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Victor started his career as a management consultant with McKinsey & Company and later held senior management positions with Live Person and Art Technology Group (since acquired by Oracle Software). As a business consultant, Victor advises owners and CEOs of small businesses and Inc. 500 -calibre companies in their corporate decision-making.
He considered mathematics to be a social activity and often collaborated on his papers, having 511 joint authors, many of whom also have their own collaborators. The Erdős number measures the "collaborative distance" between an author and Erdős. Thus, his direct co-authors have Erdős number one, theirs have number two, and so forth.
Yingda Cheng (Chinese: 程颖达, born 1983) is a Chinese-American applied mathematician specializing in scientific computation and numerical analysis, including Galerkin methods for the computational solution of differential equations and the simulation of nonlinear optics and plasma physics. [1] She is a professor of mathematics at Virginia ...
Beyond Infinity : An Expedition to the Outer Limits of Mathematics is a popular mathematics book by Eugenia Cheng centered on concepts of infinity.It was published by Basic Books and (with a slightly different title) by Profile Books in 2017, [1] [2] [3] and in a paperback edition in 2018. [4]
Chen Chung Chang (Chinese: 张晨钟) was a mathematician who worked in model theory.He obtained his PhD from Berkeley in 1955 on "Cardinal and Ordinal Factorization of Relation Types" under Alfred Tarski.
Each chapter of the book begins with a recipe for a dessert, to illustrate the methods and principles of mathematics and how they relate to one another. The book is an explanation of the foundations and architecture of category theory , a branch of mathematics that formalizes mathematical structure and its concepts.
In 1975, Shiu-Yuen Cheng proved: Let ( M , g ) {\displaystyle (M,g)} be a complete and smooth Riemannian manifold of dimension n . If k is a positive number with Ric g ≥ ( n -1) k , and if there exists p and q in M with d g ( p , q ) = π / √ k , then ( M , g ) is simply-connected and has constant sectional curvature k .
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