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Geometric Composition Algebra

open access: yes
Geometric Composition Algebra (GCA) is a combinatorial–geometric framework defined on finite configurations of unit cells arranged in horizontal line segments with an oriented reference.Configurations are manipulated through a small set of elementary operators, including homothetic expansion, stacking, fusion, geometric complement, maximization ...
openaire   +1 more source

A trust‐region funnel algorithm for gray‐box optimization

open access: yesAIChE Journal, Volume 72, Issue 5, May 2026.
Abstract Gray‐box optimization, where parts of optimization problems are represented by algebraic models while others are treated as black‐box models lacking analytic derivatives, remains a challenge. Trust‐region (TR) methods provide a robust framework for gray‐box problems through local reduced models (RMs) for black‐box components, but they are ...
Gul Hameed   +4 more
wiley   +1 more source

Isometries of Spacetimes Without Observer Horizons. [PDF]

open access: yesCommun Math Phys
García-Heveling L, Zeghib A.
europepmc   +1 more source

幾何データからのGeometric Algebraを用いた特徴抽出

open access: green, 2008
Minh Tuan Pham   +5 more
openalex   +1 more source

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