Welcome to the Department of Mathematics

News

ברכות חמות למישה אנטוב על קבלת דרגת פרופסור מן המניין
Congratulations to Amir Yehudayoff

On the birth of his son Oliver!

אני שמח להודיע כי בסמסטר אביב תשע"ה, נבחרו על-פי ציוני משאל המרצה הטוב

מרצה מצטיינת טכניונית (הצטיינות יתרה בהוראה):

לודה מרקוס, לידיה פרס-הרי, עליזה מלק ציון.

ציון לשבח על הצטיינות בהוראה:

רון הולצמן, רועי משולם, רוס פינסקי, אדי מאיר-וולף, דניאלה אבידן, לודה מרקוס, אביב צנזור, שוקי ארושס, סילביה בהר.

ברכות לכולם על הזכייה!

אלי

ברכות לאורי שפירא על זכייתו בפרס קריל (KRILL) לשנת תשע"ה.

פרס קריל ניתן על הצטיינות מדעית ומוענק יל ידי קרן וולף היוקרתית.

הפרס הוא אות כבוד לאורי, לפקולטה למתמטיקה ולטכניון כולו.

Faculty Activities
Colloquium - Catherine Bandle (Basel)
01/06/2015, Monday, 15:30
Type : Colloquium
Name : Colloquium
Title : Stability results for solutions of semi linear elliptic equations on Riemannian manifolds
Speaker : Catherine Bandle (Basel)
Place : Sego 1, Technion
Abstract    

We study the stability and instability of equilibrium solutions of a reaction-diffusion equationwith different types of boundary conditions. Stable solutions play an important role in thestudy of pattern formation in biology. Unstable solutions lack of physical significance. it turnsout that the stability depends on the curvature of the manifold and the geometric propertiesof the boundary. The main tool is the Bochner-Weitzenböck formula. The talk is intended to givea flavor of how to apply this formula and does not require any knowledge of geometric analysis.

Submitted by : Ram Band, ramband@tx.technion.ac.il
Event № : 80
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=eo80
02/06/2015, Tuesday, 11:30
Type : Seminar
Name : Seminar in Probability and Stochastic Processes
Title : Borell's formula for a Riemannian manifold
Speaker : Joseph Lehec
Place : Meyer bldg (elec. eng.), room 861. Technion, Haifa., Technion
Abstract    
Borell's formula is a stochastic variational formula for the log-Laplace transform of a function of a Gaussian vector. We shall present an extension of this to the Riemannian setting. As an application we will give a new proof of the Brascamp-Lieb inequality on the sphere (due to Carlen, Lieb and Loss).
Submitted by : Oren Louidor, oren.louidor@gmail.com
Event № : 1519
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=tm1519
02/06/2015, Tuesday, 12:30
Type : Seminar
Name : Seminar in Probability and Stochastic Processes
Title : Markov chains with asymptotically zero drift: asymptotic behavior of passage times
Speaker : Vitali Wachtel (Augsburg)
Place : Meyer bldg (elec. eng.), room 861. Technion, Haifa., Technion
Abstract    
Let X_n be a Markov chain on R_+ with the following asymptotics of first and second moments:
E [X_1-X_0|X_0=x] ~ -\mu/x, as x \to \infty,
E [(X_1-X_0)^2|X_0=x] ~ b \in (0,\infty), as x \to \infty.

In this talk I shall describe the tail behavior of the stopping time
\tau_A:=\min\{n \geq1: X_n \leq A\} in the recurrent case \mu>-b/2.
Furthermore, I shall discuss the asymptotic behavior of X_n conditioned on \tau_A>n.
Submitted by : Oren Louidor, oren.louidor@gmail.com
Event № : 1520
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=tm1520
PDE and Applied Mathematics Seminar - Moshe Marcus (Technion)
02/06/2015, Tuesday, 14:30
Type : Seminar
Name : PDE and Applied Mathematics Seminar
Title : Equations with Hardy type potential
Speaker : Moshe Marcus (Technion)
Place : Amado 814, Technion
Abstract    

We discuss properties of positive solutions of linear equations of the form $\Delta u +a\delta(x)^{-2}\,u=0$ and of a class of corresponding semilinear equations with absorption term.

Submitted by : Ram Band, ramband@tx.technion.ac.il
Event № : 82
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=eo82
Nonlinear Analysis and Optimization Seminar - Ronen Talmon (EE, Technion)
07/06/2015, Sunday, 14:30
Type : Seminar
Name : Nonlinear Analysis and Optimization Seminar
Title : Common Manifold Learning Using Alternating Diffusion for Multimodal Signal Processing
Speaker : Ronen Talmon (EE, Technion)
Place : Room 814, Amado Mathematics Building, Technion
Abstract    

One of the true challenges in signal processing is to distinguish between different sources of variability. In this work we consider the case of multiple multimodal sensors measuring the same physical phenomenon, such that the properties of the physical phenomenon are manifested as a hidden common source of variability (which we would like to extract), while each sensor has its own sensor-specific effects. We will address the problem from a manifold learning standpoint and show a method based on alternating products of diffusion operators and local kernels, which extracts the common source of variability from multimodal recordings. The generality of the addressed problem sets the stage for the application of the developed method to many real signal processing problems, where different types of devices are typically used to measure the same activity In particular, we will show an application to sleep stage assessment. We demonstrate that through alternating-diffusion, the sleep information hidden inside multimodal respiratory signals can be better captured compared to single-modal methods.

This is joint work with Roy. R. Lederman. 

Submitted by : Simeon Reich, sreich@tx.technion.ac.il
Event № : 84
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=eo84
Center for Mathematical Sciences Activities
17/06/2015, Wednesday, 09:00 - 24/06/2015, Wednesday, 16:00
Type : Workshop
Name : CMS
Title : Generalizations of Symmetric Spaces
Speaker :
Place : Nachsholim Resort, Technion
Announcement    

ERC                CMS

Workshop on Generalizations of Symmetric Spaces

17th-24th June, 2015

Registration is now closed

An e-mail will be sent in the next few days to thoses registered. If you have registered and did not recieve an e-mail by April 12, please contact cms@math.technion.ac.il

Important Note: When booking your flight, please take into consideration that the conference shuttle leaves on June 17th at 11:30am from Binyamina railway station, which is one hour by train from Ben Gurion airport. We thus recommend that you arrive either in the early morning of the 17th, or at the 16th. In the latter case we can help you find accommodation in Tel Aviv or Haifa for the night.

The  following mini-courses will be given:

Michel Brion (Institute Fourier) "Spherical Varieties"

Kai-Uwe Bux (Universität Bielefeld) "Finiteness Properties of Arithmetic Groups"

Dima Gourevitch (Weizmann Institute) "Multiplicity One Spaces"

Bertrand Rémy (École Polytechnique) "Compactifications of Buildings"

 

Contributed talks by:

Peter Abramenko, Avraham Aizenbud, Uri Bader, Alex Jay Feingold, Maxim Gurevich, OskarHamlet, Max Horn, David Hume, Shachar Carmeli, Alexander Kemarsky, Yury Neretin, Andrei Rapinchuk, Eitan Sayag, Aleksy Tralle.

Organizers: Tobias Hartnick (Technion), Aloysius Helminck (NC State University), Ralf Köhl (JLU Gießen), Amos Nevo (Technion)

For further administrative information please contact: Shiri Kaplan- Shabat, Workshop Coordinator

Phone: +972-(0)4-8294276\8 Fax: +972-(0)4-8293388 E-mail: cms@math.technion.ac.il

Files : Poster
Submitted by : cms@math.technion.ac.il
Event № : 34
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=eo34
12/07/2015, Sunday, 09:00 - 16/07/2015, Thursday, 16:00
Type : Workshop
Name : CMS
Title : Coloring Graphs at the Technion
Speaker :
Place : Amadi 814, Technion
Announcement    

ISF- The Israeli Science Foundation     CMS- Center for Mathematical Science

Coloring Graphs at the Technion

Graph Coloring and Chi –boundedness with Algebra, Topology and Probability

The goal of this informal workshop is to bring together researchers in an attempt of a focused attack on some long standing problems in graph coloring. The workshop will deal with variants on classical graph coloring, and related problems, such as cooperative colorings, χ-boundedness, Reed's conjecture and strong colorings.

We have gathered a group of experts in a broad spectrum of areas of Discrete Mathematics, and we hope to benefit from their diverse branches of expertise. Thus, we expect to use approaches such as topological methods, structural tools and the probabilistic method.

 

Supported by the Elisha Netanyahu Institute of Advanced Studies in Mathematics

 Organizers: Ron Aharoni, Eli Berger, Maria Chudnovsky, Roy Meshulam

For further administrative information please contact: Shiri Kaplan-Shabat, Workshop Coordinator Phone: +972-(0)4-8294278 Fax: +972-(0)4-8293388 E-mail:  cms@math.technion.ac.il

Submitted by : cms@math.technion.ac.il
Event № : 35
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=eo35
30/08/2015, Sunday, 09:00 - 04/09/2015, Friday, 12:00
Type : Workshop
Name : CMS
Title : Mostly Markov Mixing - Summer School 2015
Speaker :
Place : Amado 814, Technion
Announcement    

Center for Mathematical Sciences

Mostly Markov Mixing

Summer Workshop For Graduate Students

(and Post-Docs and Gutsy Undergrads)

Sunday-Wednesday 30.8.15 - 2.9.15

Followed by: Workshop for Researchers (and Students)

Thursday-Friday 3.9.15 - 4.9.15

Technion, Haifa, Israel

Registration is now open until 31.7.15

The workshop will focus on topics connected to and arising from the problem of calculating the mixing rate for Markov processes on large finite state spaces as the size of the state space tends to infinity.

Featured Mini-Courses:

Persi Diaconis, Stanford University

Yuval Peres, Microsoft, Redmond, WA

Laurent Saloff-Coste, Cornell University

Additional Lectures:

Pietro Caputo, University of Rome 3

Elchanan Mossel, University of California, Berkeley

Perla Sousi, University of Cambridge

Organizers: Ross Pinsky, Eddie Mayer-Wolf, Nick Crawford

For information: Shiri Kaplan-Shabat, Conference Coordinator, Tel: +972-4-8294278 E-mail: cms@math.technion.ac.il

Files : Poster
Submitted by : cms@math.technion.ac.il
Event № : 36
http://www.math.technion.ac.il/Site/events/EvntOffices/event.php?eid=eo36