University of Jiroft | hasan barsam

Research

Title	DECOMPOSITION OF k(t) AS A SUM OF FINITELY MANY PROPER SUBFIELDS
Type	Presentation
Keywords	Field, sum of subfields, rational function field, L¨uroth’s Theorem.
Researchers	Reza Mahmoudi, hamidreza dorbidi, Morteza Jafarpour, hasan barsam

In this note we prove if k(t) is sum of two proper subfields, then for each n ≥ 2 it is an unshortenable sum of n proper subfields which contains k.