supremum and infimum - Why is the lagrange dual function concave

In a book I'm reading (Convex Optimization by Boyd and Vandenberghe) it says I'm struggling to understand the last sentence. Why can one conclude concavity from having a pointwise infimum of a fam

Fenchel's duality theorem - Wikipedia

Non-concave Expected Utility Optimization with Uncertain Time

CSE 203B: Convex Optimization Week 6 Discuss Session - ppt download

Entropy, Free Full-Text

Essentials of Convex Optimization

Total Internal Reflection : Musings on Machine Learning

PDF) Alternating Subgradient Methods for Convex-Concave Saddle

Convex Optimization Without the Agonizing Pain

A very brief introduction to convex optimization -- Part 2

PDF) Optimal investment problem under behavioral setting: A

Entropy, Free Full-Text

Convex Relaxations of Integral Variational Problems: Pointwise

PDF) Lagrange and Wolf Dualities in Nonholonomic Optimization

Dual Function Strength - PPL Fitness

Dual Function Backpack to Tote Bag 18L, Raw Linen

Self Dual Function How to find Self Dual Function of Any Boolean

Dual Function Thermostatic Valve Trim

RYOBI 18V ONE+ Dual Function Cordless Inflator/Deflator (Tool Only)