Presentation is loading. Please wait.

Presentation is loading. Please wait.

TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS

Similar presentations


Presentation on theme: "TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS"— Presentation transcript:

1 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS
ABSTRACT TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS Petar Pavešić, University of Ljubljana Topological complexity of a map was initially introduced as a measure of the manipulation complexity of a mechanical device with a given forward kinematic map. The resulting concept is not homotopy invariant because kinematic maps that appear in robotics usually have singularities. On the other hand, the topological complexity of a fibration is homotopy invariant, so we may consider the approximation of the topological complexity of an arbitrary map by the topological complexity of the associated fibration. In our talk we will discuss the topological complexity of fibrations and their relation with the complexity of general maps. In particular, we will consider the important special case of covering maps and their complexity. Bedlewo 1

2 Review of TC(X) TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS
2

3 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS REVIEW OF TC(X)
3

4 TC of a map TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS
4

5 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS TC OF A MAP
5

6 A x TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS TC OF A MAP
6

7 y A TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS TC OF A MAP
7

8 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS
INVARIANCE Invariance TC=2 TC=1 8

9 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS INVARIANCE
9

10 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS INVARIANCE
10

11 Cohomological estimate
TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS COHOMOLOGICAL ESTIMATE Cohomological estimate 11

12 Fibrations dimension-connectivity estimate
TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS FIBRATIONS Fibrations dimension-connectivity estimate 12

13 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS FIBRATIONS
13

14 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS FIBRATIONS
14

15 Coverings TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS
15

16 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS COVERINGS
16

17 TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS
THE END 17


Download ppt "TOPOLOGICAL COMPLEXITY OF FIBRATIONS AND COVERING MAPS"

Similar presentations


Ads by Google