visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

An Introduction to Cohomology groups

2022.01.21 14:57

admin 조회 수:964

장소 E6 #1501 
일시 Jan. 26th (Tue), 13:00 
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 일시 장소 연사 제목
공지 Sep.22 2022  E6-1 #1323    2022 가을학기 응집물리 및 광학 세미나 전체 일정
303 May. 25th (Wed), 14:00  E6 Room(#2501)  Dr. Duk-Hyun Choe(Samsung Advanced Institute of Technology)  Atomic-level insights into ferroelectric switching and preferred orientation of ultrathin hafnia file
302 May. 25(Wed), 4pm  E6-2. 1st fl. #1323 / Zoom  Dr. Sungwoo Hong (Enrico Fermi Institute at University of Chicago)  Uncovering New Lampposts for Dark Matter: Continuum or Conformal
301 May. 19(Thu), 4pm  E6-2. #1323 & Zoom  Dr.Jay Hyun Jo (Yale University, Department of Physics)  Chasing Long Standing Neutrino Anomalies with MicroBooNE
300 May. 18(Wed), 4pm  E6-2. #1323 & Zoom  Dr.Heeyeon Kim (Rutgers University, Department of Physics and Astronomy)  Geometry, Algebra, and Quantum Field Theory
299 May. 17(Mon) 17:00  Zoom webinar  Jing Shi (UC Riverside, USA)  Spin current generation and detection in uniaxial antiferromagnets file
298 May. 17 (Thu.), 01:30 PM  E6-2. 1st fl. #1323  Prof. Yong-Baek Kim University of Toronto  Quantum Spin Liquid in Kitaev Materials file
297 May. 14 (Fri.), 04:00 PM  Online seminar  Dr. Je-Hyung Kim(UNIST)  Spatial and temporal separation of environmental dephasing sources from solid-state quantum emitters file
296 May. 14 (Fri.), 02:30 PM  Online seminar  Dr. Suyong Jung(KRISS)  Electrically tunable spin valve effect in vertical van-der-Waals magnetic tunnel junctions file
295 May. 13 (Fri.), 04:00 PM  자연과학동(E6-2) 1st fl. #1323  Dr. Yosep Kim(Center for Quantum Information, KIST)  High-fidelity iToffoli gate for fixed-frequency superconducting qubits file
294 May. 13 (Fri.), 02:30 PM  Zoom webinar  Dr. Kun-Rok Jeon(Department of Physics, Chung-Ang University)  Topological Superconducting Spintronics Towards Zero-Power Computing Technologies file
293 May. 12(Thu), 4pm  E6-2. #1323 & Zoom  Dr.Philip Chang (University of California San Diego, Department of Physics)  New frontiers of electroweak physics at the LHC
292 May. 12 (Fri.), 01:30 PM  E6-2. 1st fl. #1323  Dr. Young Kuk Kim  Topological Dirac insulator
291 May. 11(Wed), 4pm  E6-2. #1323 & Zoom  Dr. Sunok Josephine Suh (Kavli Institute for Theoretical Physics)  Gravity as a phenomenon in quantum dynamics
290 May. 11 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Nam Kim  암페어 단위 재정의와 단전자 펌프 소자 개발 file
289 May. 11 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. Kun Woo Kim  Disordered Floquet topological insulators file
288 May 9 (Wed.), 04:00 PM  #1323, E6-2  Prof. Jong-Soo Rhyee  Recent advances in thermoelectric bulk composites file
287 May 9 (Thu.), 16:00 PM  #1323, E6-2  Prof. Kwang Geol Lee  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
286 May 9 (Thu.), 16:00 PM  #1323, E6-2  Prof. Kwang Geol Lee  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
285 May. 8th (Wed), 16:00  E6 Room(#1323)  Jieun Lee  Imaging valley dependent electron transport in 2D semiconductors file
284 May 311 (Thu.), 04:00 PM  #1323, E6-2  Prof. Teun-Teun Kim  Dynamic control of optical properties with gated-graphene metamaterials file