Remembering Reza Sarhangi

     In 1998 at Southwestern College in Winfield, KS an Iranian mathematician, Reza Sarhangi, organized the first of a series of annual Bridges conferences that celebrate the intersection of mathematics and the arts.  On July 1, 2016, this vital mathematician-artist passed away.  Many will celebrate the life of this warm and generous and talented man.

     Here is a link to Bridges history and here is a link to the Bridges website 

where you can learn a bit about Reza Sarhangi and about this year's conference in Finland. 

 Here is a link to an article by Sarhangi on Persian art -- indeed, it includes a poem. 

 Here is a link to samples of Sarhangi's art.  

Sarhangi was at the time of his death, a professor at Towson University. 

 Here is a link to his informative Towson webpage which I hope the university will keep alive.

In Praise of Fractals

     Philosopher Emily Grosholz is also a poet -- a poet who often writes of mathematics. Tessellations Publishing has recently (2014) published her collection Proportions of the Heart:  Poems that Play with Mathematics (with illustrations by Robert Fathauer) and she has given me permission to present one of the fine poems from that collection.

In Praise of Fractals     by Emily Grosholz

               Variations on the Introduction to
               The Fractal Geometry of Nature by Benoit Mandelbrot
               (New York: W. H. Freeman and Company, 1983)

Euclid’s geometry cannot describe,
nor Apollonius’, the shape of mountains,
puddles, clouds, peninsulas or trees.
Clouds are never spheres, 

BRIDGES poems, from 17 poets

Due to the hard work of mathematician-poet Sarah Glaz, poetry has been an important part of recent BRIDGES-Math-Art Conferences. And, under her editing, a Bridges 2013 Poetry Anthology has been released, featuring poetry from these poets who participated in one or more of the three most recent BRIDGES conferences (Enschede, Netherlands, 2013; Towson, Maryland, 2012; Coimbra, Portugal, 2011). 

One of the best -- and a woman

Women in mathematics have not been much-written-about.  This blog has made  a few corrective efforts and more are needed. Perhaps change is beginning -- for March is Women's History Month and the 2013 theme is:

 Women Inspiring Innovation Through Imagination:
Celebrating Women in Science, Technology, Engineering and Mathematics

Penn State University philosophy professor and poet Emily Grosholz uses mathematics not-infrequently in her work (for example, this posting of mine) and she has written (as I have) about discrimination suffered by mathematician Amalie "Emmy" Noether -- described by the NYTimes in a March 2012 article as "the most significant mathematician you've never heard of."  My own poem about Noether was  a poem of self-discovery in which I wrote of discrimination against her and began to see aspects of my own situation more clearly.  That poem, "My Dance Is Mathematics," appears in this blog's opening post --  on 23 March 2012.

Here, Emmy Noether is featured in Grosholz's poem, "Mind":

Can a mathematician see red?

Held late in July, this year's 2011 Bridges (Math-Arts) Conference in Coimbra, Portugal included a poetry reading for which I'd been invited to read but was, at the last minute, unable to attend. (See also 26 July 2011). Poets Sarah Glaz and Emily Grosholz each, however, read favorite selections from my work.  Glaz read one of my square poems, "The Bear Cave" (see 19 June 2011) and Grosholz read the poem shown below, "Can a Mathematician See Red?"

Bridges in Coimbra

     Newton's binomial is as beautiful as Venus de Milo.
     What happens is that few people notice it.

                -- Fernando Pessoa (as Álvaro de Campos) (1888-1935)
                    translated from the Portuguese by Francisco Craveiro

Reflections on the Transfinite

     Georg Cantor (1845-1918), a German mathematician, first dared to think the counter-intuitive notion that not all infinite sets have the same size--and then he proved it:  The set of all real numbers (including all of the decimal numbers representable on the number line) cannot be matched in a one-to-one pairing with the set of counting (or natural) numbers -- 1,2,3,4, . . . .   Sets whose elements can be matched one-to-one with the counting numbers are termed "countable" -- and Cantor's result showed that the set of all real numbers is uncountable.
     Cantor developed an extensive theory of transfinite numbers -- and poet (as well as philosopher and professor) Emily Grosholz reflects on these in a poem: