Blog (mostly math)

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Speculation. What is always with “You” is your consciousness. Everything else is external. Read more

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“Logic will get you from A to Z; Imagination will get you everywhere.” - Einstein. Read more

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Speculation. Curiosity is the key to most human successes. Read more

Absolute Convergence

Ref: “Introduction to Hilbert Spaces” by Debnath, Mikusinski. Note that in ${ \mathbb{R} , }$ convergence of ${ \sum _{j = 1} ^{\infty} \vert x _j \vert }$ implies convergence of ${ \sum _{j = 1} ^{\infty} x _j . }$ Q) What are the normed spaces in which convergence of ${ \sum _{j = 1} ^{\infty} \lVert x _j \rVert }$ implies convergence of ${ ... Read more

Business-1 Microeconomics

Ref: UPenn Coursera courses on Business. Link to UPenn Coursera page: Link. ROUGH NOTES (!) Updated: 14/1/26 Link to UPenn MBA curriculum: Link. Course-1: Microeconomics Link to Coursera courses: Link, Link. Course-1a. Microeconomics: The power of markets Instructor: Prof. Rebecca Stein. Sections: Opportunity cost; Scarcity; Trade; S... Read more