Finding ellipses what Blaschke products, Poncelet's theorem, and the numerical range know about each other by Daepp, Ulrich

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An introduction to Ramsey theory fast functions, infinity, and metamathematics by Katz, Matthew 1986-, Reimann, Jan 1971-

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A conversational introduction to algebraic number theory arithmetic beyond Z by Pollack, Paul

Matrix groups for undergraduates by Tapp, Kristopher

Knots, molecules, and the universe an introduction to topology by Flapan, Erica

Advanced modern algebra by Rotman, Joseph J.

Differential geometry curves, surfaces, manifolds by Kuhnel, Wolfgang

Introduction to analytic and probabilistic number theory by Tenenbaum, Gerald

Partial differential equations an accessible route through theory and applications by Vasy, Andras

Problems in real and functional analysis by Torchinsky, Alberto, author