Conventional telescopes are limited in detecting low-surface-brightness (LSB) structures, which are essential for studying galaxy evolution. Now, researchers have developed a new telescope system ...

Abstract: This paper studies the projected saddle-point dynamics associated to a convex-concave function, which we term saddle function. The dynamics consists of gradient descent of the saddle ...

Kashyap G, Malik K, Wazir S & Brownlee A (2025) Optimization of the rectangle area inside a concave polygon using PSO and Tabu Search. Soft Computing. https://doi.org ...

To control light, curved lenses are used today, that are often made of glass that is either concave or convex, which refracts the light in different ways. These types of lenses can be found in ...

Abstract: As a widely used method in signal processing, Principal Component Analysis (PCA) performs both the compression and the recovery of high dimensional data by leveraging the linear ...

Concavity is a fundamental concept in mathematics, particularly in calculus and optimization. It describes the curvature of a function and provides insights into its behavior. A function is classified ...

We explore the economic effects of biodiversity loss by developing an ecologically-founded model that captures how different species interact to deliver the ecosystem services that complement other ...

This paper derives the curvature properties of the short-run Phillips curve for a wide class of models with time-dependent pricing frictions. Contrary to conventional thinking, the Phillips curve is ...

Carson Sudbeck didn't think much about his concave chest until he was scrolling TikTok and discovered corrective surgery Wendy Grossman Kantor is an award-winning journalist who has spent 20 years as ...

FLGX(Flexible Lightweight Graphics Library) is an open-source C#(.NET) graphics rendering library meant to streamline graphics programming and let you work more on your games rather than spend tons of ...

Each renal vein carries blood from the kidney back to the heart. The left renal vein is longer and drains into the inferior vena cava. The renal veins are associated with certain medical conditions, ...

The multiple exchange property for matroid bases is generalized for valuated matroids and M-natural concave set functions. The proof is based on the Fenchel-type duality theorem in discrete convex ...