Blog (mostly math)

Kernel Density Estimators

Ref: “Data Analysis for Social Scientists” by Duflo, Ellison. Lec-5. Link to the lecture: Link. Scikit-learn’s Density estimation documentation. Link to the page: Link. “Introduction to Mathematical Statistics” by Hogg, McKean, Craig. “Introduction to Nonparametric Estimation” by Tsybakov. “Smoothing methods in Statistics” by Simonoff... Read more

Post

Speculation. How did we learn as infants? We learn by a combination of: innate curiosity, innate drives, observing and mimicking the people around us. We do the same as adults at a subconscious level. Eg: \[{ \boxed{ \text{We are influenced by } \textbf{reading "They are" statements}. } }\] Read more

Entropy Power Inequality

Ref: “On the similarity of the Entropy Power Inequality and the Brunn Minkowski inequality” by Costa, Cover. “The Convolution Inequality for Entropy Powers” by Blachman. “Simple Proof of the Concavity of the Entropy Power with respect to added Gaussian Noise” by Dembo. “Stochastic Models, Information Theory, and Lie Groups, Vol 1” by Ch... Read more

Cartan-Dieudonne

Ref: Marc van Leeuwen’s answer here: Link. Let ${ E }$ be an ${ n }$ dimensional Euclidean space. What are the origin and distance preserving maps ${ f : E \longrightarrow E }$? Obs: Let ${ E }$ be an ${ n }$ dimensional Euclidean space. Let ${ f : E \longrightarrow E . }$ Then the following are equivalent: ${ \lVert f(x) - f(y) \rVe... Read more

Theoretical Minimum

Link to Courses: Link. ROUGH NOTES (!) Updated: 4/4/25 The Milky Way Galaxy. Read more