We give a Pontryagin-Thom type construction for −1-codimensional fold maps. We obtain results about cobordism and bordism groups of fold maps of oriented (n+1)-dimensional manifolds into n-dimensional manifolds in an analogous way to the Pontryagin-Thom type construction for positive codimensional singular maps.

We use orbifold structures to deduce degeneracy statements for holomorphic maps into logarithmic surfaces. We improve former results in the smooth case and generalize them to singular pairs. In particular, we give applications on nodal surfaces and complements of singular plane curves.

Forests are defined in many different ways. Apart from ecological and structural factors, associated values provided ecosystem services an important part of forest definitions. Typically, types differentiated based on climatic regions degrees human modification. A better understanding how to distinguish forests the basis they provide is needed advance global policies put forward by organisation...

Predictive modeling of habitat distribution of range plant species and identification of their potential habitats play important roles in the restoration of disturbed rangelands. This study aimed to predict the geographical distribution of Artemisia sieberi and find the influential variables in the distribution of A. sieberi in the desert rangelands of central Iran. Maps of environmental variab...