壕沟
发表于 2025-3-25 07:21:01
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DEFER
发表于 2025-3-25 08:22:38
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贫困
发表于 2025-3-25 15:11:09
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细胞学
发表于 2025-3-25 15:54:20
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sultry
发表于 2025-3-25 22:53:23
Organotrifluoroborate Coupling,We give an overview of the long and distinguished career of Professor George E. Strecker in the fields of topology and, in particular, categorical topology.
意外
发表于 2025-3-26 01:28:30
Bell Tests in Bipartite Scenarios,I am indeed honored that a gathering was organized to celebrate my sixtieth birthday. When I turned forty, Horst Herrlich told me that at that point I was entitled to wax philosophical.. So now I feel that I am more than entitled — I’m actually obliged to do so. So here goes…
殖民地
发表于 2025-3-26 07:03:20
https://doi.org/10.1007/978-3-319-01405-0A brief survey of the development of the theory of closure operators is presented. Results concerning the applications of the theory to epimorphisms, separation, compactness and connectedness are also included together with a number of supporting examples.
主动
发表于 2025-3-26 11:16:26
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Spina-Bifida
发表于 2025-3-26 15:09:34
Daniel McInerney,Pieter KempeneersWe prove that the copnumber of a finite connected graph of genus . is bounded by +3. In particular this means that the copnumber of a toroidal graph is bounded by 4. We also sketch a proof that the copnumber of a graph of genus 2 is bounded by 5.
CURB
发表于 2025-3-26 17:01:43
Categories: A Free Tour,Category theory plays an important role as a unifying agent in a rapidly expanding universe of mathematics. In this paper, an introduction is given to the basic definitions of category theory, as well as to more advanced concepts such as adjointness, factorization systems and cartesian closedness.