Krzysztof Ciesielski's


Some resent presentations



  1. Continuous, differentiable, and twice differentiable functions: How big are the gaps between these classes?, June 2012.

  2. On functions on Rn continuous when restricted to nice curves or surfaces, October 2012.

  3. The Minimum Barrier Distance Transform, November 2012.

  4. Delineating objects in images via minimization of lp energies; spanning forests via Dijkstra's and Kruskal's algorithms, May 8, 2013.

  5. Delineating objects in images via minimization of lp energies: Fuzzy Connectedness, Graph Cut, and Random Walk algorithms, May 9, 2013.

  6. On functions with continuous restrictions to various sets, June 4, 2013.

  7. The Minimum Barrier Distance Transform (with new results), June 7 & 10, 2013.

  8. Differentiability on perfect subsets P of R; Smooth Peano functions from P onto P2, July 4-6, 2013.

  9. Separate continuity and its generalizations history, recent progress, and open problems, October 15, 2013. (Extended version of the talk Differentiability on perfect subsets P of R; Smooth Peano functions from P onto P2.)

  10. New Results on the Minimum Barrier Distance, April 11, 2014. (A version of the talk The Minimum Barrier Distance Transform.)

  11. Generalized distances in image segmentation, July 26, 2014. (Version of the talks The Minimum Barrier Distance Transform and Delineating objects in images via minimization of lp energies; spanning forests via Dijkstra's and Kruskal's algorithms.)

  12. General theory of fuzzy connectedness segmentations: reconciliation of two tracks of FC theory, March 6, 2015.

  13. An auto-homeomorphism of a Cantor set with zero derivative everywhere, June 8-13, 2015.

  14. Characterization of the path cost functions for which Dijkstra algorithm returns desired optimal mapping, UPenn, December 17, 2015.

  15. Lineability and additivity cardinals for real-valued functions: old results and new developments, Madrid, February 9, 2016.

  16. K.C. Ciesielski and J. Jasinski, Fixed point theorems for maps with various local contraction properties, Twelfth Symposium on General Topology Prague, July 25-29, 2016. Presented by J. Jasinski.

  17. K.C. Ciesielski, Minimal degree of Genocchi-Peano function of n variables, Combinatorics seminar, WVU, November 9, 2016.

  18. Path-value functions for which Dijkstra's algorithm returns optimal mapping, UPenn, December 15, 2016.

  19. Differentiable pointwise contractive minimal dynamical systems, 51st Spring Topology Conference, Jersey City, NJ, March 10, 2017.

  20. Locally contractive maps and fixed point theorems, 51st Spring Topology Conference, Jersey City, NJ, March 10, 2017. Presented by J. Jasinski.

  21. Fuzzy connectedness segmentations with different non-symmetric affinities, University of Campinas, Brazil, May 19, 2017.

  22. Differentiability versus continuity: monstrous examples and extension theorems, Summer Symposium in Real Analysis XLI, The College of Wooster, Wooster, OH, June 18--24, 2017.

  23. Differentiable pointwise contractive auto-homeomorphism of a Cantor set, Pitt Topology Conference, June 24-25, 2017.