Faculty Profiles - XU Luze | The Hong Kong University of Science and Technology

Luze XU
徐蘆澤

PhD in Industrial and Operations Engineering
University of Michigan, 2022

Assistant Professor
Department of Mathematics

(852) 2358 7447
xuluze@ust.hk
Room 3483
Personal Web

Google Scholar

C3bhbaMAAAAJ

ORCID

0000-0001-5705-4403

ResearcherID

EEC-8886-2022

Scopus ID

57208903964

Research Interest Publications Teaching Assignment

Research Interest

Optimization
Mixed integer programming
Operations research
Discrete mathematics and combinatorics

Publications

All Years 12 2026 0 2025 5 2024 3 2023 1 2022 1 2021 2

2025 5

Extended formulations for the integer hull of strictly Δ-modular cographic polyhedral cones

Operations Research Letters, v. 60, article number 107235
Paat, Joseph; Walsh, Zach; Xu, Luze
Article

Gaining or losing perspective for convex multivariate functions on box domains

Mathematical Programming, v. 211, (1), p. 319-339
Xu, Luze; Lee, Jon
Article

Good and fast row-sparse ah-symmetric reflexive generalized inverses

Open Journal of Mathematical Optimization, v. 6, p. 1-24, article number 12
PONTE, GABRIEL; FAMPA, MARCIA; Lee, Jon; XU, Luze
Article

Improved mixing and pressure loss formulations for gas network optimization

Optimization and Engineering, v. 26, (4), p. 2731-2758
Kim, Geonhee; Lourenco, Christopher; Skipper, Daphne; Xu, Luze
Article

Integer points in arbitrary convex cones: the case of the PSD and SOC cones

Mathematical Programming
De Loera, Jesús A.; Marsters, Brittney; Xu, Luze; Zhang, Shixuan
Article

2024 3

Gaining or losing perspective for convex multivariate functions on a simplex

Journal of Global Optimization, v. 89, (2), p. 379-413
Xu, Luze; Lee, Jon
Article

On computing sparse generalized inverses

Operations Research Letters, v. 52, article number 107058
Ponte, Gabriel; Fampa, Marcia; Lee, Jon; Xu, Luze
Article

ON THE COLUMN NUMBER AND FORBIDDEN SUBMATRICES FOR ∆-MODULAR MATRICES

SIAM Journal on Discrete Mathematics, v. 38, (1), p. 1-18
Paat, Joseph; Stallknecht, Ingo; Walsh, Zach; Xu, Luze
Article

2023 1

Gaining or Losing Perspective for Piecewise-Linear Under-Estimators of Convex Univariate Functions

Journal of Optimization Theory and Applications, v. 196, (1), p. 1-35
Lee, Jon; Skipper, Daphne; Speakman, Emily; Xu, Luze
Article

2022 1

Polynomial upper bounds on the number of differing columns of Δ-modular integer programs

Mathematics of Operations Research
Lee, Jon; Paat, Joseph; Stallknecht, Ingo; XU, Luze
Article

2021 2

Approximate 1-norm minimization and minimum-rank structured sparsity for various generalized inverses via local search

SIAM Journal on Optimization, v. 31, (3), p. 1722-1747
XU, LUZE; FAMPA, MARCIA; LEE, JON; PONTE, GABRIEL
Article

Experimental analysis of local searches for sparse reflexive generalized inverses

Journal of Global Optimization, v. 81, (4), p. 1057-1093
Fampa, Marcia; Lee, Jon; Ponte, Gabriel; Xu, Luze
Article

Article 5

Extended formulations for the integer hull of strictly Δ-modular cographic polyhedral cones

Operations Research Letters, v. 60, article number 107235
Paat, Joseph; Walsh, Zach; Xu, Luze

Gaining or losing perspective for convex multivariate functions on box domains

Mathematical Programming, v. 211, (1), p. 319-339
Xu, Luze; Lee, Jon

Good and fast row-sparse ah-symmetric reflexive generalized inverses

Open Journal of Mathematical Optimization, v. 6, p. 1-24, article number 12
PONTE, GABRIEL; FAMPA, MARCIA; Lee, Jon; XU, Luze

Improved mixing and pressure loss formulations for gas network optimization

Optimization and Engineering, v. 26, (4), p. 2731-2758
Kim, Geonhee; Lourenco, Christopher; Skipper, Daphne; Xu, Luze

Integer points in arbitrary convex cones: the case of the PSD and SOC cones

Mathematical Programming
De Loera, Jesús A.; Marsters, Brittney; Xu, Luze; Zhang, Shixuan

Article 3

Gaining or losing perspective for convex multivariate functions on a simplex

Journal of Global Optimization, v. 89, (2), p. 379-413
Xu, Luze; Lee, Jon

On computing sparse generalized inverses

Operations Research Letters, v. 52, article number 107058
Ponte, Gabriel; Fampa, Marcia; Lee, Jon; Xu, Luze

ON THE COLUMN NUMBER AND FORBIDDEN SUBMATRICES FOR ∆-MODULAR MATRICES

SIAM Journal on Discrete Mathematics, v. 38, (1), p. 1-18
Paat, Joseph; Stallknecht, Ingo; Walsh, Zach; Xu, Luze

Article 1

Gaining or Losing Perspective for Piecewise-Linear Under-Estimators of Convex Univariate Functions

Journal of Optimization Theory and Applications, v. 196, (1), p. 1-35
Lee, Jon; Skipper, Daphne; Speakman, Emily; Xu, Luze

Article 1

Polynomial upper bounds on the number of differing columns of Δ-modular integer programs

Mathematics of Operations Research
Lee, Jon; Paat, Joseph; Stallknecht, Ingo; XU, Luze

Article 2

Approximate 1-norm minimization and minimum-rank structured sparsity for various generalized inverses via local search

SIAM Journal on Optimization, v. 31, (3), p. 1722-1747
XU, LUZE; FAMPA, MARCIA; LEE, JON; PONTE, GABRIEL

Experimental analysis of local searches for sparse reflexive generalized inverses

Journal of Global Optimization, v. 81, (4), p. 1057-1093
Fampa, Marcia; Lee, Jon; Ponte, Gabriel; Xu, Luze

No Publications

Teaching Assignment

2025-26 Spring 1 2025-26 Winter 0 2025-26 Fall 0 2024-25 Summer 0 2024-25 Spring 0 2024-25 Winter 0

MATH2350

Applied Linear Algebra and Differential Equations

No Teaching Assignments

Research Interest

Publications

2025 5

2024 3

2023 1

2022 1

2021 2

Article 5

Article 3

Article 1

Article 1

Article 2

Teaching Assignment

Projects

From January 2024 to December 2026

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