ATMW Local Cohomology (2016)

Venue:

St. Joseph College, Irinjalakuda, Kerala

Dates:

20th June - 2nd July 2016

 

Convener(s) Speakers, Syllabus and Time table Applicants/Participants

 

School Convener(s)

Name Dr. Sr. Christy Mangalambal N.R Prof. J.K. Verma Markus Brodmann
Mailing Address St. Joseph College, Irinjalakuda, Kerala St. Joseph College, Irinjalakuda, Kerala IIT Bombay -

 

This workshop is partially supportedby 
International Mathematical Union

 

Speakers and Syllabus 

 Speakers

  • H. Ananthnarayan (IIT Bombay)
  • Markus Brodmann (University at Zurich)
  • N. T. Cuong (Institute of Mathematics, Hanoi)
  • Krishna Hanumanthu (CMI, Chennai)
  • Le Tuan Hoa (Institute of Mathematics, Hanoi)
  • Manoj Kummini (CMI, Chennai)
  • Dilip Patil (IISc, Bangalore)
  • Tony J. Puthenpurakal (IIT Bombay)
  • Peter Schenzel (Martin-Luther-University at Halle-Wittenberg)

 Tutors

  • H. Ananthnarayan (IIT Bombay)
  • Markus Brodmann (University at Zurich)
  • N. T. Cuong (Institute of Mathematics, Hanoi)
  • Krishna Hanumanthu (CMI, Chennai)
  • Le Tuan Hoa (Institute of Mathematics, Hanoi)
  • Manoj Kummini (CMI, Chennai)
  • Dilip Patil (IISc, Bangalore)
  • Tony J. Puthenpurakal (IIT Bombay)
  • Peter Schenzel (Martin-Luther-University at Halle-Wittenberg)

Course Plan in Brief

1. Manoj Kummini (CMI, Chennai) Manoj Kummini delivered 3 lectures on the following topics: Injective modules: Injective Modules, existence of injective hull, structure theorem for irreducible injective modules, examples of injective modules, Matlis duality.

2. Tony Puthenpurakal (IIT Bombay) Tony Puthenpurakal delivered 7 lectures on the following topics: Local cohomology: Resolutions and derived functors, Local Cohomology functor, direct limit of Ext modules, direct limit of Koszul cohomology modules. Depth, non-vanishing and vanishing theorems. Ring of differential operators on K [[X1 ...Xd]] where K is a field of characteristic zero. Application to local cohomology modules over Regular rings containing a field of characteristic zero. Associated primes of local cohomology modules. Finiteness of Bass numbers of local cohomology modules. Bounds on injective dimension of local cohomology modules.

3. Dilip Patil (IISc, Bangalore) Dilip Patil delivered 4 lectures on the following topics: Cohen-Macaulay rings: Koszul complex, regular sequences, characterisation of depth via Ext modules, Cohen-Macaulay modules and their characterisations, unmixedness theorems, examples of CM rings, Auslander Buchsbaum formula. Ferrand-Vasconceos theorem about I=I2.

4. H. Ananthnarayan (IIT Bombay) H Anathnarayan delivered 4 lectures on the following topics: Gorenstein rings: various definitions of Gorenstein rings, Bass numbers, injective resolutions, canonical module, local duality, examples of Gorenstein rings, Serre's theorem.

5. Krishna Hanumanthu (CMI, Chennai) Krishna Hanumanthu delivered 3 lectures on the following topics: Serr'e FAC paper: : Sheaves, Cech cohomology, Flasque sheaves, relation between local cohomology and sheaf cohomology, Grothendieck-Serre difference formula for Hilbert functions, projective Varieties: graded local cohomology, sheaves on projective varieties, global sections and cohomology.

6. Markus Brodmann (Univ. Zurich) Markus Brodmann delivered 4 lectures on the following topics: D-modules: Filtered algebras, derivations, Weyl algebra, the standard basis, weighted degrees and filtrations, weighted associated graded rings, filtered modules, D-modules, Grobner bases, weighted orderings, standard degree and Hilbert polynomials.

7. N.T. Cuong (Institute of Mathematics, Hanoi) N T Cuong delivered 4 lectures on the following topics: Sequentially Cohen-Macaulay modules: Filtrations and good systems of parameters, sequentially Cohen-Macaulay modules, characterization of sequentially Cohen-Macaulay modules by good systems of parameters.

8. Le Tuan Hoa (Institute of Mathematics, Hanoi) Le Tuan Hoa delivered 4 lectures on the following topics: Castelnuovo-Mumford regularity: Characterisations of Castelnuovo-Mumford regularity via local cohomology, Mumford's characterization of regularity of sheaves on projective space and its extension by Eisenbud-Goto, regularity and reduction numbers of large powers of ideals, bounding regularity in terms of degrees of defining equations, regularity and Hilbert coefficients, complexity of Grobner bases, some open problems.

9. Peter Schenzel (Univ. Halle) Peter Schenzel delivered 3 lectures on the following topics: Bezout's Theorem and local cohomology: Rees and form rings, Hilbert function, Hilbert polynomial, multiplicities, Auslander-Buchsbaum-Serre formula for multiplicities of parameter ideals, subcomplexes of Koszul and Cech-complexes, inequalities for local intersection numbers in Bezout's, theorem, corrections of results of Pritchard and Greuel-Lossen-Justin.

10. J. K. Verma (IIT Bombay) J. K. Verma delivered 1 lecture on the following topic: Stanley's solution of the ADG conjecture.

Researchers

  • Clare D'Cruz (CD)
  • Dipankar Ghosh (DG)
  • Jyoti Singh (JS)
  • Rakesh Reddy (RR)
  • Parangama Sarkar (PS)
  • Kumari Saloni (KS)
  • Mandira Mondol (MM)
  • R. Bhattacharyya (RB)
  • Jai Laxmi (JL)
  • Rajiv Kumar (RK)
  • A.V. Jayanthan (AVJ)

Schedule of Lectures and Tutorials

Day Date 9.30 11.00 11.30 1.00 2.00 3.30 4.00-4.50 (tut) 4.50 5.10-.6.00 (tut)
Mon 20-6 DP

T

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A

TP

 L

U

N

C

H

MK

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DP, mk, tp  

S

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MK,dp,tp
Tue 21-6 DP TP MK TP, mk, dp MK, dp, tp
Wed 22-6 DP TP MK DP, tp, mk MK, dp, tp
Thu 23-6 DP TP PS TP, dp, ps PS, dp, tp
Fri 24-6 MB HA PS MB, ha, ps HA, mb, ps
Sat 25-6 MB HA PS HA, mb, ps PS, mb, ha
Sun     EXCURSION   
Mon 27-6 MB

T

E

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HA L

U

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KH  

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MB,ha,kh

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CD, DG
Tue 28-6 MB HA KH JKV JS, RR
Wed 29-6 LH NC KH LH, nc,kh PS, KS
Thu 30-6 LH NC TP NC, lh,tp MM, RB
Fri .1-7 LH NC TP LH, nc, tp JL, RK
Sat .2-7 LH NC TP NC, lh, tp Val

 

Researcher Institute Research Paper
Clare D'Cruz (CD) CMI, Chennai Castelnuovo-Mumford regularity
Dipankar Ghosh (DG) IIT Bombay Asymptotic linear bounds of Castelnuovo- Mumford regularity in multi-graded modules
Jyoti Singh (JS) IIT Bombay Coisotropic Property of Characteristic Varieties
Rakesh Reddy (RR) IISER, Trivandrum de Rham Cohomology of Local Cohomology modules
Parangama Sarkar (PS) IIT Bombay Local cohomology of multi-Rees algebras & joint reduction numbers and product of complete ideals
Kumari Saloni (KS) IIT Guwahati On Hilbert coe_cients of parameter ideals
Mandira Mondol (MM) TIFR, Mumbai Hilbert Kunz Multiplicity and Hilbert Kunz density function of Segre product and tensor product of rings
R. Bhattacharyya (RB) DA College, Kolkata Behaviour of _niteness of associated primes of Lyubeznik functor under ring extensions
Jai Laxmi (JL) IIT Bombay Decomposing Gorenstein Rings as Connected Sums
Rajiv Kumar (RK) IITBombay Extremal Rays of the Betti Cones
A.V. Jayanthan (AVJ) IITMadras Regularity of binomial edge ideals of block graphs

 

Actual Participants 

 

Sr. SID Full Name Gender Affiliation Position in College/ University University/ Institute M.Sc./ M.A. Year of Passing M.Sc./ M.A Ph.D. Deg. Date
1 6793 Ms. Kriti Goel Female IIT Bombay PhD IIT Bombay 2015  
2 6989 Mr. Rajiv Kumar Male IIT Bombay PhD Guru Nanak Dev University Amritsar 2009  
3 7027 Ms. Sudeshna Roy Female IIT Bombay PhD Jadavpur University 2013  
4 7048 Mr. Joydip Saha Male Ramakrishna Mission Vivekananda University Ph.D. Ramakrishna Mission Vivekananda University 2010  
5 7327 Mr. Rajib Sarkar Male CMI PhD IIT MADRAS 2014  
6 7333 Mr. Ram Shila Male JNU PhD UM DAE CBS, Mumbai University 2014  
7 7348 Ms Mitra Koley Female CMI PhD IIT Guwahati 2011  
8 7475 Mr. Rijul Saini Male TIFR PhD Integrated PhD 2015  
9 7531 Mr. Sujoy Chakraborty Male TIFR Research Scholar Chennai Mathematical Institute 2015  
10 7600 Mr. Sampat Kumar Sharma Male TIFR MUMBAI PhD IISER MOHALI 2014  
11 7670 Ms. Parangama Sarkar Female IITB Phd IIT Madras 2011  
12 7690 Mr. Subhajit Chanda Male IIT MADRAS PhD IIT MADRAS 2015  
13 7812 Ms. Jai Laxmi Female IIT BOMBAY PhD University  of  Hyderabad 2012  
14 7859 Mr. Selvaraja S Male IIT MADRAS PhD Indian Institute of Technology Kanpur 2013  
15 7882 Mr. Dipankar Ghosh Male IIT BOMBAY PhD Indian Institute of Technology Guwahati 2011  
16 7921 Mr. Amith K Shastri Male TIFR PhD University Of Madras 2014  
17 7922 Mr Ravitheja Vangala Male TIFR PhD Chennai Mathematical Institute 2014  
18 8016 Mr. Anoop Singh Male HRI PhD University of Allahabad 2013  
19 8036 Ms. Kumari Saloni Female IIT Guwahati PhD student IIT Guwahati 2010  
20 8140 Dr. Jyoti Singh Female IIT bombay Post-doctoral Fellow University of Lucknow 2009 8/4/2015
21 8141 Ms Mandira Mondal Female TIFR PhD Student      
22 8145 Mr. Ajay Kumar Male Dav University Jalandhar Assistant Professor Panjab University 2008 5/29/2015
23 8180 Dr. Rajsekhar Bhattacharyya Male Dinabandhu Andrews College Associate Professor      
24 7520 Mr. Soumitra Das Male North-Eastern Hill University PhD North-Eastern Hill University 2012  
25 7847 Mr. Prabakaran P Male Periyar University PhD M.Sc. 2012  
26   Ms. Dhanya V S Female St. Joseph's College Assistant Professor      
27   Dr. Rakhesh Reddy Male          
28   Mr.Bibekananda Male          
29    Ms. Sabna K S Female          
30    Ms. Clare D'Cruz Female          

 

 


How to reach

Venue: St. Joseph’s College, Irinjalakuda, Thrissur, Kerala 680121
Accommodation: Chand V Regency, Munnupedika, Thrissur, Kerala, India 680681 (9.4 kms from the venue)

 

How to Reach to Chand V Regency

From

By

Route

Fare (approx.)

Thrissur Railway

Taxi

Thrissur- Irinjalakkuda-

Rs. 720

Station

 

Moonupedika(30km)

 

 

 

 

 

 

 

 

 

 

Bus

Reach Sakthan Thampuran Bus

Rs. 30

 

Rs. 80

 

 

stand By Auto (2 km),

 

 

 

 

 

 

 

 

 

 

 

Catch bus to Kodungaloor via

Rs. 30

 

 

 

 

Vadanapilly/Thriprayar , get down

 

 

 

 

 

at Munnupedika stop (33 km)

 

 

 

 

 

 

 

 

 

 

 

Get Auto to Chand V Regency

Rs. 20

 

 

 

Auto

Thrissur- Irinjalakkuda-

Rs. 600

 

 

Moonupedika(30km)

 

 

 

 

 

 

 

Irinjalakkuda

Taxi

Kalletumkara-Irinjalakkuda-

Rs. 450

Railway Station

 

Moonupedika(18km)

 

 

 

(Kalletumkara)

 

 

 

 

 

Auto

Kalletumkara-Irinjalakkuda-

Rs. 360

 

 

 

Moonupedika(18km)

 

 

 

 

 

 

 

Cochin (Nedumbassery)

Taxi

Nedumbassery- Angamaly-Chalakudy- Potta-

Rs. 1200

International

 

Irinjalakuda-Munnupedika (50 km)

 

 

 

Airport

 

 

 

 

 

 

 

 

 

 

 

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