Webinar Series: CATGT

The main focus of this series will be on the research directions that explores applications of Combinatorics in Algebra, Topology and Graph Theory (CATGT). Some of the possible directions are Topological Combinatorics, Combinatorial Commutative Algebra, Combinatorial properties of graphs, etc. This will be a great opportunity for graduate students and young researchers to get to know each other and learn more about the ongoing research in these areas.

The talks will typically take place on each Wednesday at 11:00 AM IST (UTC+05:30). The webinar is hosted on Zoom. If you are interested in giving a talk or would like to get email notification for upcoming talks, please fill the form here

We especially encourage graduate students and early career researchers to come forward and present their research in the aforementioned topics. Enthusiastic undergraduate and masters students are also welcome to give talks in this series. Expository talks are equally welcome.

Recording of past webinars are available on our YouTube channel. Feel free to write back to us at seminarCATGT@gmail.com, in case of any query.

We are thankful to Chennai Mathematical Institute for providing us with a Zoom account for conducting these webinars.

Upcoming webinar: 

We do not have any more talks this semester. See you all soon.

Past Webinars (click to expand)

 Yuanning Zhang (The University of California), 25 November 2020, 10:00 AM IST

Title: Filtering Grassmannian Cohomology via k-Schur Functions

Abstract, Slides of the talk and Recording of the talk

Manisha Binjola (IIT Delhi), 18 November 2020, 11:00 AM IST

Title: On regular genus of PL 4-manifold with boundary

Abstract, Slides of the talk and Recording of the talk

D. Yogeshwaran (ISI Bangalore), 12 November 2020, 11:00 AM IST

Title: Edge ideals of Random Graphs

Abstract, Slides of the talk and Recording of the talk

Arindam Banerjee (Ramakrishna Mission Vivekananda Educational and Research Institute), 11 November 2020, 11:00 AM IST

Title: Edge Ideals of Graphs and Their resolutions

Abstract, Slides of the talk and Recording of the talk

Amit Roy (IISER Mohali), 4 November 2020, 11:00 AM IST

Title: Standard monomials of 1-skeleton ideal of a graph

Abstract, Slides of the talk and Video

Marcin Wrochna (University of Oxford), 28 October 2020, 4:00 PM IST

Title: Understanding homomorphism approximation problems using topology

Abstract, Slides of the talk and Video

Anton Dochtermann (Texas State University), 21 October 2020, 7:30 PM IST

Title: Shellings, chordality, and Simon's conjecture

Abstract and recording of the talk

Narayanan N (IIT Madras), 14 October 2020, 11:00 AM IST

Title: Shitov's counterexample to Hedetniemi's conjecture

Abstract: We give a sketch of the construction of Shitov’s counterexamples to Hedetniemi’s conjecture and some of the more recent developments.

Slides of the talk and Video

Arvind Kumar (IIT Delhi), 7 October 2020, 11:00 AM IST

Title: Regularity of binomial edge ideals

Abstract, Slides of the talk and Video

Eshita Mazumdar (ISI Bangalore), 30 September 2020, 11:00 AM IST

Title: Iterated sumsets and Hilbert functions

Abstract, Slides of the talk and Video

Manjil Saikia (Cardiff University), 23 September 2020, 11:00 AM IST

Title: Refined enumeration of symmetry classes of Alternating Sign Matrices

Abstract, Slides of the talk and Video

Samir Shukla (IIT Bombay), 16 September 2020, 11:00 AM IST

Title: Higher independence complexes of graphs

Abstract, Slides of the talk and Video

K Somasundaram (Amrita Vishwa Vidyapeetham, Coimbatore), 09 September 2020, 11:00 AM IST

Title: Combinatorial Matrix Theory

Abstract, Slides of the talk and Video

Navnath Daundkar (Chennai Mathematical Institute), 26 August 2020, 11:00 AM IST

Title: Asphericity of chain spaces

Abstract, Slides of the talk and Video

Dharm Veer (Chennai Mathematical Institute), 19 August 2020, 11:00 AM IST

Title: On h-Polynomials of Hibi rings

Abstract, Slides of the talk and Video

S. Venkitesh (IIT Bombay), 12 August 2020, 11:00 AM IST

Title: A tour of 'chip-firing'

Abstract, Slides of the talk and Video

Hiranya Kishore Dey (IIT Bombay), 5 August 2020, 11:00 AM IST

Title: On Determining Number of Kneser Graphs

Abstract, Slides of the talk and Video

Biplab Basak (IIT Delhi), 29 July 2020, 11:00 AM IST

Title: Three-dimensional normal pseudomanifolds with relatively few edges

Abstract, Slides of the talk and Video

Sajith P. (Indian Institute of Sciences), 22 July 2020, 11:00 AM IST

Title: Distinguishing coloring and its variants

Abstract, Slides of the talk and Video

Priyavrat Deshpande (Chennai Mathematical Institute), 15 July 2020, 11:00 AM IST

Title: The Combinatorics of Counting Faces of a Hyperplane Arrangement

Abstract, Slides of the talk and Video

Organisers

Anurag Singh

Postdoctoral fellowDepartment of MathematicsChennai Mathematical Institute, India

Samir Shukla

Postdoctoral fellowDepartment of MathematicsIndian Institute of Technology Bombay, India

Shuchita Goyal

Postdoctoral fellowDepartment of MathematicsChennai Mathematical Institute, India