Comparing Dualities in the $K(n)$-local Category

Dualities between Cellular Sheaves and Cosheaves

This paper affirms a conjecture of MacPherson: that the derived category of cellular sheaves is equivalent to the derived category of cellular cosheaves. We give a self-contained treatment of cellular sheaves and cosheaves and note that certain classical dualities give rise to an exchange of sheaves with cosheaves. Following a result of Pitts that states that cosheaves are cocontinuous functors on the category of sheaves, we use the derived equivalence provided here to gain a novel description of compactly supported sheaf cohomology.

持续同调中的寿命函子与自然对偶性

Lifespan Functors and Natural Dualities in Persistent Homology

本文引入寿命函子，根据有界性过滤条形码区间，用于分类内射与投射对象，推广了持久（上）同调的对偶性结果，并为高效计算态射像、核与余核的条形码奠定基础。

Comparing the orthogonal and unitary functor calculi

The orthogonal and unitary calculi give a method to study functors from the category of real or complex inner product spaces to the category of based topological spaces. We construct functors between the calculi from the complexification-realification adjunction between real and complex inner product spaces. These allow for movement between the versions of calculi, and comparisons between the Taylor towers produced by both calculi. We show that when the inputted orthogonal functor is weakly polynomial, the Taylor tower of the functor restricted through realification and the restricted Taylor t…

Comparing globular complex and flow

A functor is constructed from the category of globular CW-complexes to that of flows. It allows the comparison of the S-homotopy equivalences (resp. the T-homotopy equivalences) of globular complexes with the S-homotopy equivalences (resp. the T-homotopy equivalences) of flows. Moreover, it is proved that this functor induces an equivalence of categories from the localization of the category of globular CW-complexes with respect to S-homotopy equivalences to the localization of the category of flows with respect to weak S-homotopy equivalences. As an application, we construct the underlying ho…

Comparing commutative and associative unbounded differential graded algebras over Q from homotopical point of view

In this paper we establish a faithfulness result, in a homotopical sense, between a subcategory of the model category of augmented differential graded commutative algebras CDGA and a subcategory of the model category of augmented differential graded algebras DGA over the field of rational numbers $\mathbb{Q}$.

具有对偶的无穷范畴与埃尔米特乘法无穷回路空间机器

Infinity categories with duality and hermitian multiplicative infinite loop space machines

本文证明具有对偶的预加性无穷范畴可产生直和埃尔米特K-理论谱，并构造E-无穷环谱，同时给出典范对偶的存在性及对偶的分类与扭曲。