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New frontiers in Singularity Theory

Grant number: 19/21181-0
Support type:Research Projects - Thematic Grants
Duration: March 01, 2020 - February 28, 2025
Field of knowledge:Physical Sciences and Mathematics - Mathematics - Geometry and Topology
Principal researcher:Regilene Delazari dos Santos Oliveira
Grantee:Regilene Delazari dos Santos Oliveira
Home Institution: Instituto de Ciências Matemáticas e de Computação (ICMC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Pesquisadores principais:
( Atuais )
Marcelo Jose Saia ; Maria Aparecida Soares Ruas ; Míriam Garcia Manoel ; Nivaldo de Góes Grulha Júnior ; Raimundo Nonato Araújo dos Santos
Pesquisadores principais:
( Anteriores )
Regilene Delazari dos Santos Oliveira
Assoc. researchers:Alex Carlucci Rezende ; Eliris Cristina Rizziolli ; Grazielle Feliciani Barbosa ; João Carlos Ferreira Costa ; Josnei Antonio Novacoski ; Michelle Ferreira Zanchetta Morgado ; Nguyen Thi Bich Thuy ; Roberta Godoi Wik Atique ; Thais Maria Dalbelo ; Victor Hugo Jorge Pérez
Associated grant(s):22/03720-3 - Characteristic Classes, Transversality and Stiefel-Whitney Currents, AV.EXT
Associated scholarship(s):22/01251-6 - Algebraic graph theory and the Kuramoto model, BP.IC
21/14703-0 - Introduction to the toric varieties, BP.IC
22/02210-1 - Introduction to the center problem and cyclicity problem in the class of the polinomial differential systems, BP.IC
+ associated scholarships 21/14987-8 - Bifurcation of limit cycles in smooth piecewise systems and an application in Medicine, BP.PD
21/14695-7 - Limit cycles, regularization and period function of piecewise smooth planar systems., BP.PD
21/09524-9 - Semigroups, toric actions and monomial surfaces, BP.IC
21/07192-9 - The topological degree and applications, BP.IC
21/07656-5 - Introduction to the study of differential equations: a dynamic approach, BP.IC
21/05770-5 - Physic's differential equations, BP.IC
21/02970-3 - Chow group, BP.IC
21/02598-7 - Qualitative theory of ordinary differential equations and applications, BP.IC
21/02951-9 - A study of vector fields indexes: from topology to the geometry, BP.IC
21/04961-1 - Differential equations: a dynamical approach for the Poincaré-Hopf Theorem, BP.IC
20/14442-9 - Topology of polynomial mappings and Thom polynomials, BP.DR
21/01817-7 - Differential forms and applications, BP.IC
21/00851-7 - A study of singularities on deep neural networks, BP.IC
20/16263-4 - Estudo de sistemas de equações diferenciais: bifurcações e aplicações, BP.IC
19/21230-0 - Synchrony in coupled systems: a connection between graphs and singularities, BP.DR
20/05978-2 - An introduction to differential geometry of curves and surfaces in Minkowski space, BP.IC
19/25235-7 - Obstruction theory, characteristic classes and applications, BP.MS - associated scholarships

Abstract

Singularity theory has wide applications to several areas of science such as optics, robotic and computer vision, and interacts with several areas of mathematics, among which we highlight the algebraic geometry and algebraic topology, commutative algebra, differential and affine geometry, the qualitative theory of ordinary differential equations, dynamical systems, and bifurcation theory. On the other hand, these areas enrich the singularity theory with interesting problems and relevant results. This project has as its central theme the development of methods of classification and recognition of the topology and geometry of real and complex singularities, as well as the determination of families that satisfy some equisingularity condition. The invariants of singularities are investigated in their most diverse forms, whether geometric, algebraic or topological. The research on the singularities of matrices and varieties as well as the bi-Lipschitz geometry and the classification of maps have pioneering results being obtained and allowing new lines of research in this area. We emphasize also the development of research on multiplicities of ideals and modules. Computational methods will be applied for the understanding of the invariants and the topology of singularities, and in the development of algorithms for the study of multiplicities and the local cohomology theory of modules. The project, with well defined objectives, aims at activities in the state of São Paulo and the interaction will promote the development in the following lines of research: Classification, equisingularity and invariants; geometry and topology; commutative algebra, algebraic geometry and singularities; applications to qualitative aspects in discrete and continuous dynamical systems. These lines of research are articulated to each other enabling the interaction of the various researchers involved in the project and the fulfillment of the proposed objectives. Among the researchers involved in the project we have researchers with extensive experience and whose collaboration between them has already produced key advances in the Theory of Singularities and their applications. We also have young researchers who demonstrate an excellent ability to contribute to the advancement of science in Singularities. Moreover, in this project we aim to strengthen the collaboration of the researchers of Sâo Paulo with researchers from other states such as, for example, Maranhão, Ceará, Paraíba, Piaui, Minas Gerais, Espírito Santo, Paraná, Rondônia, and also other countries such as Germany, Spain, the United States, France, Ir\~a, Japan, the United Kingdom and Portugal. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (12)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
OLIVEIRA, REGILENE D. S.; SANCHEZ-SANCHEZ, IVAN; TORREGROSA, JOAN. Simultaneous Bifurcation of Limit Cycles and Critical Periods. Qualitative Theory of Dynamical Systems, v. 21, n. 1 MAR 2022. Web of Science Citations: 0.
ITIKAWA, JACKSON; OLIVEIRA, REGILENE; TORREGROSA, JOAN. First-order perturbation for multi-parameter center families. Journal of Differential Equations, v. 309, p. 291-310, FEB 5 2022. Web of Science Citations: 0.
RIUL, PEDRO BENEDINI; SOARES RUAS, MARIA APARECIDA; SACRAMENTO, ANDREA DE JESUS. Singular 3-manifolds in R-5. REVISTA DE LA REAL ACADEMIA DE CIENCIAS EXACTAS FISICAS Y NATURALES SERIE A-MATEMATICAS, v. 116, n. 1 JAN 2022. Web of Science Citations: 0.
RIBEIRO, MAICO F.; ARAUJO DOS SANTOS, RAIMUNDO NONATO. Geometrical Conditions for the Existence of a Milnor Vector Field. BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY, v. 52, n. 4, p. 771-789, DEC 2021. Web of Science Citations: 1.
LLIBRE, JAUME; OLIVEIRA, REGILENE. On the limit cycle of a Belousov-Zhabotinsky differential systems. MATHEMATICAL METHODS IN THE APPLIED SCIENCES, v. 45, n. 2 SEP 2021. Web of Science Citations: 0.
LLIBRE, JAUME; OLIVEIRA, REGILENE D. S.; RODRIGUES, CAMILA A. B. QUADRATIC SYSTEMS WITH AN INVARIANT ALGEBRAIC CURVE OF DEGREE 3 AND A DARBOUX INVARIANT. Electronic Journal of Differential Equations, AUG 16 2021. Web of Science Citations: 0.
MEZA-SARMIENTO, INGRID S.; OLIVEIRA, REGILENE; SILVA, PAULO R. DA. Quadratic slow-fast systems on the plane. NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS, v. 60, AUG 2021. Web of Science Citations: 1.
ARTES, JOAN C.; MOTA, MARCOS C.; REZENDE, ALEX C. Quadratic Differential Systems with a Finite Saddle-Node and an Infinite Saddle-Node (1,1) SN - (B). INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, v. 31, n. 09 JUL 2021. Web of Science Citations: 0.
ARTES, JOAN C.; MOTA, MARCOS C.; REZENDE, ALEX C. Structurally unstable quadratic vector fields of codimension two: families possessing a finite saddle-node and an infinite saddle-node. Electronic Journal of Qualitative Theory of Differential Equations, n. 35, p. 1-89, 2021. Web of Science Citations: 0.
OLIVEIRA, REGILENE; SCHLOMIUK, DANA; TRAVAGLINI, ANA MARIA; VALLS, CLAUDIA. Geometry, integrability and bifurcation diagrams of a family of quadratic differential systems as application of the Darboux theory of integrability. Electronic Journal of Qualitative Theory of Differential Equations, n. 45, p. 1-90, 2021. Web of Science Citations: 0.
OLIVEIRA, REGILENE; SCHLOMIUK, DANA; TRAVAGLINI, ANA MARIA. Geometry and integrability of quadratic systems with invariant hyperbolas. Electronic Journal of Qualitative Theory of Differential Equations, n. 6 2021. Web of Science Citations: 0.
OLIVEIRA, REGILENE; VALLS, CLAUDIA. GLOBAL DYNAMICS OF THE MAY-LEONARD SYSTEM WITH A DARBOUX INVARIANT. Electronic Journal of Differential Equations, JUN 3 2020. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.