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Professor Emeritus and former chair of the Mathematics Department at Oregon

State University. Professor Lonseth was a superb and devoted scholar and teacher

of mathematics. The lecture series is a continuing testimony to Arvid's

strong interest and commitment to the mathematical education of students, especially

undergraduates. He earned his B.A. in mathematics at Stanford University and

his doctorate under Hans Lewy at the University of California, Berkeley, in

1939. His research was principally in integral equations, the calculus of variations,

and computational methods. He joined the OSU Mathematics Department in 1948

at the invitation of department chair W. E. Milne and was promoted to full

professor three years later. During his tenure as department chair from academic

year 1954-55 to March of 1968, Professor Lonseth set the department firmly

and successfully on its present course: a department with wide expertise, with

a special interest in mathematics of the world around us, and with a dedication

to undergraduate education. He retired in 1978, but his interest in teaching

and learning never waned. Professor Lonseth attended virtually all of the Lonseth

lectures until his death in April 2002. He always viewed video tapes of the

lectures he could not attend due to poor health. These lectures remind us of our debt

to Arvid.