SU-EE364A JAN202026
Last edited: January 1, 2026Key Sequence
Notation
New Concepts
- Types of convex problems
- problem transformation
Important Results / Claims
Questions
Interesting Factoids
SU-SOC175 JAN142025
Last edited: January 1, 2026Key Insights
- Does China have a modern form of government?
- China’s National Government as a Hierarchy: is it centralized? Meritocratic?
Forms of Government
- Modern Government Model (“European Model”—Enlightenment English/Scottish/French): state should adjudicate interests in a fair and legitimate fashion
- US Government Model: hybrid, constitutional, late 18th entry design (i.e. “government is designed to stop things”)
- Alternative Model (“Developer Model”): State’s purpose is to push national progress through economic and military strength (i.e. “the government pushes things forward)
- China
- Axis Powers
Modern Government
We typical define a modern government as a liberal democratic government. But China’s system is in some sense much newer than liberal democracy—invented by the Soviets.
Words to Concepts
Last edited: January 1, 2026Chen’s Talk.
constructive convexity verification
Last edited: January 1, 2026- start with function \(f\) gives as expression
- build parse tree for expression (leaves and variables / constants, nodes are functions of child expressions)
- apply general composition rule that preserve convexity
Greedy parses may fail, such as in the case of logsumexp.
Euclidian Geometry Crash Course
Last edited: January 1, 2026line
All points of the form \(x = \theta x_{1} + \qty(1-\theta) x_{2}\), with \(\theta \in \mathbb{R}\) is a “line through \(x_1\), \(x_2\)”.
affine set
For set \(G\), for all two points \(x_1, x_2 \in G\), all points lying on the line \(x_1, x_2 \in G\). For instance, the solution set of a set of linear equations \(\qty {x \mid A x = b}\).
convex set
line segment
all points form \(x = \theta x_{1} + \qty(1-\theta)x_{2}\), with \(0 \leq \theta \leq 1\).
