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RESEARCH INTERESTS:

 •  Heat kernel estimates;
 •  Noncolliding particle systems;
 •  Fluctuation theory;
 •  Bessel processes and its multidimensional generalizations;
 •  Potential theory of Brownian Motion and alfa-stable process on hyperbolic spaces;
 •  Relativistic alfa-stable process;
 •  Spectral theory of Cauchy process.

PUBLICATIONS:

 30. T. Byczkowski, J. Małecki, T. Żak,
      Ehrhard-type inequality for the isotropic Cauchy distribution on the plane. [online]
      Probab. Math. Stat. doi:10.37190/0208-4147.00036 (2022)
 29. K. Burdzy, J. Małecki,
      Archimedes principle for ideal gas. [online]
      Comm. Math. Phys. vo. 392, p. 185–217 (2022)
 28. J. Małecki, J. L. Perez,
      Universality classes for general random matrix flows. [online]
      Ann. Inst. H. Poincaré Probab. Statist. 58 (2), 722-754, (2022)
 27. L. Chaumont, J. Małecki,
      Density behaviour related to Lévy processes. [online]
      Trans. Amer. Math. Soc. 374 (2021), 1919-1945
 26. J. Małecki, K. Stempak,
      Reflection principles for functions of Neumann and Dirichlet Laplacians on open reflection invariant subsets of Rd. [online] [PDF]
      Studia Mathematica 251 (2020), 171-193.
 25. L. Chaumont, J. Małecki,
      The entrance law of the excursion measure of the reflected process for some classes of Lévy processes [online] [PDF]
      Acta Applicandae Mathematicae 169, p. 59–77 (2020)
 24. J. Małecki, G. Serafin,
      Dirichlet heat kernel for the Laplacian in a ball. 2[online] [PDF]
      Potential Anal. 52, p. 545–563 (2020)
 23. P. Graczyk, J. Małecki,
      On squared Bessel particle systems. [online] [PDF]
      Bernoulli 25(2), 2019, 828–847
 22. L. Chaumont, J. Małecki,
      Short proofs in extrema of spectrally one sided Lévy processes [online] [PDF]
      Electron. Commun. Probab. vol. 23 (2018), paper no. 55.
 21. P. Graczyk, J. Małecki, E. Mayerhofer,
      A characterization of Wishart processes and Wishart distributions. [online]
      Stoch. Proc. Appl. vol 128, no. 4 (2018), p. 1386-1404.
 20. K. Kaleta, M. Kwaśnicki, J. Małecki,
      Asymptotic estimate of eigenvalues of pseudo-differential operators in an interval. [online] [PDF]
      J. Math. Anal. Appl. Volume 439, Issue 2 (2016), p. 896–924
 19. J. Małecki, G. Serafin, T. Żórawik,
      Fourier-Bessel heat kernel estimates. [online] [PDF]
      J. Math. Anal. Appl. Volume 439, Issue 1 (2016), p. 91-102
 18. K. Bogus, J. Małecki,
      Heat kernel estimates for the Bessel differential operator in half-line. [online] [PDF]
      Math. Nachr. Volume 289, Issue 17-18 (2016), p. 2097–2107
 17. L. Chaumont, J. Małecki,
      On the asymptotic behavior of the density of the supremum of Lévy processes. [online] [PDF]
      Ann. Inst. H. Poincaré Probab. Statist. Volume 52, Number 3 (2016), p. 1178-1195.
 16. K. Bogus, T. Byczkowski, J. Małecki,
      Sharp estimates of Green function of hyperbolic Brownian Motion. [online] [PDF]
      Studia Math. 228 (3) (2015), p. 197-222
 15. K. Bogus, J. Małecki,
      Sharp estimates of transition probability density for Bessel process in half-line. [online] [PDF]
      Potential Analysis, Volume 43, Issue 1 (2015), p. 1-22.
 14. P. Graczyk, J. Małecki,
      Strong solutions of non-colliding particle systems [online] [PDF]
      Electron. J. Probab. 19 (2014), no. 119
 13. K. Kaleta, M. Kwaśnicki, J. Małecki,
      One-dimensional quasi-relativistic particle in the box. [online] [PDF]
      Rev. Math. Phys. vol. 25(8), 1350014 (2013),
 12. M. Kwaśnicki, J. Małecki, M. Ryznar,
      Suprema of Lévy processes. [online] [PDF]
      Annals Probab. vol. 41, no. 3B (2013), p. 2047-2065,
 11. T. Byczkowski, J. Małecki, M. Ryznar,
      Hitting times of Bessel processes [online] [PDF]
      Potential Anal. vol. 38 (2013), p. 753–786
 10. M. Kwaśnicki, J. Małecki, M. Ryznar,
      First passage times for subordinate Brownian motions. [online] [PDF]
      Stoch. Proc. Appl. vol. 123, no. 5 (2013), p. 1820–1850
  9. P. Graczyk, J. Małecki,
      Multidimensional Yamada-Watanabe theorem and its applications to particle systems [online] [PDF]
      J. Math. Phys. 54, 021503 (2013)
  8. T. Byczkowski, J. Chorowski, P. Graczyk, J. Małecki,
      Hitting half-spaces or spheres by the Ornstein-Uhlenbeck type diffusions. [online] [PDF]
      Colloq. Math. 129 (2012), p. 145-171
  7. J. Lorinczi, J. Małecki,
      Spectral properties of the massless relativistic harmonic oscillator [online] [PDF]
      J. Differential Equations 253 (2012), p. 2846–2871
  6. J. Małecki, G. Serafin,
      Hitting hyperbolic half-space. [online] [PDF]
      Demonstratio Mathematica 45(2) (2012), p. 337-360
  5. T. Kulczycki, M. Kwaśnicki, J. Małecki, A. Stós,
      Spectral properties of the Cauchy process on half-line and interval. [online] [PDF]
      Proc. London Math. Soc. (2010) 101(2): p. 589-622
  4. T. Byczkowski, J. Małecki, T. Żak,
      Feynman-Kac formula, λ–Poisson kernels and λ-Green functions of half-spaces and balls in hyperbolic spaces. [online] [PDF]
      Colloq. Math. 118 (2010), p. 201-222,
  3. T. Byczkowski, J. Małecki, M. Ryznar,
      Hitting half-spaces by Bessel-Brownian diffusions [online] [PDF]
      Potential Anal. vol. 33 no. 1 (2010), p. 47-83,
  2. T. Byczkowski, J. Małecki, M. Ryznar,
      Bessel potentials, hitting distributions and Green functions [online] [PDF]
      Trans. Amer. Math. Soc. 361 (2009), p. 4871-4900,
  1. T. Byczkowski, J. Małecki,
      Poisson kernel and Green function of the ball in real hyperbolic spaces [online] [PDF]
      Potential Anal. vol.27 no.1 (2007), p. 1-26,
 
   HABILITATION THESIS:
    "Potential theory of Bessel processes in half-lines",
      Wroclaw University of Science and Technology (20.12.2016)

   DOCTORAL DISSERTATION:
    "Potential theory on hyperbolic spaces",
      Wroclaw University of Technology (03.06.2008)

   MASTER'S THESIS:
    "Teoria potencjału na przestrzeniach hiperbolicznych",
     Wroclaw University of Technology (18.06.2005)
 

PARTICIPATION IN CONFERENCES:

 •  "Mini-Workshop: Free Probability and Related Topic", Tokio, Japan (13 - 14 August 2019)
         talk: Matrix-valued SDEs and free diffusions.
 •  "Stochastic Analysis, Random Fields and Integrable Probability", Fukuoka, Japan (31 July - 9 August 2019)
         talk: Universality classes for general random matrix flows.
 •  "Stochastic Processes and their Applications", Evaston, USA (8-12 July 2019)
         talk: Universality classes for general random matrix flows.
 •  "9th International Conference on Stochastic Analysis and Its Applications", Bielefeld, Germany (3 - 7 September 2018)
         talk: Particle systems, empirical measures and free diffusions.
 •  "Mini-workshop: Modern theory of particle systems", Wroclaw (27 June - 29 June 2018)
         talk: Convergence of empirical measures for eigenvalues of general matrix-valued processes.
 •  "Workshop on PDEs/SPDEs and Functional Inequalities II", Warsaw (4 June - 6 June 2018)
         talk: Symmetric polynomials and stochastic particle systems.
 •  "Workshop on PDEs/SPDEs and Functional Inequalities I", Będlewo (22 Apr - 28 Apr 2018)
         talk: Particle systems and related empirical measures.
 •  "1st Mexico-Poland meeting in probability", CIMAT, Guanajuato, Mexico (27 Nov - 1 Dec 2017)
         talk: Particle systems and related empirical measures.
 •  "The 8th International Conference on Lévy Processes", Angers, France (25-29 July 2016)
         talk: On suprema of Levy processes
 •  "3rd Conference on Nonlocal Operators and Partial Differential Equations", Bedlewo, Poland (June 2016)
          talk: Bessel heat kernel estimates
 •  "Probabilistic Aspects of Harmonic Analysis", Bedlewo, Poland (May 14-21, 2016)
          talk: Matrix processes, eigenvalues and symmetric polynomials
 •  "6th Forum of Polish Mathematician", Warsaw, Poland (September 2015)
          talk: Metody analityczne i probabilistyczne w szacowaniach jader ciepła dla operatorów Bessela
 •  "38th Conference on Stochastic Processes and Their Applications", Oxford, UK (July 2015)
          talk: On the asymptotic behavior of the density of the supremum of Levy processes;
 •  "Probability and Analysis", Będlewo, Poland (May 2015)
          talk: On the asymptotic behavior of the density of the supremum of Levy processes;
 •  "XIII Conference on Probability Theory", Będlewo, Poland (May 19-23, 2014)
          talk: Bezkolizyjne układy cząstek;
 •  "5th International Conference on Stochastic Analysis and Its Applications", Bonn, Germany (September 2011)
          talk: Suprema of Levy processes;
 •  "34th Conference on Stochastic Processes and Their Applications", Osaka, Japan (September 2010)
          talk: Hitting half-spaces by Bessel-Brownian diffusions;
 •  "4th International Conference on Stochastic Analysis and Its Applications", Osaka, Japan (August 2010)
          talk: Hitting half-spaces by Bessel-Brownian diffusions;
 •  "Nonlocal operators and partial differential equations", Będlewo, Poland (June 2010)
 •  "The Józef Marcinkiewicz Centenary Conference", Poznan, Poland (June 2010)
          talk: Hitting half-spaces by Bessel-Brownian diffusions;
 •  "Analysis, Geometry and Probability related to Group Actions", Zakopane, Poland (April 2010)
          talk: Hitting half-spaces by Bessel-Brownian diffusions;
 •  "Séminaire tournant des Pays de La Loire", Le Mans, France (March 2010)
          talk: Spectral properties of the Cauchy process killed upon exit from interval and halfline;
 •  "XXVIII International Seminar on Stability Problems for Stochastic Models", Zakopane, Poland (June 2009)
          talk: Hitting distribution of geometric Brownian motion;
 •  "Workshop: Schrödinger operators and stochastic processes", Wrocław, Poland (May 2009)
          Talk: On potential theory on hyperbolic spaces;
 •  "Workshop on jump processes", Dresden, Germany (January 14-17, 2009)
          Talk: Potential theory of relativistic stable processes;
 •  "2nd International Conference on Stochastic Analysis and Its Applications", Seul, South Korea (May 28-31, 2008)
          Talk: Bessel potentials, hitting distributions and Green functions;
 •  "X Conference on Probability Theory", Będlewo, Poland (May 19-23, 2008)
          Talk: Potencjały Bessela, rozkłady trafienia i funkcje Greena;
 •  "IX Conference on Probability Theory" , Będlewo, Poland (May 22-26, 2006)
          Talk: Jądro Poissona i funkcja Greena kuli w rzeczywistych przestrzeniach hiperbolicznych;
 •  "Stochastic and Harmonic Analysis of Processes with Jumps", Angers, France (May 2-9, 2006)
          Talk: Poisson kernel and Green function of the ball in real hyperbolic spaces;
 •  "Warsaw Probability Meeting", Warsaw, Poland (December 15-16, 2005)
          Announcement: Green function of the half-space in real hyperbolic spaces;

RESEARCH PROJECT GRANTS:

 •  "Stochastic particle systems with repulsive forces"
          NCN grant, number: 2018/29/B/ST1/02030 (2019-2022) - leader;
 •  "Heat kernels for Bessel operator"
          NCN grant, number: 2016/20/T/ST1/00257 (2017-2018) - supervisor;
 •  "Levy processes with completely monotone jumps"
          NCN grant, number: 2015/19/B/ST1/01457 (2016-2019) - executor;
 •  "Bessel processes and non-colliding particle systems",
          NCN grant, number: 2013/11/D/ST1/02622 (2014-2017) - leader;
 •  "Spectral theory for Levy processes",
          NCN grant, number: 2011/03/D/ST1/00311 (2012-2015) - executor;
 •  "Processus Autosimilares",
          ANR project (France), number: ANR-09-BLAN-0084 (2010-2011) - executor;
 •  "Potential theory of some classes of Lévy processes and their Feynman-Kac semigroups",
          grant of Polish State Committee for Scientific Research, number: N N201 373136 (2009-2012) - executor;
 •  "Potential theory on hyperbolic spaces",
          PhD grant of Polish State Committee for Scientific Research, number: N201 4100 33 (2007-2008) - main executor;
 •  "Harmonic measures and properties of semigroups of stable processes",
          grant of Polish State Committee for Scientific Research, number: 1 P03A 020 28 (2005-2008) - executor;
 •  "Harmonic Analysis and Related Problems",
          grant of European Committee, number: HPRN-CT-2001-00273-HARP (2002-2006) - executor;
 •  "Potential theory of stable processes and their Feynman-Kac semigroup",
          grant of Polish State Committee for Scientific Research, number: 2 P03A 041 22 (2002 - 2005) - executor