activity
20242026
collaborators

7 papers

math.AG2026

The zariskian p-adic bifiltered El Zein-Steenbrink-Zucker complex of a proper SNCL scheme with a relative SNCD

Yukiyoshi Nakkajima

We formulate the log -adic relative monodromy-weight conjecture and prove it in certain cases.

math.AG2026

The -adic bifiltered El Zein-Steenbrink-Zucker complex of a proper SNCL scheme with a relative SNCD

Yukiyoshi Nakkajima

For a family of log points with constant log structure and for a proper SNCL scheme with an SNCD over the family, we construct a fundamental l-adic bifiltered complex as a geometri…

math.AG2025

Theory of weights for log convergent cohomologies I: the case of a proper smooth scheme with an SNCD in characteristic p>0

Yukiyoshi Nakkajima, Atsushi Shiho

Using log convergent topoi, %In the derived category of filtered complexes of %sheaves of modules over %an isostructure we define two fundamental filtered complexes

math.KT2025

Derived categories of bifiltered complexes

Yukiyoshi Nakkajima

We construct a fundamental theory of the derived category of non-finite bi-filtered complexes.

math.AG2025

An ideal proof for Fujisawa's result and its generalization

Yukiyoshi Nakkajima

We give a generalization of Fujisawa's theorem in [F]. Our proof of the generalized theorem is purely algebraic and it is simpler than his proof.

math.AG2025

Hirsch weight-filtered log crystalline complex and Hirsch weight-filtered log crystalline dga of a proper SNCL scheme in characteristic p>0

Yukiyoshi Nakkajima

We construct a theory of the derived PD-Hirsch extension of the log crystalline complex of a log smooth scheme and we construct a fundamental filtered dga $(H_{{\rm zar},{\rm TW}},…