# Homepage of Maciek Zdanowicz

### Contact information

Institute of Mathematics, University of Warsaw
02-097 Warszawa, Poland
phone: (+48) 503-178-657
e-mail: 'mez' at mimuw.edu.pl

I got my PhD in algebraic geometry from University of Warsaw on June 2017 under supervision of Prof. Adrian Langer and Dr Piotr Achinger. Starting in September, I'll work as a research scientist in the Chair of Algebraic Geometry of École Polytechnique Fédérale de Lausanne led by Prof. Zsolt Patakfalvi.
My CV can be found here .

### Research interests

My research interests include:
• algebraic geometry in characteristic $p$,
• different types of singularities defined via Frobenius,
• commutative algebra,
• cryptography, especially leakage-resilience.

### My papers and preprints

#### Algebraic geometry

1. Liftability of singularities and their Frobenius morphism mod $p^2$
in International Mathematics Research Notices, https://doi.org/10.1093/imrn/rnw297.
2. Some elementary examples of non-liftable varieties (with Piotr Achinger),
in Proceedings of the American Mathematical Society, https://doi.org/10.1090/proc/13622.
3. Liftability of the Frobenius morphism and images of toric varieties (with Piotr Achinger and Jakub Witaszek), submitted.

#### PhD thesis

On liftability of schemes and their Frobenius morphism (supervised by Prof. Adrian Langer, cosupervised by Dr Piotr Achinger)

#### Cryptography

1. Position-Based Cryptography from the Noisy Channels (with Stefan Dziembowski),
in Progress in Cryptology - Africacrypt 2014, pp 300-317, https://doi.org/10.1007/978-3-319-06734-6_19
2. Bounded-Retrieval Model with Keys Derived from Private Data (with Konrad Durnoga, Stefan Dziembowski, Tomasz Kazana, Michał Zając),
in Inscrypt 2016 - Information Security and Cryptology, pp 273-290, https://doi.org/10.1007/978-3-319-54705-3_17
3. Chain rule for min-entropy (with Stefan Dziembowski, Tomasz Kazana), submitted.

### My favorite books

1. Waclaw Sierpinski - 250 problems in elementary number theory