Home Page of Piotr Pragacz

a picture

Institute of Mathematics,  Polish Academy of Sciences
(in Polish: Instytut Matematyczny Polskiej Akademii Nauk) ( =  IM PAN)

postal address: ul. Śniadeckich 8, 00-656 Warszawa, Poland

+48 22 5228 236
      fax: +48 22 6293997

For electronic address remowe all 'w' from:
P(dotw) Prawgacz (wat) wimpan (pewriod) pwl


   Conference IMPANGA 20
    postponed to July 11-17, 2021

       Here you can find my

    short CV

    list of publications

articles to download


list of lectures


I am interested in formulas (mainly algebraic)
that give us interesting insights to geometry.

For the moment, I am interested in comparison of the Łojasiewicz
exponent and the order of tangency (see [74,75] on my list of publications).

My professional activity, since 2000, is related to IMPANGA
 - please click 
on the logo:

IMPANGA (Algebraic
                  Geometry at IM PAN)


I am an editor of

Fundamenta Mathematicae

Serdica Mathematical Journal

IM PAN-Birkhauser's series "Monografie Matematyczne"

Here you can download the articles from:


Here you can find an errata to:


Some of my recent or planned trips:

In 2019:

October 1-12:  RIMS, Kyoto University 
October 11: Algebraic Geometry Seminar: a talk on flag bundles, Segre polynomials, and

October 9-10: Okayama University of Science: a talk on the order of contact.

November 10-23: Sapienza University of Rome: Algebra and Geometry Seminar,
a minicourse "Gysin formulas for homogeneous spaces" including new formulas for
Schubert classes, and a talk on the order of tangency.

In 2020:

March 05: A discussion with Tadeusz Mostowski at MIM UW on the Lojasiewicz exponent.

June 25: An online talk at the University of Lodz:"Tangency and regular separation:
Lojasiewicz exponent and hyperplane sections".


is an algebraic geometry seminar, created at IM PAN in 2000.
Since 2020, I am Honorary Chairman of Impanga.


Accademia Peloritana dei Pelicoranti in Messina, created in 1729,
is one of the most remarkable Academies of the world.  Its
Corresponding Member was, e.g., S.-S. Chern - my mathematical
hero, and many others.
Since 2016, I am Corresponding Member of
Accademia Peloritana dei Pelicoranti


At the end of the mathematical part of this homepage you can find "Humor in mathematics"
"Humor w matematyce" Konspekt Nr 1/2007 (28), 106-116 (in Polish)
(In the reference [Z], the last part of the webpage changed to: \quotes.html )

                                     * * * * *

The remaining part of my homepage is more private,
and is related mainly to art and nature:

~100 things which impressed me most (in Polish)

"Zaszafie" (in Polish)

Engravings and water-colours by Maria Ksyk (in Polish)

Warsaw Philharmonic

Japanese Garden


Lao Tsy "Droga":

Prawdziwą służbą Mędrca
Jest pracować w milczeniu,
Bo nie racje, lecz spełnienia
Są nauką tego, który
Wszystkim jednakowo służy.

Każdemu użycza, nie odrzucając nikogo,
Ożywia tysiące rzeczy, nie próbując ich posiadać,
A co pozostawia przechodząc,
Niczym go nie wiąże.

Chociaż wiele ma zasług,
nie przyjmuje wyróżnień.
Dlatego zawsze jest wyróżniony.


Ester Ledecka   (Pyeongchang 2018)


Here is a couple of pictures:

With Alain Lascoux - my teacher (Nankai University, October 1999)

Kyoto (March 2011)

In Taizo-in

With Shigefumi Mori

With my daughter in Murin-an

With Shigeru Mukai


On "Philosophers Path" (December 2008)

After my talk at RIMS with (from left) Matsuki, Mori and Mukai (April 2016)

With Friedrich Hirzebruch and Adam Parusiński (May 1998)

With Lagrange in Torino (October 2004) - picture by Letterio Gatto

With Ramanujan in Kumbakonam (March 2009)

In the house of Ramanujan in Kumbakonam (March 2009)

With Mariko and Mutsuo Oka (rainy June 2014)
        with Mariko      and also
A Tea house (October 2014)

With Shigeru Mukai (June 2016)

After my talk in Edinburgh with Michael Atiyah (November 2016)

Accademia Peloritana Messina (May 2017)      after a lecture   

About the front page: the picture there shows some detail of my garden. I share the opinion
of Hermann Fuerst von Pueckler-Muskau (1785-1871), who once said:
''Wer mich ganz kennenlernen will, muss meinen Garten kennen, denn  mein Garten is mein  Herz."        

My Japanese Garden suddenly became covered by moss (10.02.2020).

"Dear Piotr, Congratulations! Thanks for sharing your miracle with me.
I am so glad to learn your success. All the best, Shigefumi."