MEETING-DATE:March 2, 2017 MEETING-LOCATION:DC 1331 MEETING-TIME:10:30 MEETING-CHAIR:Bill Cowan MEETING-CHAIRPIC:bill.png COFFEE-HOUR-LAST-WEEK:JC - Thanks! COFFEE-HOUR-THIS-WEEK:Volunteers? COFFEE-HOUR-NEXT-WEEK:Volunteers? FORTH-DATE1:March 9, 2017 FORTH-DATE2:March 16, 2017 FORTH-DATE3:March 23, 2017 FORTH-DATE4:March 30, 2017 FORTH-LOCATION1:DC 1331 10:30 FORTH-LOCATION2:DC 1331 10:30 FORTH-LOCATION3:DC 1331 10:30 FORTH-LOCATION4:DC 1331 11:30 FORTH-CHAIR1:Sean Davis FORTH-CHAIR2:Terence Dickson FORTH-CHAIR3:Xiang Fang FORTH-CHAIR4:Ryan Goldade FORTH-CHAIRPIC1:mouse.jpg FORTH-CHAIRPIC2:frog.jpg FORTH-CHAIRPIC3:tjlahey.gif FORTH-CHAIRPIC4:ryan.jpg FORTH-TP1:Bill Cowan FORTH-TP2:Sean Davis FORTH-TP3:Terence Dickson FORTH-TP4:Xiang Fang FORTH-TPPIC1:bill.png FORTH-TPPIC2:mouse.jpg FORTH-TPPIC3:frog.jpg FORTH-TPPIC4:tjlahey.gif TPNAME:Christopher Batty TPTITLE:YAAPS: Yet Another Adaptive Poisson Solve TPABSTRACT:I will discuss a recent SIGGRAPH submission of mine, in collaboration with some folks at UW-Madison, regarding (you guessed it!) fluid simulation. The central goal is to construct an efficient spatially adaptive discretization of the Poisson problem on octrees, which we use to enforce liquid's incompressibility, while preserving 2nd order accurate pressures; visually this corresponds to artifact-free, smooth flows. The "trick" is to conceptually convert the octree structure into a power diagram (a relative of the Voronoi diagram) which has some useful geometric properties in this setting. TPPIC:batty.jpg DIONE: DITWO: DITHREE: DIFOUR: AIONE: AITWO: AITHREE: AIFOUR: LEONE: LETWO: LETHREE: LEFOUR: DMONE: DMTWO: DMTHREE: DMFOUR: SEMINARS:
Thursday, 2 March 2017, 1:30PM - Pure Mathematics (Number Theory Seminar), M3-3103 [Newish] Patrick Ingram: -- “The critical height of a rational function” Thursday, 2 March 2017, 2:30PM - Applied Mathematics , MC 5417 [Newish] Prof. N. Sri Namachchivaya: -- Random and Data Driven Dynamical Systems Friday, 3 March 2017, 2:00PM - Computer Science (Bioinformatics Group), DC 1316 Guangyu Feng: -- Information Distance as Semantic Distance with Approximation Methods and Applications in Question Answering Friday, 3 March 2017, 3:30PM - Combinatorics and Optimization , Math & Computer, Room 5501 [Newish] Dr. Chris Godsil: -- Something for everybody: graph homomorphisms, vector colourings, strongly regular graphs, semidefinite programs and the strong Arnold conditionMonday, 6 March 2017, 10:30AM - Computer Science , DC 1304 Amir Herzberg: -- Securing Internet Routing Tuesday, 7 March 2017, 3:30PM - Computer Science , DC 1304 Carlo H. Séquin: -- Artistic Geometry Tuesday, 7 March 2017, 4:00PM - Statistics & Actuarial Science (Waterloo Research Institute in Insurance, Securities and Quantitative Finance), Mathematics 3, Room M3 3127 [Newish] Professor Xinfu Chen: -- Free Boundary Problems in Mathematical Finance Thursday, 9 March 2017, 4:00AM - Combinatorics and Optimization , Math & Computer, Room 5479 [New!] Dr. Bruce Richter: -- Pseudospherical Drawings of Complete Graphs in the Sphere Friday, 10 March 2017, 1:00PM - Computer Science (ISS4E), DC 1331 Florian Kerschbaum: -- Privacy in the Smart Grid / Road Toll Collection