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.

  24. Locally contractions and fixed point theorems, Real Functions Seminar, University of Gdansk, Poland, November 21, 2017. Presented by J. Jasinski.

  25. Less than continuum-many continuous functions that almost cover every continuous function, Pitt Conference on Function Spaces, February 10, 2018.

  26. Differentiability versus continuity: Restriction and extension theorems and monstrous examples, Summer Symposium in Real Analysis XLII, The White Nights Symposium, Saint-Petersburg, Russia, June 10, 2018. Version with pauses.

  27. Higher level differentiability: Generalized Ulam-Zahorski problem and small coverings by smooth maps, Summer Symposium in Real Analysis XLII, The White Nights Symposium, Saint-Petersburg, Russia, June 11, 2018. Version with pauses.

  28. Hierarchical segmentation in a directed graph setting which optimizes a graph cut energy, ESIEE, Paris, France, September 5, 2018. Version with pauses.

  29. Hierarchical segmentation in a directed graph setting which optimizes a graph cut energy, Centre for Image Analysis, Uppsala University, Sweden, September 10, 2018. Version with pauses.

  30. Path-value functions for which Dijkstra's algorithm returns optimal mapping, Department of Mathematics, CoSy, Uppsala University, Sweden, September 11, 2018. Version with pauses.

  31. Hierarchical segmentation in a directed graph setting which optimizes a graph cut energy, MIPG Seminar, UPenn, November 1, 2018. Version with pauses.

  32. Differentiability versus continuity: Restriction and extension theorems and monstrous examples, Colloquium at Universidad Complutense de Madrid, Spain, November 8, 2018. Version with pauses.

  33. Tutorial on Martin's Axiom, by example, Workshop: Topological and Algebraic Genericity II, Spain, November 13, 2018. Version with pauses.

  34. Optimization of Max-Norm Objective Functions in Image Processing and Computer Vision, MIPG Seminar, UPenn, March 7, 2019. Version with pauses.

  35. Graph-based Segmentation with Local Band Constraints, 21st International Conference on Discrete Geometry for Computer Imagery, DGCI 2019, Paris, France, March 26, 2019. Talk delivered by a coauthor, Caio de Moraes Braz.

  36. Optimization of Max-Norm Objective Functions in Image Processing and Computer Vision, 21st International Conference on Discrete Geometry for Computer Imagery, DGCI 2019, Paris, France, March 28, 2019. Talk delivered by a coauthor, Filip Malmberg.

  37. Efficient algorithms for max-norm and lexicographically optimized labelings, University of Sao Paulo, Brazil, May 27, 2019. Version with pauses.

  38. Efficient algorithms for max-norm and lexicographically optimized labelings, University of Campinas, Brazil, May 30, 2019. Version with pauses.

  39. Efficient algorithms for max-norm and lexicographically optimized labelings, Universidade Federal de Sao Paulo UNIFESP, Sao Jose dos Campos, Brazil, June 3, 2019. Version with pauses.

  40. A century of Sierpinski-Zygmund functions, 34th Summer Conference on Topology and its Applications, Johannesburg, South Africa, July 3, 2019. Version with pauses.

  41. Differentiability versus continuity: Restriction and extension theorems and monstrous examples, Function Theory on Infinite Dimensional Spaces XVI, Madrid, Spain, November 19, 2019. Version with pauses.

  42. Differentiability versus continuity: What good Calc 1 student may ask about, Colloquium, Math Department, WVU, December 4, 2019. Version with pauses.

  43. Linearly continuous maps discontinuous on the graphs of twice differentiable functions, 44th Summer Symposium in Real Analysis XLII, Paris and Orsay, France, June 21, 2022. Version with pauses.