On 2-rank of the ideal class groups of algebraic number fields.
On 3-class groups of non-Galois cubic fields
On a certain subideal of the Stickelberger ideal of a cyclotomic field
On a congruence relation between Jacobi sums and cyclotomic units.
On a Conjecture of Gross on Special Values of L-functions.
On a generalization of Tate dualities with application to Iwasawa theory
On a hypothesis implying the non-vanishing of Dirichlet's L-series L(s, x) for s ... 0 and real odd characters x.
On a noncommutative Iwasawa main conjecture for varieties over finite fields
We formulate and prove an analogue of the noncommutative Iwasawa main conjecture for -adic Lie extensions of a separated scheme of finite type over a finite field of characteristic prime to .
On a Theorem of M. Deuring and I.R. Safarevic.
On a trivial zero problem.
On Certain Dirichlet Series Whose Coefficients Are Related to Class Numbers.
On certain infinite families of imaginary quadratic fields whose Iwasawa λ-invariant is equal to 1
Let p be an odd prime number. We prove the existence of certain infinite families of imaginary quadratic fields in which p splits and for which the Iwasawa λ-invariant of the cyclotomic ℤₚ-extension is equal to 1.
On class numbers of some cyclotomic fields.
On classical weight one forms in Hida families
We give precise estimates for the number of classical weight one specializations of a non-CM family of ordinary cuspidal eigenforms. We also provide examples to show how uniqueness fails with respect to membership of weight one forms in families.
On CM-fields with the same maximal real subfield
On cyclotomic ℤ ₚ-extensions of real quadratic fields
On determining the quadratic subfields of -extensions of complex quadratic fields
On discriminants and indices of integers of an algebraic number field.
On elliptic units and class number of a certain dihedral extension of degree 2l
On first layers of ℤₚ-extensions II