activity
20122021
most citedCharacterizations of Connections for Positive Operators

4 citations · 14 across the 12 of their papers we have counts for

collaborators

12 papers

math.DG2021★ 2 cited

Finslerian indicatrices as algebraic curves and surfaces

P. Chansri, P. Chansangiam, S. V. Sabau

We show how to construct new Finsler metrics, in two and three dimensions, whose indicatrices are pedal curves or pedal surfaces of some other curves or surfaces. These Finsler met…

math.DG2018★ 1 cited

The geometry on the slope of a mountain

P. Chansri, P. Chansangiam, S. V. Sabau

The geometry on a slope of a mountain is the geometry of a Finsler metric, called here the {\it slope metric}. We study the existence of globally defined slope metrics on surfaces…

math.DG2018

On the existence of convex functions on Finsler manifolds

Sorin V. Sabau, Pattrawut Chansangiam

We show that a non-compact (forward) complete Finsler manifold whose Holmes- Thompson volume is infinite admits no non-trivial convex functions. We apply this result to some Finsle…

math.FA2015

Kantorovich Type Integral Inequalities for Tensor Product of Continuous Fields of Hilbert Space Operators

Pattrawut Chansangiam

This paper presents a number of Kantorovich type integral inequalities involving tensor products of continuous fields of bounded linear operators on a Hilbert space. Kantorovich ty…

math.FA2015

Characterizations of Operator Monotonicity via Operator Means and Applications to Operator Inequalities

Pattrawut Chansangiam

We prove that a continuous function is operator monotone increasing if and only if $f(A \: !_t \: B) \leqs f(A) \: !_t \: f(B)$ for any positive opera…

math.FA2014

Positivity, Betweenness and Strictness of Operator Means

Pattrawut Chansangiam

An operator mean is a binary operation assigned to each pair of positive operators satisfying monotonicity, continuity from above, the transformer inequality and the fixed-point pr…