Janusz Mierczyński

polska[Strona w języku polskim (informacje dla studentów)]


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Janusz Mierczyński

Janusz Mierczy\'nski

Department of Pure Mathematics

Department of Pure Mathematics

Faculty of Pure and Applied Mathematics

Faculty of Pure and Applied Mathematics

Wrocław University of Science and Technology

Wroc{\l}aw University of Science and Technology

Wybrzeże Wyspiańskiego 27

Wybrze\.ze Wyspia\'nskiego 27

PL-50-370 Wrocław

PL-50-370 Wroc{\l}aw

Poland

Poland

phone: +48 713202108

 

 

fax: +48 713280751

 

e-mail: mierczyn at pwr.edu.pl

 

URL: http://prac.im.pwr.edu.pl/~mierczyn/

 

 

 

 

 


Pronunciation (IPA 2015)


Identifiers


Degrees


Research interests

Google Scholar

Publons


Internationally funded research projects

o   U.S.-Polish Cooperative Research: Lyapunov Exponents and Spectrum for Random and Nonautonomous Parabolic Equations (2004 – 2007) – Principal Investigator


Community service

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IOP Publishing Trusted Reviewer Certificate


Conferences

 

Past:

o   Celebrating the mathematics of Michel Benaďm, The Bernoulli Center for Fundamental Studies, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland, August 21 – 24, 2023. (link to some pictures) (link to the slides, with some  misprints corrected)

o    Nonautonomous Dynamics and Applications, workshop, Department of Applied Mathematics, Universidad de Valladolid, Valladolid, Spain, November 25 – 27, 2015.

o    VII Symposium on Nonlinear Analysis, Toruń, Poland, September 14 – 18, 2015.


Links to mathematicians I have had the hono(u)r to collaborate with

 


Ph. D. students

Past:

Present:


Book

(joint with Wenxian Shen) Spectral Theory for Random and Nonautonomous Parabolic Equations and Applications, Chapman & Hall/CRC Monographs and Surveys in Pure and Applied Mathematics, 139, Chapman & Hall/CRC, Boca Raton, FL, 328 pages, ISBN: 9781584888956, ISBN-10: 1584888954, published March 24, 2008.

Abstract:

The goal of the monograph is to give a clear and essentially self-contained account of the spectral theory, in particular, the theory of principal spectrum and principal Lyapunov exponents for general time dependent and random linear parabolic equations of second order on bounded domain, as well as systems of such equations.  Also, applications to uniform persistence in nonlinear Kolmogorov systems are given.

 

The monograph gives a unified approach to the theory of principal spectrum:  It starts from the abstract general theory, in the framework of weak solutions, and then specializes to the cases of random and nonautonomous equations.   Fundamental properties of the principal spectrum/principal Lyapunov exponents are investigated.  The book contains many new results, as well as it puts already known results in a new perspective.

 

The intended readership of the monograph are research mathematicians and Ph. D. students in mathematics, in particular (but not limited to) those specializing in applications of mathematics to ecology.

Table of contents:

Ordering:

CRCnetBase book page

 

Reviews:

 

“The monograph gives a clear and interesting account of the principal spectral theory for general time-dependent and random linear parabolic equations and systems. It contains many new results and puts some already known results in a new framework. …”

 

Krystyna Twardowska, Mathematical Reviews, Issue 2010g (link to the review)


Sample papers

[List of all publications]

(if your institution is not a subscriber to the MR or a journal, e-mail me: mierczyn at pwr.edu.pl)

Preprints:

o   (joint with Marek Kryspin) Systems of parabolic equations with delays: Continuous dependence on parameters. (link to the preprint at arXiv)

o   (joint with Marek Kryspin, Sylvia Novo and Rafael Obaya) Two dynamical approaches to the notion of exponential separation for random systems of delay differential equations. (link to the preprint at arXiv)

Non-refereed notes:

o   Flows on ordered bundles, 1995. (.pdf version)

Refereed papers:

o   (joint with Stephen Baigent) Existence of the carrying simplex for a retrotone map, J. Difference Equ. Appl. 30(3) (2023), pp. 287–319. (link to the journal) (for an earlier version, Existence of the carrying simplex for a C1 retrotone map, see arXiv)

o   (joint with Marek Kryspin) Parabolic differential equations with bounded delay, J. Evol. Equ. 23:2 (2023). (link to the preprint at arXiv) (link to the journal)

o   The C1 property of convex carrying simplices for competitive maps, Ergodic Theory Dynam. Systems, 40(5) (2020), pp. 1335-1350. (accepted version) (final version, requires access to CUP) (final version, read-only)

o   (joint with Sylvia Novo and Rafael Obaya) Lyapunov exponents and Oseledets decomposition in random dynamical systems generated by systems of delay differential equations, Commun. Pure Appl. Anal. 19(4), April 2020, special issue in honour of Prof. Tomás Caraballo on occasion of his 60th birthday, pp. 2235-2255. (link to the journal) (link to the preprint at arXiv)

o   (joint with Lei Niu and Alfonso Ruiz-Herrera) Linearization and invariant manifolds on the carrying simplex for competitive maps, J. Differential Equations, 267(12) (2019), pp. 7385-7410. (accepted version) (link to the journal, may require institutional access or payment)

o   (joint with Sylvia Novo and Rafael Obaya) Principal Floquet subspaces and exponential separations of type II with applications to random delay differential equations, Discrete Contin. Dyn. Syst. 38(12), December 2018, Special issue on Llavefest (in honor of Rafael de la Llave), pp. 6163-6193.  (link to the journal) (link to the preprint at arXiv) MR3917806 (link to the review)

o   The C1 property of convex carrying simplices for three-dimensional competitive maps, J. Difference Equ. Appl. 24(8) (2018), pp. 1199-1209. (accepted version) (link to the journal) (link to the preprint at arXiv)

o   Instability in linear cooperative systems of ordinary differential equations, SIAM Rev. 59(3) (2017), pp. 649-670. (publisher’s version, without supplements or interactive material) (link to the journal) MR 3683685 (link to the review)

o   (joint with Wenxian Shen) Formulas for generalized principal Lyapunov exponent for parabolic PDEs, Discrete Contin. Dyn. Syst. Ser. S 9 (4) (2016), pp. 1189-1199. (link to the journal) (link to the preprint at arXiv) MR 3543652

o    (joint with Wenxian Shen) Principal Lyapunov exponents and principal Floquet spaces of positive random dynamical systems. III. Parabolic equations and delay systems, J. Dynam. Differential Equations 28(3-4) (2016), pp. 1039-1079. (link to the journal) (publisher's version) MR 3537364 (link to the review)

o   Averaging in random systems of nonnegative matrices, Discrete Contin. Dyn. Syst. (2015), Dynamical systems, differential equations and applications, 10th AIMS Conference, Suppl., pp. 835-840. (link to the journal) (link to the preprint at arXiv) MR 3462519

o   Lower estimates of top Lyapunov exponent for cooperative random systems of linear ODEs, Proc. Amer. Math. Soc. 143(3) (2015), pp. 1127-1135. (link to the journal) (link to the preprint at arXiv) MR 3293728 (link to the review)

o   Estimates for principal Lyapunov exponents: A survey, Nonauton. Dyn. Syst. 1 (2014), pp. 137-162. (link to the journal) (link to the preprint at arXiv)  MR 3378314 (link to the review)

o   (joint with Wenxian Shen) Principal Lyapunov exponents and principal Floquet spaces of positive random dynamical systems. II. Finite-dimensional systems, J. Math. Anal. Appl. 404(2) (2013), pp. 438-458. (link to the journal) (link to the preprint at arXiv)  MR 3045185

 

[List of all papers]


Citations

o    Google Scholar


Trivia

 

My Erdős number is bounded above by four:

 

Pál ErdősVilmos Komornik – Alain Haraux  – Peter Poláčik  – J. M.,

or

Pál Erdős – Richard R. Hall – Hal L. Smith – Xiaoqiang Zhao – J. M.,

or else

Pál Erdős – LeRoy B. Beasley – Chi-Kwong Li – Sebastian J. Schreiber – J. M.

 

 

According to the Mathematics Genealogy Project,  I have among my academic ancestors:

o   mathematicians: Jean Le Rond d’Alembert, Johann Bernoulli, Jakob Bernoulli, Michel Chasles, Pafnutii Chebyshev, Gaston Darboux, Gustav Peter Lejeune Dirichlet, Leonhard Euler, Jean-Baptiste Joseph Fourier, Carl Friedrich Gauss, Felix Klein, Ernst Kummer, Joseph Louis Lagrange, Pierre Simon de Laplace, Gottfried Wilhelm Leibniz, Ferdinand Lindemann, Rudolph Lipschitz, Nikolai Lobachevskii, Andrei Markov, Stefan Mazurkiewicz, Marin Mersenne, Johann Friedrich Pfaff, Émile Picard, Julius Plücker, Simeon Denis Poisson, Wacław Sierpiński, Stanisław Zaremba

o   physicists: Giovanni Battista Beccaria (not the lawyer Cesare Beccaria!), Hermann von Helmholtz, Heinrich Hertz, Christiaan Huygens, Wojciech Rubinowicz, Arnold Sommerfeld

o   astronomers: Tycho Brahe, Johannes Kepler, Mikołaj Kopernik (Nicolaus Copernicus), Johannes Müller von Königsberg (Regiomontanus), Jemme Reinerszoon (Gemma Frisius), Georg Joachim Rheticus, Willebrord Snel van Royen (Snellius), Nasir al-Din al-Tusi

o   physicians/anatomists: Franz de la Boë (Franciscus Sylvius), Herman Boerhaave, Jacques Dubois (Jacobus Sylvius), Girolamo Fabrizio (Hieronymus Fabricius), Gabriele Falloppio, Andreas Vesalius

o   philosophers: Marsilio Ficino, Georgios Gemistos (Plethon), Nicolas Malebranche, Angelo Poliziano, Pietro Pomponazzi

o   classical scholar: Johann Reuchlin

o   scholars of wide interests: Basilios Bessarion, Guillaume Budé, Desiderius Erasmus of Rotterdam, Ján Jesenský (Jan Jesenius), Nicole Oresme

o   “educators”: Pierre de La Ramée (Petrus Ramus), Philipp Schwarzerdt (Philipp Melanchthon), Johannes Sturm

o   lawyer: Jean Calvin (the same person, but not as a theologian!)

o   theologians:

o   Catholic: Geert Groote, Thomas ŕ Kempis

o   Orthodox: Saint Gregory Palamas

o   Protestant: Thomas Cranmer, Jakob Hermanszoon (Jacobus Arminius)

 


 

Last modified March 24, 2024