AbstractWe show that given a finite group G a hypermap can be constructed having automorphism group isomorphic to G. The bipartite map of a modified version of this hypermap then affords a map with the same property
AbstractDuality and chirality are examples of operations of order 2 on hypermaps. James showed that ...
AbstractWe present a group ℌ, isomorphic to PGL(2, ℤ), of operations on hypermaps, and a group ℌ, is...
AbstractIf H is a hypermap with bit set B, a voltage assignment on H is simply a map z:B→Z, where Z ...
AbstractWe show that given a finite group G a hypermap can be constructed having automorphism group ...
It is shown that in various categories, including many consisting of maps or hypermaps, oriented or ...
It is shown that in various categories, including many consisting of maps or hypermaps, oriented or ...
AbstractWe present a group ℌ, isomorphic to PGL(2, ℤ), of operations on hypermaps, and a group ℌ, is...
This is a survey of infinite hypermaps, and of how they can be constructed by using examples and tec...
AbstractIf a linear graph is imbedded in a surface to form a map, then the map has a group of automo...
AbstractThe purpose of the present note is essentially twofold. First we indicate how coverings of m...
If S is a compact Riemann surface of genus g> 1, then S has at most 84(g − 1) (orientation preser...
AbstractWe show that for any group H (finite or infinite) there exists an independence structure wit...
AbstractIf H is a hypermap with bit set B, a voltage assignment on H is simply a map z:B→Z, where Z ...
AbstractAny group of automorphisms of a graph G induces a notion of isomorphism between covering pro...
AbstractWe give an algebraic proof of the Birman–Bers theorem—an algebraic result whose previous pro...
AbstractDuality and chirality are examples of operations of order 2 on hypermaps. James showed that ...
AbstractWe present a group ℌ, isomorphic to PGL(2, ℤ), of operations on hypermaps, and a group ℌ, is...
AbstractIf H is a hypermap with bit set B, a voltage assignment on H is simply a map z:B→Z, where Z ...
AbstractWe show that given a finite group G a hypermap can be constructed having automorphism group ...
It is shown that in various categories, including many consisting of maps or hypermaps, oriented or ...
It is shown that in various categories, including many consisting of maps or hypermaps, oriented or ...
AbstractWe present a group ℌ, isomorphic to PGL(2, ℤ), of operations on hypermaps, and a group ℌ, is...
This is a survey of infinite hypermaps, and of how they can be constructed by using examples and tec...
AbstractIf a linear graph is imbedded in a surface to form a map, then the map has a group of automo...
AbstractThe purpose of the present note is essentially twofold. First we indicate how coverings of m...
If S is a compact Riemann surface of genus g> 1, then S has at most 84(g − 1) (orientation preser...
AbstractWe show that for any group H (finite or infinite) there exists an independence structure wit...
AbstractIf H is a hypermap with bit set B, a voltage assignment on H is simply a map z:B→Z, where Z ...
AbstractAny group of automorphisms of a graph G induces a notion of isomorphism between covering pro...
AbstractWe give an algebraic proof of the Birman–Bers theorem—an algebraic result whose previous pro...
AbstractDuality and chirality are examples of operations of order 2 on hypermaps. James showed that ...
AbstractWe present a group ℌ, isomorphic to PGL(2, ℤ), of operations on hypermaps, and a group ℌ, is...
AbstractIf H is a hypermap with bit set B, a voltage assignment on H is simply a map z:B→Z, where Z ...
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