visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

An Introduction to Cohomology groups

2022.01.21 14:57

admin 조회 수:1399

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
247 2023-07-11 11:00  E6-2, #1323  Ordered phases, non-Fermi liquid, and quantum criticality driven by entanglement between multipoles and conduction electrons
246 2023-07-10 16:00  E6, #1323  Electronic structures of magnetic and non-magnetic ordering in d- and f-electrons systems
245 2019-07-10 16:00  Academic Cltural Complex (E9) 5층 스카이라운지  Public Lectures file
244 2016-07-28 16:00  #1323(E6-2. 1st fl.)  Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
243 2022-07-14 15:00  E6 #1501 & Zoom  Pure two-dimensional quantum electron liquid and its phase transition
242 2022-07-14 14:15  E6 #1501 & Zoom  Hund and electronic correlations in ruthenium-based systems
241 2022-07-14 13:30  E6 #1501 & Zoom  Electronic structure and anomalous transport properties of topological materials by first principle calculation
240 2016-07-08 14:00  #1323(E6-2. 1st fl.)  Electronic quasiparticles in the quantum dimer model
239 2016-07-08 11:00  #1323(E6-2. 1st fl.)  Isostatic magnetism
238 2016-07-07 14:00  #1323(E6-2. 1st fl.)  Let there be topological superconductors
237 2019-07-03 15:00  E6-2, 2501  Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics" file
236 2023-07-14 11:00  E6-2 #1501  Interfaces engineering of thin film oxides
235 2019-01-23 16:00  Rm. C303, Creation Hall (3F), Munji Campus  Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
234 2020-01-17 16:00  #1323, E6-2  Symmetry Breaking and Topology in Superfluid 3He file
233 2019-01-09 16:00  E6-2. 2nd fl. #2501  Molecular Mott state in the deficient spinel GaV4S8 file
232 2021-01-28 18:00  Online Seminar  Quantum metamaterials: concept, theory, prototypes and possible applications file
231 2021-01-28 15:00  Zoom  Topological Transport of Deconfined Hedgehogs in Magnets file
230 2024-01-16 14:00  E6-2, #1323  Dimer Physics and Superconductivity in La3Ni2O7
229 2019-01-07 15:00  E6-2. 2st fl. #2501  Many-Body Invariants for Multipoles in Higher-Order Topological Insulators file
» 2022-01-26 13:00  E6 #1501  An Introduction to Cohomology groups file