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15
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What is the name for a matrix which is generated by a recursive sum whose form equals a recursive product when replacing the sums with products?

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#summation #category-theory #notation #logarithms #recurrence-relations
164
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What are some examples of injective sheaves?

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#algebraic-geometry #category-theory #homological-algebra
55
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Subcategory determined by composition series

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#abstract-algebra #category-theory #modules
87
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A doctrine is a categorification of a theory

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#logic #category-theory #higher-category-theory #categorical-logic
499
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Abelianization of Non-Abelian Groups

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#group-theory #category-theory #abelian-groups
75
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Solution check and question clarification request about a question on "generalized monoid" in Category theory.

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#category-theory #monoid #question-verification
74
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Terminology for "transposition" of monomorphism to epimorphism in simplex category?

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#combinatorics #category-theory #terminology #order-theory #simplicial-stuff
85
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Inclusion functor is final?

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#general-topology #algebraic-topology #category-theory #limits-colimits #adjoint-functors
246
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Kernels and cokernels in categories without zero

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#reference-request #category-theory
46
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Lifting smooth function $f:M\to S^1$ to a function $f:M\to\mathbb{R}$

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#algebraic-topology #category-theory #manifolds #fundamental-groups #covering-spaces
103
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Let $R \in \textbf{Ring}$. Show that $A_1 \otimes_R A_2 \in \textbf{Ring}$.

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#abstract-algebra #category-theory
131
Views

Standard decomposition of vector-space endomorphism as direct sum of abelian groups

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#linear-algebra #abstract-algebra #category-theory #abelian-groups #free-modules
31
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Why are constant sheaves all a twist of a perverse sheaf?

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#category-theory
51
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How are eigenspaces of an vector space endomorphism related to the decomposition as a direct sum of abelian groups?

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#abstract-algebra #category-theory #modules #abelian-groups #minimal-polynomials
122
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Question 3.1.1 in AT

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#algebraic-topology #category-theory #homology-cohomology #functors #algebraic-k-theory

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