Definition LT. Linear Transformation. A linear transformation, T : U â V , is a function that carries elements of the vector space U (called the domain) to the vector space V (called the codomain), and which has two additional properties.
Raynaud's sometimes is called a disease, syndrome, or phenomenon. The disorder is marked by brief episodes of vasospasm (VA-so-spazm), which is a narrowing of the blood vessels. Vasospasm of the arteries reduces blood flow to the fingers and toes. In people who have Raynaud's, the disorder usually affects the fingers.
Autoimmune conditions known to be associated with secondary Raynaudâs include: 1  scleroderma â a condition that causes hardening and thickening of the skin. 2  rheumatoid arthritis â which causes joint pain and swelling. 3  Sjogren's syndrome â where the immune system attacks the bodyâs sweat and tear glands.