2018
Nov
08

# Basic Notions seminar : Tomer Schlank - Spectra or homotopical Abelian groups

4:00pm to 5:15pm

## Location:

Ross70

**Speaker: Tomer Schlank**

**Title: Spectra or homotopical Abelian groups**

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2018
Nov
08

4:00pm to 5:15pm

Ross70

2018
Nov
01

4:00pm to 5:15pm

Ross 70

2018
Nov
05

1:00pm to 2:00pm

Faculty lounge, Math building

The main goal of my talk will be to introduce adeles and ideles and to formulate the global class

field theory both for number fields and function fields.

Key words: adeles, ideles, class field theory, algebraic curves.

field theory both for number fields and function fields.

Key words: adeles, ideles, class field theory, algebraic curves.

2018
Nov
12

1:00pm to 2:00pm

Faculty lounge, Math building

The goal of my talk will be to formulate local and global Langlands conjectures

Key words: smooth representations of p-adic groups, supercuspidal representations,

automorphic representations, cusp forms, Galois representations.

Key words: smooth representations of p-adic groups, supercuspidal representations,

automorphic representations, cusp forms, Galois representations.

2018
Oct
29

1:00pm to 2:00pm

Faculty lounge, Math building

The goal of my talk will be to introduce the local and the global

the Class field theory. Though definitions of all basic objects

(inverse limits, p-adic numbers, adeles, ideles, etc.) will be briefly recalled,

it is recommended that the participants review these notions

before the lecture.

The talk will be independent of the first lecture

the Class field theory. Though definitions of all basic objects

(inverse limits, p-adic numbers, adeles, ideles, etc.) will be briefly recalled,

it is recommended that the participants review these notions

before the lecture.

The talk will be independent of the first lecture

2018
Nov
19

11:00am to 1:00pm

Rothberg CS bldg, room B500, Safra campus, Givat Ram

Speaker: Michael Simkin, HU

Title: The threshold problem for Latin squares

Title: The threshold problem for Latin squares

2018
Nov
12

11:00am to 1:00pm

Rothberg CS bldg, room B500, Safra campus, Givat Ram

Speaker: Michael Chapman, HU

Title: Graphs which are expanders both locally and globally

Abstract:

Title: Graphs which are expanders both locally and globally

Abstract:

2018
Oct
24

11:00am to 1:00pm

Ross 63

2018
Oct
22

1:00pm to 2:00pm

Faculty lounge, Math building

Abstract: Modular forms are historically the first example of automorphic

forms, and are still studied today as they have many applications. In

this talk I want to introduce modular forms, give some examples, and, if

time permits, explain the connection to elliptic curves, objects we

already met in the first lecture.

forms, and are still studied today as they have many applications. In

this talk I want to introduce modular forms, give some examples, and, if

time permits, explain the connection to elliptic curves, objects we

already met in the first lecture.

2018
Oct
31

12:00pm to 1:00pm

Room 70, Ross building

We present an approach to computing the scaling limits of Christoffel-Darboux kernels using transfer matrix evolution.

2018
Oct
24

12:00pm to 1:00pm

Room 70, Ross building

Title: An improved bound for Hadwiger’s covering problem via thin shell inequalities for the convolution square.

Abstract: A long-standing open problem, known as Hadwiger’s covering problem, asks what is the smallest natural number N(n) such that every convex body in {\mathbb R}^n can be covered by a union of the interiors of at most N(n) of its translates. Despite continuous efforts, the best-known general upper bound for this number remain as it was more than half a decade ago, and is of the order of \binom{2n}{n}n\ln n.

Abstract: A long-standing open problem, known as Hadwiger’s covering problem, asks what is the smallest natural number N(n) such that every convex body in {\mathbb R}^n can be covered by a union of the interiors of at most N(n) of its translates. Despite continuous efforts, the best-known general upper bound for this number remain as it was more than half a decade ago, and is of the order of \binom{2n}{n}n\ln n.

2018
Oct
18

4:15pm to 5:30pm

Speaker: **Ehud de Shalit**

Title:**Periods and Hodge theory, complex and p-adic**

**Complex theory**

This will be a survey of complex Hodge theory, with applications to period maps and moduli and with an emphasis on the example of abelian varieties. It will cover classical results of Riemann, Siegel, Hodge and Griffiths

Title:

This will be a survey of complex Hodge theory, with applications to period maps and moduli and with an emphasis on the example of abelian varieties. It will cover classical results of Riemann, Siegel, Hodge and Griffiths

2018
Oct
25

4:00pm to 5:15pm

Ross 70

Speaker: **Ehud de Shalit**

Title:**Periods and Hodge theory, complex and p-adic**

**P-adic theory**

p-adic Hodge theory started with Tate in the 1960's, and witnessed two periods of great expansion: one by Fontaine and his school, the other one more recently, by Scholze and his collaborators. It has found spectacular applications in arithmetic algebraic geometry. Scholze got the Fields medal last August for this work. By analogy with the first lecture we shall try to explain the main ideas, without going into details

Title:

p-adic Hodge theory started with Tate in the 1960's, and witnessed two periods of great expansion: one by Fontaine and his school, the other one more recently, by Scholze and his collaborators. It has found spectacular applications in arithmetic algebraic geometry. Scholze got the Fields medal last August for this work. By analogy with the first lecture we shall try to explain the main ideas, without going into details

2018
Oct
15

1:00pm to 2:00pm

Faculty lounge, Math building

This is a new seminar, whose official name is "Topics in number theory

and algebraic geometry". At least in the beginning the goal

of the seminar will be to give a (relatively) gentle introduction to

various topics, which should be accessible to beginning but motivated graduate students.

The seminar has a number in the shnaton (80942), so graduate students

can get a credit for it.

describe areas of mathematics, connected to Langlands program.

2018
Dec
09

12:00pm to 2:00pm

Ross 70A

Abstract:

The Chabauty method is a remarkable tool which employs p-adic analitic methods (in particular Colman integration.) To study rational points on curves. However the method can be applied only when the genus of the curve in question is larger than its Mordell-Weil rank. Kim developed a sophisticated "nonableian" generalisation.

We shall present the classical methid, and give an approachable introduction to Kim's method.

I'm basically going to follow http://math.mit.edu/nt/old/stage_s18.html

The Chabauty method is a remarkable tool which employs p-adic analitic methods (in particular Colman integration.) To study rational points on curves. However the method can be applied only when the genus of the curve in question is larger than its Mordell-Weil rank. Kim developed a sophisticated "nonableian" generalisation.

We shall present the classical methid, and give an approachable introduction to Kim's method.

I'm basically going to follow http://math.mit.edu/nt/old/stage_s18.html