H-Coextensions in the category of compact semigroups.
Heterogeneous monoid automata and admissible bisystems
Higher dimensional algebra. VII: Groupoidification.
Higher-dimensional categories with finite derivation type.
Homomorphisms of algebras
A construction of all homomorphisms of an algebra with a finite number of operations into an algebra of the same type is presented that consists in replacing algebras by suitable mono-unary algebras (possibly with some nullary operations) and their homomorphisms by suitable homomorphisms of the corresponding mono-unary algebras. Since a construction of all homomorphisms between two mono-unary algebras is known (see, e.g., [6], [7], [8]), a construction of all homomorphisms of an arbitrary algebra...
Homomorphisms of ergodic group actions and conjugacy of skew product actions.
Homomorphisms of heterogeneous algebras
A construction of all homomorphisms of a heterogeneous algebra into an algebra of the same type is presented. A relational structure is assigned to any heterogeneous algebra, and homomorphisms between these relational structures make it possible to construct homomorphisms between heterogeneous algebras. Homomorphisms of relational structures can be constructed using homomorphisms of algebras that are described in [11].
Homomorphisms of unary algebras and of their expansions
Homotopic pullbacks, Lax pullbacks, and exponentiability
Homotopy preserving functors
Homotopy transition cocycles.
Hull operators on a category of spaces of continuous functions on Hausdorff spaces