# Workshop on Algebraic and Analytic Singularities (WAAS), September 18-22.09.2023

The Center for Advanced Studies invites you to the:

**Workshop on Algebraic and Analytic Singularities (WAAS)**

which will be held on September 18-22, 2023 at the Faculty of Mathematics and Information Science of Warsaw University of Technology (77 Koszykowa Street, Warsaw).

The workshop will include three Master Course series.

The workshop will consist of regular lectures given by participants, along with several mini-lectures for PhD students and undergraduates on singularity theory, including:

- Federico SÃ¡nchez-Bringas,
*"Lines of curvature and asymptotic lines of surfaces"*(abstract: PDF). - Kentaro Saji,
*"Geometry of singular surfaces and curves"*(abstract: PDF) - MichaÅ‚ ZwierzyÅ„ski,
*"Exploring Affine Invariants and Equivariants: Wigner Caustic, Centre Symmetry Set, and Beyond"*(abstract: PDF)

The workshop program will include a number of scientific lectures, on a variety of topics related to the theory of singularities :

- Jiro Adachi,
*"On global existence of some geometric structures"* - Wojciech Domitrz,
*"Generic singularities of 2-dimensional improper affine spheres"* - Toshizumi Fukui,
*"Singularities of mixed polynomials using Newton polyhedra"* - Goo Ishikawa,
*"Singularities of parametric Lagrangian varieties â€” Joint works with StanisÅ‚aw Janeczko"* - Miyuki Koiso,
*"Intrinsic singular points and curvatures of piecewise-smooth surfaces"* - RÃ©mi Langevin,
*"Newton-lens polyhedra and 3-dimensional complex algebraic singularities"* - Piotr Mormul,
*"The local geometry of special multi-flags [to be] unveiled through infinitesimal symmetries' computations"* - Naomichi Nakajima,
*"Legendre singularities and information geometry"* - Takashi Nishimura,
*"On envelopes created by straight line families in the plane"* - Ryosuke Ota,
*"Concordance of Morse functions on manifolds"* - Tomasz PeÅ‚ka,
*"Del Pezzo surfaces of rank one"* - Graham Reeve,
*"Bitangent planes and applications to thermodynamics"* - Osamu Saeki,
*"Special generic maps and Gromoll filtration"* - Kentaro Saji,
*"Geometry of D4 singularities of fronts*" - Ewa StrÃ³Å¼yna
*, TBA* - Masatomo Takahashi,
*"On vertices of frontals in the Euclidean plane"* - Masato Tanabe,
*"Canonical stratification of definable Lie groupoids"* - Hiroshi Teramoto,
*"Algorithms for classification of real singularities"* - Yosef Yomdin,
*"Curves and Chain rule in study of Whitney smooth extensions"* - Michail Zhitomirskii,
*"Singularities and/or Symmetries?"* - Marcin Zubilewicz,
*"On certain bi-Lagrangian structures in the space of rays"*

The workshop will be held at the Faculty of Mathematics and Information Science of Warsaw University of Technology (77 Koszykowa Street, Warsaw).

**The detailed programme of the workshop is available under the following link: (****PDF****).**

**more information at the website.**

**Scientific Committee**

- Wojciech Domitrz (Warsaw University of Technology)
- Christophe Eyral (Warsaw, IMPAN)
- Toshizumi Fukui (Saitama University)
- Goo Ishikawa (Hokkaido University)
- BronisÅ‚aw Jakubczyk (Warsaw, IMPAN)
- Stanislaw Janeczko (Warsaw University of Technology)
- Marek Kossowski (South Carolina USA)
- Takashi Nishimura (Yokohama National University)
- Juan JosÃ© NuÃ±o-Ballesteros (University of Valencia)
- Maria Aparecida Soares Ruas (SÃ£o Carlos, SÃ£o Paulo State University)
- Osamu Saeki (Kyushu University)
- Kentaro Saji (Kobe University)
- Federico SÃ¡nchez-Bringas (Universidad Nacional AutÃ³noma de MÃ©xico)
- Farid Tari (SÃ£o Carlos, SÃ£o Paulo State University)
- Michail Zhitomirskii (Haifa Technion)

**Organizing Committee**

- Wojciech Domitrz (Warsaw)
- Goo Ishikawa (Hokkaido)
- Osamu Saeki (Kyushu)
- Marcin Zubilewicz (Warsaw)
- MichaÅ‚ ZwierzyÅ„ski (Warsaw)

**Organizing Institutions**

- Center for Advanced Studies, Warsaw University of Technology
- Institute of Mathematics for Industry, Kyushu University
- Department of Mathematics, Hokkaido University
- Faculty of Mathematics and Information Science, Warsaw University of Technology