29

Answers
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15
Proofs without words
5
Is there a category structure one can place on measure spaces so that category-theoretic products exist?
7
Fixed point theorems
4
Double Orthogonal Complement
2
Decent Texts on Categorical Logic
2
Constructions unique up to non-unique isomorphism
4
Reference for the Gelfand-Neumark theorem for commutative von Neumann algebras
4
Why does Hom need an identity in the definition of the category?
2
Can adjoint linear transformations be naturally realized as adjoint functors?
4
Seemingly emergent structures in mathematics
2
Topological Content of the Kakutani Fixed Point Theorem
7
Is there a “disjoint union” sigma algebra?
2
What kind of completion is this?
4
Why need the morphisms to form a set ?
4
Mono- and epi-morphisms for C*-algebras
2
What categorical mathematical structure(s) best describe the space of “localized events” in “relational quantum mechanics”?
8
adjoint of multiplication operator in a commutative algebra
2
Iterating monoid categories
5
Idempotent elements in matrix ring
1
What is the proper name for “compact closed” multiplicative intuitionistic linear logic?
1
Definition of Initial&Terminal Objects in an ``Object-Free'' Category
0
Associativity of polar decomposition
4
Are all endomorphisms of C^* just power maps?
1
Categorical nomenclature
5
What is the tensor product for the Eilenberg-Moore category of a commutative monad?
2
Intersections of maximal abelian von Neumann algebras
3
What is a de Vries algebra?
1
Algebras with countable chains only
1
Triangularizing a function matrix with smooth eigenvlaues