Optical Response in the multilayer thin films
148 2022-10-06 13:00  E6 #1323  Counting States with Global Symmetry
147 2015-07-23 13:30  E4, B401  Enhanced ZnO based UV photonics and related applications file
146 2015-12-17 11:00  E4(KI Building), Matrix Hall (2nd fl.)  Wavefront engineering for in-vivo Deep brain imaging
145 2015-12-09 11:00  E4(KI Building), Connect room (2nd fl.)  Functional Imaging & Monitoring of Brain & Breast with Diffuse Light