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Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

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Page 1: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Personal

PresentationYIRAN LI

APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING

SEP. 18, 2014

Page 2: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Hometown

Jinan, Shandong China

The Spring City

Page 3: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Hometown of Confucius

and people like to drink from spring

Page 4: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Interests and hobbies

Travel

Playing the piano

Some sports

movies and animes

Page 5: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Favorite Composers

Wolfgang Amadeus Mozart

Ludwig van Beethoven

Claude Debussy

Maurice Ravel

Frédéric Chopin

Johannes Brahms

Yoko Kanno

Joe Hisaishi

Page 6: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Education

University of Miami 2009-2010 Mathematics,

Economics

Bachelors, Cornell University 2011-2013

Mathematics, Economics

Had a culture/weather shock

Page 7: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014
Page 8: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Research Experience

Summer REU, Cornell University 2012 with

Professor Robert S. Strichartz

Hodge-de Rham Theory of K-Forms on Carpet

Type Fractals

Summer Research, University of Maryland 2014

with Professor Maria Cameron

Separation of data sets using Principle

Component Analysis and Stochastic Processes

Page 9: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Sierpinski Carpet Define real valued functions on 0 forms (vertex), 1 forms (edges) and

2 forms (squares)

Vector spaces of functions of 0, 1, 2 forms

Page 10: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

The Magic Carpet

Page 11: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Definition of Laplacian on Graphs

and more

Page 12: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Programmed to calculate eigenvalues

and eigenfunctions of laplacians on 0, 1, 2

forms

Visualized and calculated numerically the

convergence of eigenfunctions when go

into upper level

Found evidence in support for Hodge De

Rham Theory on Fractals (Seirpinski Carpet

and Magic Carpet)

Page 13: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Weyl ratio of eigenvalues of SC 0

forms

Page 14: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Eigenfunctions of 0 forms and 2 forms on

Seirpinski Carpet

Page 15: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Eigenfunctions of 0 forms and 2 forms on

Magic Carpet

Page 16: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

Data Separation method using

markov chains and PCA

Page 17: Personal Presentation - University Of Marylandide/data/teaching/amsc663/14fall/a… · Personal Presentation YIRAN LI APPLIED MATH, STATISTICS AND SCIENTIFIC COMPUTING SEP. 18, 2014

3D Version