Profile

Cover photo
Alexander Bogomolny
Works at CTK Software
Attended Moscow State University
Lives in NJ, USA
93,959 views
AboutPostsPhotosVideos

Stream

Alexander Bogomolny

Shared publicly  - 
 
Flown by wind, a seed  has landed in a puddle, losing all hope to take part in evolution
1
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
A generalization of a theorem by Archimedes concerning triangle formed by tangents to parabola

http://www.cut-the-knot.org/m/Geometry/ParabolaTangentToTriangle.shtml … 
1
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
Trusting wind
1
Add a comment...
 
Abelian group of points on a circle. A geometric approach 
http://www.cut-the-knot.org/m/Geometry/CircleMultiplication.shtml
2
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
Protruding eyes - a truly salient frog's feature
1
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
The carpet of lily leaves appears floating over water
1
Add a comment...
2
1
David Turner's profile photo
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
Rectified eyeballs have projective nature, after all, with more concurrences than originally claimed

http://www.cut-the-knot.org/m/Geometry/BeyondEyeballing.shtml
2
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
Multiplication of points on a circle extends naturally to an abelian group structure on any conic; projective and analytic views.

http://www.cut-the-knot.org/m/Geometry/EllipseMultiplication.shtml
2
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
Conveying eternal wisdom in pictures: what you see is a matter of where you stand
2
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
If I had not made this picture I would not have noticed the Statue of Liberty on the horizon. As it is, it was on a straight line of view from us through the Verrazano bridge, from which it is about 5 miles away. I'd guess that we were at least twice as far from the bridge but on a hilltop. The calculations (http://en.wikipedia.org/wiki/Horizon) seem to support the observations
1
Add a comment...

Alexander Bogomolny

Shared publicly  - 
 
By 2 inversions, 2 circles (neither within the other) can be mapped onto equal circles

http://www.cut-the-knot.org/m/Geometry/InversionInInversion.shtml 
1
Add a comment...
Work
Occupation
Software and web dvelopment, most happily math related
Skills
Mathematics - applied and otherwise, programming Java and C++
Employment
  • CTK Software
    Principal, present
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
NJ, USA
Story
Tagline
Love math. Care for math education.
Education
  • Moscow State University
    MS Mathematics, 1966 - 1971
  • Hebrew University of Jerusalem
    PhD Mathematics, 1976 - 1981
Basic Information
Gender
Male