Conferences and Travels

Upcoming Events:

• Commutative Algebra and Representation Theory (in honor of Jerzy Weyman), 13 - 17 October 2025, Kraków.

• Konferencja Władz Uczelnianych Matematyki i Informatyki (administration matters), 24 - 25 October 2025, Gdańsk.

• K-stability and equivariance birational geometry, 19 - 25 April 2026, Edinburgh.

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Past Events:

1. 1. 1. 1. Workshop on Modern Applied Mathematics, Cracow University of Technology, 23 - 24 November 2012, Kraków.

         2. XXXIV Conference and Workshop "Analytic and Algebraic Geometry", 7 - 11 January 2013, Łódź, Talk: "Some equations related to rank functions".

         3. Workshop on "Alpha Problem", 8 - 11 February 2013, Lanckorona.

         4. Syzygies in Berlin, 27 - 31 May 2013, Freie Universitat Berlin (Talk: Points Fattening on projective spaces).

         5. XXXVI Autumn School in Algebraic Geometry "Power sum decompositions and apolarity, a geometric approach", 1 - 7 September 2013, Łukęcin.

         6. Workshop on "Alpha Problem", 12 - 15 September 2013, Lanckorona.

         7. Okounkov bodies and Nagata type conjectures, Banach Center Warsaw, 22 - 28 September 2013, Talk: "0-dimensional schemes with low fattening effect on projective surfaces".

         8. Workshop on Modern Applied Mathematics, Cracow University of Technology, 18 - 20 October 2013, Kraków.

         9. IMPANGA School 10 -19 December 2013, Izzet Coskun (University of Illinois at Chicago) - The Geometry of Homogeneous Varieties.

         10. Felix Klein Lectures The Equations Defining Projective Varieties by Robert Lazarsfeld, 6 - 22 January, 2014, Bonn.

         11. Mini course on Shimura varieties, 13 - 17 January, 2014, Bonn.

         12. Negative Curves on Algebraic Surfaces, 23 February - 1 March 2014, Oberwolfach, Talk: "Real counterexample to $I^{(3)} \subset I^{2}$ containment and line arrangements".

         13. Workshop on line configurations, 24 - 26 April, Lanckorona.

         14. AN INTERDISCIPLINARY APPROACH TO TENSOR DECOMPOSITION, 14 - 18 June 2014, Trento, Talk: "Symbolic powers of ideals versus Bounded Negativity Conjecture".

         15. Complex Analysis and Geometry, FRIAS, 21 - 23 August 2014, Freiburg im Breisgau.

         16. British Algebraic Geometry Meeting, 22 - 24 September 2014, Warwick, Poster: Local Negativity and Containment Problems.

         17. Birational Methods in Hyperkahler Geometry, 1 - 5 December 2014, Bonn, SFB 45 Transregio and Hausdorff Center for Mathematics.

         18. Algebraic Geometry in Warsaw, 1960 - 2015, 19 - 20 March 2015, Warsaw.

         19. IMPANGA 15 Conference, 12 - 18 April 2015, Bedlewo, Poster: Local negativity and the Bounded Negativity Conjecture.

         20. Oblicza Algebry, 29 - 31 May 2015, Cracow, chairman of a thematic session.

         21. GAeL XXIII, 1 - 5 June 2015, Leuven, Talk: "Negative curves on blow ups of $\mathbb{P}^2$".

         22. AMS Summer Institute in Algebraic Geometry, 13 July - 25 July 2015, Salt Lake City, USA, Poster: "Recent developements on the Bounded Negativty Conjecture|.

         23. Summer School Cones and Positivity, 4 - 7 August 2015, Loughborough, UK.

         24. Cox rings and Mori Dream Spaces, 6 - 12 September 2015, Łukęcin, Poland.

         25. Arrangements of Subvarieties, and their Applications in Algebraic Geometry, 28 February - 5 March 2016, MFO Oberwolfach, Germany, Talk: "Local Negativity, Curve Arragements and Harbourne constants".

         26. Workshop Higher Codimension Cycles on Algebraic Varieties, 11 - 13 March 2016, Chicago.

         27. British Algebraic Geometry Meeting II, 13 - 15 April 2016, Edinburgh, Poster: "On the Bounded Negativity Conjecture".

         28. miniPAGES Workshop Asymptotic Invariants attached to linear series, I am a co-organizer of this event, 16 - 21 May 2016, Kraków.

         29. CIMI Toulouse New Methods in Birational Geometry, 22 June - 1 July 2016, Toulouse, France, Poster: "On the Bounded Negativity Conjecture".

         30. Summer School Geometry of Valuations, 4 - 8 July 2016, Frankfurt, Germany.

         31. Workshop on Algebraic Surfaces, 15 - 16 September 2016, Hannover, Germany.

         32. Newton-Okounkov bodies, Test Configurations and Diophantine Geometry, 5 - 10 February 2017, Banff Alberta, Canada.

         33. Geometry, Algebra and Combinatorics of Moduli Spaces and Configurations, 19 - 25 February 2017, Toblach, Talk: "The Bounded Negativity Conjecture and Harbourne indices".

         34. Workshop on the local negativity and positivity of algebraic surfaces, 7 - 10 March 2017, Hannover - I was a co-organizer of this event.

         35. Combinatorics of hyperplane arrangements, 19 - 21 April 2017, Hannover, I am co-organizing this event with Prof. M. Cuntz from Hannover.

         36. Barcelona Algebraic Geometry Seminar + research visit, 4 - 9 June 2017, Barcelona, Spain.

         37. Advances in Hyperplane Arrangements, 16 - 18 August 2017, Bremen, Germany.

         38. 40th Autumn School in Algebraic Geometry "Binomial Ideals", 3 - 9 September 2017, Lukecin, Poland.

         39. Modern and Classical Aspects on Algebraic Surfaces, 23 - 27 April 2018, Cracow, I am a co-organizer of this conference & school.

         40. Motives of Calabi-Yau manifolds, 19 - 21 May 2018, Cracow.

         41. PhD defence & Seminar Talk, 30th May - 1st June 2018, Hannover. Talk: "Logarithmic Chern numbers and log-surfaces".

         42. Combinatorial Algebraic Geometry Retrospective Workshop, 18 - 22 June 2018, Toronto, Fields Institute.

         43. Joint meeting of the Italian Mathematical Union, the Italian Society of Industrial and Applied Mathematics and the Polish Mathematical Society, 17 - 20 September 2018, Wrocław (invited speaker).

         44. VAT Conference, 23 - 29 September 2018, Warsaw.

         45. EDGE 2018 Workshop "Constructions and Obstructions in Birational Geometry", 5 - 9 November 2018, Edinburgh (invited speaker).

         46. Algebraic Geometry & Combinatorics (Working Groups Workshop), 21 - 25 January 2018, Loughborough (invited lecturer).

         47. CIRM "Ball-quotient surfaces and lattices", 25 February - 1 March 2019, Marseille (invited speaker).

         48. Oblicza Algebry, 6 - 9 June 2019, Kraków, Talk: "Konstrukcje układów krzywych na zespolonej płaszczyźnie rzutowej w kontekście dywizorów wolnych".

         49. Workshop Mirror Symmetry and Fano varieties II, 25 - 27 September, Chicheley Hall (England).

         50. Analytic and Algebraic Geometry Conference, 6 - 10 January 2020, Łódź, Talk: "On the weighted bounded negativity conjecture".

         51. Geometry, Algebra and Combinatorics of Moduli Spaces and Configurations IV, 23 - 28 February 2020, Toblach.

         52. Research Visit, Santiago de Chile, 13 - 22 March 2020, Research Talk on SANTAS -- cancelled due to COVID-19.

         53. EDGE Seminar Online, Invited Talk: Conic-line arrangements in the complex projective plane, 31 March 2020, worldwide via ZOOM.

         54. WAGON (WESTERN ALGEBRAIC GEOMETRY ONLINE), 18 - 19 April 2020, worldwide via ZOOM.

         55. Arrangements at Home II: Cohomology Jump Loci, 11 - 12 June 2020, worldwide via ZOOM, Talk: "Conic-line arrangements in the plane".

         56. Arrangements at Home III, 13 - 14 August 2020, worldwide via ZOOM.

         57. Complex and symplectic curve configurations, 13 - 17 July 2020, Djursholm, Mittag-Leffler Institute (Sweden) - I should be one of the organizers of this event, cancelled due to COVID-19. 

         58. Lefschetz Properties in Algebra, Geometry and Combinatorics, 27 September - 3 October 2020, MFO, Talk: "Unexpectedly found unexpected curves".

         59. 17th Virtual Seminar on Commutative Algebra and Related Topics, 6-8 January 2021, Teheran (via Google Meet).

         60. Logarithmic Vector Fields and Freeness of Divisors and Arrangements: New perspectives and applications, MFO Conference, 24 - 30 January 2021, Talk: "Unexpected curves and line arrangements".

         61. DAAD Scholarship Research Visits for Scholars and Academic Staff, 30 January - 5 March 2021, Osnabrueck.

         62. 8 ECM Slovenia (but online), 20-26 June 2021, Minisymposia Invited Speaker MS-ID 81 Configurations, Talk: "Hirzebruch-type inequalities and extreme point-line configurations".

         63. MEGA 2022 in Cracow, 20 - 24 June 2022, I was one of the organizers for this great event.

         64. Recent Advances in Classical Algebraic Geometry, 28 June - 2 July 2022, I was one of the organizers for this event.

         65. Algebraic Combinatorics 2022, 11-15 July 2022, Kraków.

         66. Real algebraic geometry and singularities. Conference in honor of Wojciech Kucharz's 70th birthday, Kraków, 10 - 17 September 2022, Talk: "Nearly-free and free reduced plane curves".

         67. EDGE 2022, 21 - 25 November 2022, ICMS Edinburgh (UK), Talk: "Maximizing Curves".

         68. XLIII KONFERENCJA I WARSZTATY „GEOMETRIA ANALITYCZNA I ALGEBRAICZNA”, 9 - 13 stycznia 2023, Łódź, Talk: "Maksymalizujące krzywe płaskie".

         69. Simons Foundation Conference on Higher Dimensional Geometry, Stony Brook (USA), 8 - 12 May 2023.

         70. Oblicza Algebry V, 1 - 4 June 2023, Kraków.

         71. Moduli and Friends ZOOM Seminar, 26 June 2023, Bucharest, Talk: "On the freeness of conic-line arrangements".

         72. 60LB Geometry and Singularities - 60th anniversary of Lev Birbrair, Będlewo, 16 - 20 July 2023.

         73. Moduli and Friends, Bucharest, 11 - 15 September 2023, Talk: "Maximizing plane curves".

         74. GKLW Mini Workshop in Singularity Theory, Krakow, 1 - 2 December 2023, Iagiellonian University Krakow, Talk: "Numerical Terao's Conjecture and the freeness of rational curve arrangements".

         75. IMPAN Seminar in Cracow, 19.12.2023, Talk: "Miyaoka-Kobayashi curves".

         76. XLIV Konferencja i Warsztaty "Geometria analityczna i algebraiczna", 8 - 12 January 2024, Łódź, Talk "O wolnych układach prostych, stożkowych i krzywych stopnia trzeciego".

         77. Moduli and Friends ZOOM Seminar, 20th May 2024, Bucharest, Talk: "Construction of free arrangements using point-line operators".

         78. Varieties with Boundries, 25 - 28 June 2024 Wakkanai (Japan), Talk: "On the geography of log-surfaces".

         79. XXIV Coloquio Latinoamericano de Álgebra, 22-26 July 2024, Santiago (Chile), Algebraic Geometry Session Invited Speaker, Talk: "Rational curve arrangements: geometry and combinatorics".

         80. 9. Forum Matematyków Polskich, 9-13 września 2024, Katowice, GKLW Session Invited Speaker.

         81. Syzygies and Hilbert Schemes in Krakow, 24 - 28 September 2024, Kraków.

         82. GKLW Mini-Workshop in Singularity Theory, Gdańsk, 13 - 14 December 2024.

         83. XLV Konferencja i Warsztaty "Geometria Analityczna i Algebraiczna", Łódź, 6 - 10 January 2025, Talk: "Poincare polynomials of plane curves"

         84. Algebraic Geometry in Hannover, 18 - 19 March 2025.

         85. Geometry of Arrangements Mini-Workshop, Hannover, 20 - 21 March 2025, Talk: "Poincare polynomials of plane curves with quasi-homogeneous singularities".

         86. New Perspectives on Hyperplane Arrangements, Bochum, 12 - 16 May 2025, Invited Speaker, Talk: "On the hierarchy of line arrangements".

         87. Oblicza Algebry VI, 22 - 25 May 2025, Kraków.

         88. Structures and Symmetries in Algebraic Geometry,  9 - 13 June 2025, Kraków. Apparently I am a co-organizer of this event.

         89. Summer Institute School Algebraic Geometry, Fort Collins (Colorado USA), 12 - 20 July 2025, Invited Contributed Talk Speaker: "Free curves in algebraic geometry".

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Research Visits:

1. 1. Budapest, 10 - 15 March 2014, discussions with Alex Kuronya.

   2. Marburg, 23 - 30 March 2014, joint project with David Schmitz.

   3. Hannover, 29 November - 4 December 2015, joint project with Roberto Laface.

   4. Chicago, 11 - 17 March 2016, discussions with Izzet Coskun.

   5. Essen, 16 - 17 June 2016, discussions with Daniel Greb.

   6. Barcelona, 5 - 9 June 2017, joint project with Joaquim Roe.

   7. Muenchen, 28 April 2019 - 5 May 2019, joint project with Roberto Laface.

   8. Oberwolfach Research Fellowship, 13 - 26 September 2020, Oberwolfach MFO.

   9. Osnabrueck, 26 - 30 July 2021, joint project with Tim Roemer.

   10. Budapest, 20 - 24 February 2023, joint project with Marco Golla.

   11. Bergerac, 24 - 28 April 2023, joint project with Alex Dimca.

   12. Barcelona, 2 - 6 January 2024, grant application.

   13. Max-Planck Institute fur Mathematik Bonn, 18 - 23 February 2024, joint project with Xavier Roulleau.

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