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Grant: Discovery Grants Program - Individual

Université d'Ottawa

$18,000.00

Automorphic differential equations and applications

EF 2023-24

Résumé
My research program is in the area of number theory. This theory is linked to all mathematics, from the purest abstraction to fundamental applications in codes and cryptography. From the theoretical point of view, the last decades have seen spectacular advances around the work of Wiles which led to the solution of Fermat's theorem, as well as advances in analytic number theory. There are also applications in theoretical physics and in cryptographic schemes against quantum computers. Number theory is also a powerful tool in developing computing methods. In this proposal I study a kind of differential equations that are closely related to automorphic forms and are called automorphic differential equations. In nature, they are types of Schrodinger equations with an automorphic potential in the same way that the Lamé equations are Schrodinger equations with an elliptic potential. The automorphic potential is in fact an automorphic form of weight four. Since the space of these forms for the modular group is one-dimensional, our equations depend on a complex parameter. For each class of these parameters, the solutions are completely different in the sense that they possess different kinds of symmetry. However, they all share one common property: They are all equivariant with respect to a representation of the modular group. Thus the classification of these representations yields various types of solutions to the automorphic differential equations. Various tools from complex analysis, algebraic geometry and representation theory are used. This has many applications, the most relevant of which to this proposal is about making progress toward solving a conjecture that states that the zeros of the weight two Eisenstein series are transcendental numbers. This is an important conjecture which turns out to be a particular case of two famous conjectures by Grothendieck/André and by Nesterenko/Bertrand. This research program will also provide high-quality training to HQP allowing them to develop the skills that will make them competitive candidates for academic and non-academic jobs.
Programme
Discovery Grants Program - Individual
Bénéficiaire
Emplacement
Ontario, Canada
Type de bénéficiaire
Academia
Type
Grant
Source
NSERC's Awards Data

Tel que publié

Application id
RGPIN-2021-04316
Name nom
Sebbar, Abdellah
Department département
Mathematics and Statistics - Mathématiques et statistiques
Organization id
28
Institution établissement
Université d'Ottawa
Province en
Ontario
Province fr
Ontario
Country en
CANADA
Country fr
CANADA
Fiscal year exercice financier
2023
Competition year année de concours
2021
Award amount
18000
Program id
RGPIN
Program name en
Discovery Grants Program - Individual
Program name fr
Programme de subventions à la découverte - individuelles
Group en
DISCOVERY RESEARCH
Group fr
RECHERCHE AXÉE SUR LA DÉCOUVERTE
Committee code
1508
Committee name en
Mathematics and Statistics
Committee name fr
Mathématiques et statistique
Area of application code
1205
Area of application group en
Advancement of knowledge
Area of application group fr
Avancement des connaissances
Area of application en
Mathematical sciences
Area of application fr
Sciences mathématiques
Research subject code
9999
Research subject group en
Not available
Research subject group fr
Not available
Research subject en
Non disponible
Research subject fr
Non disponible
Application title
Automorphic differential equations and applications
Keyword
Algebraic independence; Automorphic differential equations; Eisenstein series; Equivariant functions; Modular forms; Schwarz derivative; Transcendental numbers
Application summary
My research program is in the area of number theory. This theory is linked to all mathematics, from the purest abstraction to fundamental applications in codes and cryptography. From the theoretical point of view, the last decades have seen spectacular advances around the work of Wiles which led to the solution of Fermat's theorem, as well as advances in analytic number theory. There are also applications in theoretical physics and in cryptographic schemes against quantum computers. Number theory is also a powerful tool in developing computing methods. In this proposal I study a kind of differential equations that are closely related to automorphic forms and are called automorphic differential equations. In nature, they are types of Schrodinger equations with an automorphic potential in the same way that the Lamé equations are Schrodinger equations with an elliptic potential. The automorphic potential is in fact an automorphic form of weight four. Since the space of these forms for the modular group is one-dimensional, our equations depend on a complex parameter. For each class of these parameters, the solutions are completely different in the sense that they possess different kinds of symmetry. However, they all share one common property: They are all equivariant with respect to a representation of the modular group. Thus the classification of these representations yields various types of solutions to the automorphic differential equations. Various tools from complex analysis, algebraic geometry and representation theory are used. This has many applications, the most relevant of which to this proposal is about making progress toward solving a conjecture that states that the zeros of the weight two Eisenstein series are transcendental numbers. This is an important conjecture which turns out to be a particular case of two famous conjectures by Grothendieck/André and by Nesterenko/Bertrand. This research program will also provide high-quality training to HQP allowing them to develop the skills that will make them competitive candidates for academic and non-academic jobs.