Top-level heading

Random varieties

We shall go through recent results on Diophantine equations with random coefficients. At the end i will talk about upcoming work with Christopher Frei in which we prove that admissible conic bundles h...

Congettura del cono di Morrison-Kawamata

Proseguiremo la discussione della congettura del cono per le varietà di Calabi–Yau in dimensione superiore. Questa scuola è parte dei progetti del Dipartimento di Eccellenza CUP B83C23001390001 ed è ...

Towards a Jacquet-Langlands correspondence for function field modular forms

The Jacquet-Langlands correspondence relates modular forms for GL2 and for its inner forms, i.e. for unit groups of quaternion algebras, and was historically the first known example of Langlands trans...

Localization and delocalization in random graphs

A disordered quantum system is mathematically described by a large Hermitian random matrix. One of the most remarkable phenomena expected to occur in such systems is a localization-delocalization tran...

Lp spectral triples, Isometries, and twisted Lp crossed products

I will introduce Lp spectral triples and give an overview of their properties. I will also discuss spectral triple isometries. On a different note, I will introduce twisted crossed products of Lp and ...

In quanti modi si può scrivere 10011101 come somma di quattro quadrati?

Il 25 dicembre del 1640, tra un biglietto di auguri e l’altro, Marin Mersenne se ne vede recapitare uno che recita: “Un primo p si può scrivere come somma di due quadrati se e solo se p è congruo a 1 ...

Quasi-classical Limit of a Spin Coupled to a Reservoir

We consider a spin in contact with a bosonic reservoir, whose state contains a parameter interpolating between quantum and classical reservoir features. For energy conserving interactions we study dec...

Largest compact subvarieties of the moduli space of complex polarized Abelian varieties

The moduli space $A_g$ of complex principally polarized Abelian varieties of dimension $g$ is an irreducible quasi-projective variety, which, for $g>1$, is neither affine nor projective. One can me...

From the “locally obvious” via critique to the practice and then the ideology of axiomatics: Rethinking the road toward Greek theoretical geometry

On the faith of Proclos, older general histories of mathematics (and many rather recent) tell us that Greek theoretical geometry was created by Thales and/or Pythagoras. Comparison with what Proclos's...

Sottovarietà di intersezioni complete di grado alto

È ben noto grazie a un lavoro di Ein del 1988 che le intersezioni complete molto generali di multigrado $(d_1,\dots, d_c)$ nello spazio proiettivo di dimensione $n$ non contengono curve razionali non ...
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