Surgery obstruction

In mathematics, specifically in surgery theory, the surgery obstructions define a map $\theta \colon \mathcal{N} (X) \to L_n (\pi_1 (X))$ from the normal invariants to the L-groups which is in the first instance a set-theoretic map (that means not necessarily a homomorphism) with the following property when $n \geq 5$ :

单词	Surgery obstruction
释义	Surgery obstruction 英语百科 Surgery obstruction In mathematics, specifically in surgery theory, the surgery obstructions define a map $\theta \colon \mathcal{N} (X) \to L_n (\pi_1 (X))$ from the normal invariants to the L-groups which is in the first instance a set-theoretic map (that means not necessarily a homomorphism) with the following property when $n \geq 5$ :
随便看	squamomastoid的意思 Squamomastoid suture of skull的意思 squamooccipital bone的意思 squamo occipital bone的意思 squamoparietal的意思 squamoparietal suture的意思 squamopetrosal的意思 squamopygidium的意思 Squamosa的意思 squamosal的意思 Squamosal bone的意思 squamosal border的意思 squamosal margin的意思 squamosal的意思 Squamosal suture的意思 squamosamide的意思 squamose的意思 squamose erosion的意思 squamosely的意思 squamose structure的意思 squamosity的意思 squamosomastoid suture的意思 squamosoparietal的意思 squamosoparietal suture的意思 squamosoprietal suture的意思