Jerzy Kocik aka Jurek Pronunciation: Yeh-zhi Ko-cheek, You-reck postal address, contact, etc E-mail:jkocik ( at ) siu.edu Interests Apollonian gasket (geometry, algebra and number theory) (see Seminar Pages) Geometric structures on Lie algebras Differential geometry and physics Discrete structures (graphs, orders, language) Papers and preprints [ResearchGate, ArXiv, Orcid] talks

Miscellanea Apolloniana: page on Apollonian disk packings. Apollonian blog, including preprints, on the Apollonian disk packings.   Lie mandala: a diagram that shows the structure of a Lie algebra. Graphs we live by   (graphs known not only in math) 1+1=2     (Get-Stankiewicz's Marble Plaque in Honor of Elementary Operations) 3+4=7     (a humoresque) History of the concept of time   (a poster) Physics of time machines   (bibliography, classification) Universal constants: a remark on h, c & G. Triangle   (varia on trig and triangle) Grad-curl-div in one diagram!   (deeper meaning of Calc III) -- New: with MathJax! Soon to be added: Tense system as a model of time (a theory of the grammatical tense)   A few items in Polish

What's new A MINI-BLOG     (scroll)

Current Courses

Math 433 -- Geometry Math 221 -- Intro to Linear Algebra

MORE LINKS

Life on manifolds Diff Geom Seminar temporarely suspended

Potpourri seminar (AG&RA) Thursday's 2pm

MATH TOOLS learning Jupiter and other computer tools

MATH OUTLET bits and pieces Blog

Seminar on Apollonian Window

1+1=2	Classical Mechanics	Lie mandala	graphs we live by	cosmic const

E-mail: jkocik@siu.edu.