Western Canada Linear Algebra Meeting (W-CLAM) 2012

Place and Date | Sponsors | Invited Speakers | Description | Organizers | Program | Student Participation and Posters | Financial Support | Travel | Accommodation | Tourist Info | Registration | Conference package | Contacts | Participants and Group Photos

Place and Date
University of Lethbridge, Lethbridge, Alberta, Saturday May 12 - Sunday May 13, 2012.
Funding is provided by the Pacific Institute for the Mathematical Sciences, the International Linear Algebra Society, and the University of Lethbridge (Faculty of Arts & Science)
  Pacific Institute for the
 Mathematical Sciences   International Linear Algebra Society   Faculty of Arts & Science, University of Lethbridge  
Invited speakers
Invited speakers are:
The 2012 Western Canada Linear Algebra Meeting (WCLAM) will be held at the University of Lethbridge in room C640 on Saturday May 12 - Sunday May 13, 2012. This is the 11th in a series of biennial meetings that have been held at various sites throughout Western Canada. WCLAM provides an opportunity for researchers and mathematicians in linear algebra and its applications to meet, present accounts of their research, and to hold informal discussions. While the meeting has a regional base, it also attracts researchers from elsewhere. Young researchers (postdocs and graduate students) are encouraged to participate and may be eligible for financial assistance.

In addition to the invited talks, participants are encouraged to give a 25 minute presentation. Please submit the title and abstract for your talk by February 28, 2012. Alternately or additionally, we would be very pleased if participants would contribute posters. The meeting fee will be $50 in cash to be collected at the meeting. This fee is waived for the invited speakers, students and postdoctoral fellows. All participants are strongly encouraged to complete the registration form below.

The organizers are: The local organizer is: with assistance provided by Wolf Holzmann, U. of Lethbridge.
The talks are in C640, a room on the sixth (main concourse) level of University Hall, the long main signature building on the east side of campus. The room is one floor up from the department office (C526), faculty offices, lounge and computer labs on the fifth level.
For the information of speakers, the room has three LCD projectors and two slide projectors. Having your talk on a memory stick or emailing the talk in advance to Hadi Kharaghani would be best.
Refreshments will be available in an adjacent room, C630, during the three breaks and during registration. A light lunch will be supplied both days.

TimeRoomSpeaker/EventTitle & link to all Abstracts
May 12
8:00- 8:45Registration
8:45- 9:00Welcome & Information
Chair: Hadi Kharaghani
9:00- 9:50C640Heydar Radjavi (invited)Local-to-Global Properties of Semigroups of Matrices
10:00-10:25C640Douglas FarenickArveson's criterion for unitary similarity
Chair: Peter Lancaster
11:00-11:25C640C. ChorianopoulosInverse Problems for Hermitian Quadratic Matrix Polynomials
11:30-12:00C640Fuzhen ZhangSome Inequalities of Majorization Type
Chair: Peter Lancaster
13:30-14:20C640Chi-Kwong Li (invited - ILAS)Quantum operations and completely positive linear maps
Chair: Dale Olesky
15:00-15:25C640Antonio CiconeJoint Spectral Radius approximation
15:30-15:55C640Colin M. GarnettThe Nilpotent-Centralizer Method
16:00-16:25C640Mike CaversMatrix patterns that allow arbitrary inertia
18:00+....Informal Dinner
May 13
Chair: Pauline van den Driessche
9:00- 9:50C640Ioana Dumitriu (invited)Randomized Spectral Divide-and-Conquer: a Communication-Optimal Approach to the Non-symmetric Eigenproblem
10:00-10:25C640Shahla NasserasrRatio of Matrices
10:30-11:00Group photo and break
Chair: Rob Craigen
11:00-11:25C640Minghua LinAn analogue of Krein's inequality with applications
11:30-12:00C640Rajesh PereiraSpectral Set theory and the spectrum of Banach algebra elements
12:00-12:25C640Gerald BourgeoisCommon invariant subspace and commuting matrices
Chair: Wolf Holzmann
14:00-14:25C640Peter ZizlerBiosynthesis of Cutin and Suberin From Free Monomers: Modeling of Control Processes
14:30-14:55C640Rob CraigenTBA
14:55+C640Closing remarks
There will be space available for posters, and we invite anyone including graduate and undergraduate students interested in contributing a poster to do so. Please indicate your interest when you register, or contact Hadi Kharaghani (see below). Abstract for posters are here at the end of the other abstracts.
Financial Support for Students
Some financial support is available for a limited number of postdoctoral fellows (who have no other source of travel assistance), graduate students and senior undergraduate students. Please contact Hadi Kharaghani (see below).
All events will be held on the campus of the University of Lethbridge, Lethbridge, Alberta, Canada. To reach the University: Once in Lethbridge proceed to the west side of town (via Whoop-Up Drive [6th Street] or Highway 3) since the University is located on the western coulee banks of the Old Man River. If coming from the west on Highway 3 look for the Highway 25 exit south, which is just before the river valley.

The closest parking for participants is available in Lot K just uphill from the north entrance of University Hall. To get there turn onto campus at the major intersection (4 ways with traffic lights NOT the tee intersection) and follow the road eastward until it veers right - lot K is an immediate left turn. On weekends parking is free. If you wish to park on campus weekdays before or after the workshop for longer than an hour we recommend Lot N where the rate is $6/day. See campus map.

The sessions are in the long main building (University Hall - pale yellow on the campus map) which is nestled in the coulees to the east near the river, down from the level of the prairies.


The University of Lethbridge Conference Services offers very good rates on excellent apartment and town house suites situated on the campus and only minutes from the meeting facilities. The apartment suites have full kitchens (no kitchenware is supplied) as well as ensuite washroom facilities configured in a two or four bedroom configuration. Here is a photo of the common area of a typical suite.

The rates (in 2010) were $50 per person per night for a nice one bedroom apartment or $132 per night for a 3 bedroom townhouse suitable for sharing. For rates, other options and more detailed information see Conference Services. There are also floor plans and views of the suites by selecting either the Aperature Apartments or Aperture Townhouses here.

If you would like to make reservations, please select from:

Payments can be made by cash, money order or Visa/Mastercard.

For off-campus accommodation, University visitors frequently stay at Lethbridge Lodge. This hotel is located downtown, a five minute drive from the University, or about a 30 minute walk from the University through parkland along the river. There are no hotels in West Lethbridge or closer to the University, however, there are many other hotels and motels available, such as in the Days Inn or the Holiday Inn Express downtown. To check out alternatives visit alternate accommodation. Hotels along Mayor Magrath Drive are relatively far away and you would require vehicle transportation to get to the University. Public transit is available to and from the University, but service is limited on weekends especially on Sunday.

Tourist Information
Note that scenic Waterton National Park in the Rocky Mountains, about an hour and twenty minutes drive south-west of Lethbridge, is a highly recommended outing for those wishing to extend their stay with some pre or post workshop sightseeing.

Head-Smashed-In Buffalo Jump, a UNESCO World Heritage Site located just outside of Fort Macleod 30 minutes west of Lethbridge is also highly recommended.

Writing-on-Stone Provincial Park about an hour and a half south-east of Lethbridge has petroglyphs and pictographs, and some impressive the sandstone hoodoos.

Glacier National Park is just an hour and a half south-west of Lethbridge, for those willing to brave the surly American border officials. Going-to-the-Sun Road in the park is one of the most scenic roads in the U.S. North-West but it is only open from late May to early September (consider the free park shuttle available from the visitor center at the east park entrance).

In Lethbridge, the Nikka Yuko Japanese Gardens are a top attraction, as well as, Indian Battle Park and Fort Whoop-Up Interpretive Centre in the river valley down from the University.


To register, or update or cancel your registration:

    Registration closed!

The registration fee for the meeting will be $50 in cash collected at the meeting.

Conference package
This is the approximately 10 page handout for the meeting consisting of the title page, schedule and abstracts.
If you have questions please send e-mail to Hadi Kharaghani at kharaghani at uleth dot ca or write to:
  WCLAM (Western Canada Linear Algebra Meeting) 2012,
  Dept. of Mathematics and Computer Science,
  University of Lethbridge,
  Lethbridge, Alberta   T1K 3M4

  FAX:            (403) 317-2882
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Participants and Group Photos
See here for list of participants.

Select your preferred group photos:

 reasonable sizeperson keylarge high resolution (5MB)
with viaduct:photokeyhigh resolution photo
with University Hall:photokeyhigh resolution photo

Many thanks to everyone!

Clams by Nico Holzmann (C) 2010 Dec 17
"Clams" by Nico Holzmann (C) 2010 December 17
Page top image: Snowpatch, Bugaboo and Howser Spires from Rockypoint Cr., Brisco B.C. August 2010 (C) W.H.
Last update:
2013 November 22