Pham Hoang Ha

activity

20142023

most citedModified defect relations of the Gauss map of complete minimal surfaces on annular ends

1 citations · 1 across the 3 of their papers we have counts for

collaborators

3 papers

math.CO2023

Spanning trees of $K_{1, 4}$ -free graphs whose reducible stems have few leaves

Pham Hoang Ha, Le Dinh Nam, Ngoc Diep Pham

Let $T$ be a tree, a vertex of degree one is a \emph{leaf} of $T$ and a vertex of degree at least three is a \emph{branch vertex} of $T$ . The {\it reducible stem } of $T$ is the sm…

math.CO2022

Spanning trees with at most $5$ leaves and branch vertices in total of $K_{1, 5}$ -free graphs

Pham Hoang Ha, Nguyen Hoang Trang

In this paper, we prove that every $n$ -vertex connected $K_{1, 5}$ -free graph $G$ with $σ_{4} (G) \geq n - 1$ contains a spanning tree with at most $5$ leaves and branch vertices in total…

math.DG2014★ 1 cited

Modified defect relations of the Gauss map of complete minimal surfaces on annular ends

Pham Hoang Ha, Nguyen Hoang Trang

In this article, we study the modified defect relations of the Gauss map of complete minimal surfaces in $R^{3}$ and $R^{4}$ on annular ends. We obtain results which a…

Spanning trees of K1,4​-free graphs whose reducible stems have few leaves

Spanning trees with at most 5 leaves and branch vertices in total of K1,5​-free graphs

Modified defect relations of the Gauss map of complete minimal surfaces on annular ends

Spanning trees of $K_{1, 4}$ -free graphs whose reducible stems have few leaves

Spanning trees with at most $5$ leaves and branch vertices in total of $K_{1, 5}$ -free graphs