Tianze Wang

activity

20162026

collaborators

6 papers

cs.IR2026

Data Curation and Model Souping: Unlocking Qwen3-0.6B for MS MARCO Passage Ranking

Shuguang Han

This report studies passage retrieval and re-ranking on the MS MARCO benchmark using lightweight Qwen3-0.6B models. Across three experimental settings --- BM25-then-reranking task,…

math.OA2026

Operators with disconnected spectrum in von Neumann algebras

Minghui Ma, Rui Shi, Tianze Wang

Let $M$ be a von Neumann algebra, $I$ a weak-operator dense ideal in $M$ , and $Φ$ a unitarily invariant $∥ \cdot ∥$ -dominating norm on $I$ .…

math.OA2025

Products of irreducible operators in factors

Minghui Ma, Junhao Shen, Rui Shi +1

Let $M$ be a separable factor. An operator $T$ in $M$ is said to be irreducible in $M$ if the von Neumann algebra $W^{*} (T)$ generated by $T$ is an irred…

math.OA2025

Density of irreducible operators in the trace-class norm

Junsheng Fang, Chunlan Jiang, Minghui Ma +3

In 1968, Paul Halmos initiated the research on density of the set of irreducible operators on a separable Hilbert space. Through the research, a long-standing unsolved problem inqu…

math.NT2021

The number of solutions of diagonal cubic equations over finite fields

Wenxu Ge, Weiping Li, Tianze Wang

Let $F_{q}$ be a finite field of $q = p^{k}$ elements. For any $z \in F_{q}$ , let $A_{n} (z)$ and $B_{n} (z)$ denote the number of solutions of the equations $x_1^3+x_2^3+\cdots…

math.SG2016

The symplectic geometry of a new kind of Siegel upper half space of order 2 (I)

Tianqin Wang, Tianze Wang, Hongwen Lu

In this paper, we introduce a new kind of Siegel upper half space and consider the symplectic geometry on it explicitly under the action of the group of all holomorphic transformat…