Forwarded from IPMMath
فراخوان شهریور ماه 1402 دوره پسادکتری
پژوهشکده ریاضیات
جهت کسب اطلاعات بیشتر و ثبت تقاضا به لینک ذیل مراجعه نمایید:
http://math.ipm.ac.ir
پژوهشکده ریاضیات
جهت کسب اطلاعات بیشتر و ثبت تقاضا به لینک ذیل مراجعه نمایید:
http://math.ipm.ac.ir
Forwarded from IPMMath
A Long-Term Program on Algebraic Geometry and Number Theory
School of Mathematics, IPM
جهت کسب اطلاعات بیشتر به لینک ذیل مراجعه نمایید:
http://hedayatzadeh.info/aag/courses/program
School of Mathematics, IPM
جهت کسب اطلاعات بیشتر به لینک ذیل مراجعه نمایید:
http://hedayatzadeh.info/aag/courses/program
IPMMath
فراخوان شهریور ماه 1402 دوره پسادکتری پژوهشکده ریاضیات جهت کسب اطلاعات بیشتر و ثبت تقاضا به لینک ذیل مراجعه نمایید: http://math.ipm.ac.ir
تاریخ فراخوان شهریور ماه پسادکتری در پژوهشکده ریاضیات تا تاریخ 30 مهر ماه 1402 تمدید شد. جهت ثبت تقاضا و اطلاعات بیشتر به سایت پژوهشکده به آدرس math.ipm.ir مراجعه نمایید.
Algebraic Geometry Biweekly Webinar
Title:
Algebraic Varieties in Quantum Chemistry
Speaker:
Bernd Sturmfels, Max Planck Institute for Mathematics in the Sciences, Leipzig (Germany) & University of California, Berkeley (US)
Date and Time:
18 OCT 2023, 17:30 - 19:00
Abstract:
We discuss the algebraic geometry behind coupled cluster (CC) theory of quantum many-body systems. The high-dimensional eigenvalue problems that encode the electronic Schroedinger equation are approximated by a hierarchy of polynomial systems at various levels of truncation. The exponential parametrization of the eigenstates gives rise to truncation varieties. These generalize Grassmannians in their Pluecker embedding. We explain how to derive Hamiltonians, we offer a detailed study of truncation varieties and their CC degrees, and we present the state of the art in solving the CC equations. This is joint work with Fabian Faulstich and Svala Sverrisdóttir.
https://zoom.us/join
Meeting ID: 9086116889
Passcode: 362880
Venue: (Online)
Title:
Algebraic Varieties in Quantum Chemistry
Speaker:
Bernd Sturmfels, Max Planck Institute for Mathematics in the Sciences, Leipzig (Germany) & University of California, Berkeley (US)
Date and Time:
18 OCT 2023, 17:30 - 19:00
Abstract:
We discuss the algebraic geometry behind coupled cluster (CC) theory of quantum many-body systems. The high-dimensional eigenvalue problems that encode the electronic Schroedinger equation are approximated by a hierarchy of polynomial systems at various levels of truncation. The exponential parametrization of the eigenstates gives rise to truncation varieties. These generalize Grassmannians in their Pluecker embedding. We explain how to derive Hamiltonians, we offer a detailed study of truncation varieties and their CC degrees, and we present the state of the art in solving the CC equations. This is joint work with Fabian Faulstich and Svala Sverrisdóttir.
https://zoom.us/join
Meeting ID: 9086116889
Passcode: 362880
Venue: (Online)
Zoom
Join Meeting | Zoom
Join a Zoom Meeting directly from your web browser using a meeting code or link.
Combinatorics and Computing Weekly Seminar
Title:
A Sample of Robert Tarjan's Algorithmic Results
Speaker:
Omid Etesami, IPM
Date and Time:
18 OCT 2023, 14:00 - 15:00
Abstract:
Some of the most efficient data structures and graph algorithms are due to Robert Tarjan and his co-authors. We will try to mention a sample of these results. To manage this sample better, we classify it into 4 related groups, and try to make connections within each group, and also connections between groups:
1. Adjacency lists, DFS and strong components, 2-satisfiability, planarity testing, 3-connected components
2. Vertex elimination, chordal graphs, partition refinement
3. Union-find, nearest common ancestor, dynamic trees
4. Amortized list update, Fibonacci heaps, splay trees
We may also look at selected results from three areas where Tarjan has intensely worked on: linear-time algorithms (the selection problem), network algorithms (pre-flow for maximum flow, graph separator), data structures (persistent data structure).
https://zoom.us/join
Meeting ID: 834 0734 0293
Passcode: 362880
Venue: Niavaran, Lecture Hall 1
Title:
A Sample of Robert Tarjan's Algorithmic Results
Speaker:
Omid Etesami, IPM
Date and Time:
18 OCT 2023, 14:00 - 15:00
Abstract:
Some of the most efficient data structures and graph algorithms are due to Robert Tarjan and his co-authors. We will try to mention a sample of these results. To manage this sample better, we classify it into 4 related groups, and try to make connections within each group, and also connections between groups:
1. Adjacency lists, DFS and strong components, 2-satisfiability, planarity testing, 3-connected components
2. Vertex elimination, chordal graphs, partition refinement
3. Union-find, nearest common ancestor, dynamic trees
4. Amortized list update, Fibonacci heaps, splay trees
We may also look at selected results from three areas where Tarjan has intensely worked on: linear-time algorithms (the selection problem), network algorithms (pre-flow for maximum flow, graph separator), data structures (persistent data structure).
https://zoom.us/join
Meeting ID: 834 0734 0293
Passcode: 362880
Venue: Niavaran, Lecture Hall 1
Zoom
Join Meeting | Zoom
Join a Zoom Meeting directly from your web browser using a meeting code or link.
Commutative Algebra Webinar
Title:
Homotopy Lie Algebra of Tor-independent Tensor Products
Speaker:
Mohsen Gheibi, Florida A&M University, USA
Date and Time:
19 OCT 2023, 14:30 - 16:30
Abstract:
Given surjective maps φ1:RoS1 and φ2:RoS2 of local rings with TorRi>0(S1,S2)=0, in this talk we focus on the structure of the homotopy lie algebra π(S) of S:=S1⊗RS2. We will see in various cases this is isomorphic to the pullback of Lie algebras π(S1)×π(R)π(S2). As an application, the Poincare series of the residue field of S can be written in terms of the ones of S1, S2, and R. Also, I will address some common properties that local homomorphism φ1 and φ2 share with φ:RoS. The key ingredients are minimal models described in chapter 7 of Avramovs Infinite Free Resolutions book.
This talk is based on a work jointly with L. Ferraro, D. Jorgensen, N. Packauskas, and J. Pollitz.
Online in Zoom: https://zoom.us/join
Meeting ID: 9086116889
Passcode: 362880
Venue: (Online)
Title:
Homotopy Lie Algebra of Tor-independent Tensor Products
Speaker:
Mohsen Gheibi, Florida A&M University, USA
Date and Time:
19 OCT 2023, 14:30 - 16:30
Abstract:
Given surjective maps φ1:RoS1 and φ2:RoS2 of local rings with TorRi>0(S1,S2)=0, in this talk we focus on the structure of the homotopy lie algebra π(S) of S:=S1⊗RS2. We will see in various cases this is isomorphic to the pullback of Lie algebras π(S1)×π(R)π(S2). As an application, the Poincare series of the residue field of S can be written in terms of the ones of S1, S2, and R. Also, I will address some common properties that local homomorphism φ1 and φ2 share with φ:RoS. The key ingredients are minimal models described in chapter 7 of Avramovs Infinite Free Resolutions book.
This talk is based on a work jointly with L. Ferraro, D. Jorgensen, N. Packauskas, and J. Pollitz.
Online in Zoom: https://zoom.us/join
Meeting ID: 9086116889
Passcode: 362880
Venue: (Online)
Zoom
Join Meeting | Zoom
Join a Zoom Meeting directly from your web browser using a meeting code or link.
Weekly Schedule-October 21-October 26.pdf
594.1 KB
برنامه هفتگی سخنرانی ها و دوره ها در پژوهشکده ریاضیات (29 مهر الی 4 آیان ماه 1402)
Weekly Schedule-October 28-November 2.pdf
524.2 KB
برنامه سخنرانی ها و سمینار ها در پژوهشکده ریاضیات (6 الی 11 آبان ماه 1402)
Weekly Schedule-November 4-November 9.pdf
585.5 KB
برنامه سخنرانی ها و سمینار ها در پژوهشکده ریاضیات (13 الی 18 آابان ماه)