On the average value of divisor sums in arithmetic progressions

We consider very short sums of the divisor function in arithmetic progressions prime to a fixed modulus and show that ``on average'' these sums are close to the expected value. We also give applications of our result to sums of the divisor function twisted with characters (both additive a...

Full description

Bibliographic Details
Main Authors: Heath-Brown, D, Banks, W, Shparlinski, I
Format: Journal article
Published: 2005
_version_ 1826303695298494464
author Heath-Brown, D
Banks, W
Shparlinski, I
author_facet Heath-Brown, D
Banks, W
Shparlinski, I
author_sort Heath-Brown, D
collection OXFORD
description We consider very short sums of the divisor function in arithmetic progressions prime to a fixed modulus and show that ``on average'' these sums are close to the expected value. We also give applications of our result to sums of the divisor function twisted with characters (both additive and multiplicative) taken on the values of various functions, such as rational and exponential functions; in particular, we obtain upper bounds for such twisted sums.
first_indexed 2024-03-07T06:06:37Z
format Journal article
id oxford-uuid:ee1091b2-5d37-4f1a-8149-aa6cd0f02cf6
institution University of Oxford
last_indexed 2024-03-07T06:06:37Z
publishDate 2005
record_format dspace
spelling oxford-uuid:ee1091b2-5d37-4f1a-8149-aa6cd0f02cf62022-03-27T11:29:54ZOn the average value of divisor sums in arithmetic progressionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ee1091b2-5d37-4f1a-8149-aa6cd0f02cf6Mathematical Institute - ePrints2005Heath-Brown, DBanks, WShparlinski, IWe consider very short sums of the divisor function in arithmetic progressions prime to a fixed modulus and show that ``on average'' these sums are close to the expected value. We also give applications of our result to sums of the divisor function twisted with characters (both additive and multiplicative) taken on the values of various functions, such as rational and exponential functions; in particular, we obtain upper bounds for such twisted sums.
spellingShingle Heath-Brown, D
Banks, W
Shparlinski, I
On the average value of divisor sums in arithmetic progressions
title On the average value of divisor sums in arithmetic progressions
title_full On the average value of divisor sums in arithmetic progressions
title_fullStr On the average value of divisor sums in arithmetic progressions
title_full_unstemmed On the average value of divisor sums in arithmetic progressions
title_short On the average value of divisor sums in arithmetic progressions
title_sort on the average value of divisor sums in arithmetic progressions
work_keys_str_mv AT heathbrownd ontheaveragevalueofdivisorsumsinarithmeticprogressions
AT banksw ontheaveragevalueofdivisorsumsinarithmeticprogressions
AT shparlinskii ontheaveragevalueofdivisorsumsinarithmeticprogressions