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pro vyhledávání: '"Mandal, Sagar"'
Does $20$ have a friend? Or is it a solitary number? A folklore conjecture asserts that $20$ has no friends i.e. it is a solitary number. In this article, we prove that, a friend $N$ of $20$ is of the form $N=2\cdot5^{2a}m^2$ and it has atleast six d
Externí odkaz:
http://arxiv.org/abs/2409.04451
Autor:
Mandal, Sourav, Mandal, Sagar
In this paper we propose necessary upper bounds for the second, third and fourth smallest prime divisors of friends of 10 based on the number of distinct prime divisors of it.
Comment: 12 pages
Comment: 12 pages
Externí odkaz:
http://arxiv.org/abs/2404.05771
Autor:
Mandal, Sagar, Mandal, Sourav
To answer the question "Is $10$ a solitary number?", we have established a necessary and sufficient condition on primes $p$ and $q$ so that $p$ divides $\sigma(q^{2a})$($a\in\mathbb{Z^+}$). Also We have found the form of $q$ whenever $p$ divides $\si
Externí odkaz:
http://arxiv.org/abs/2404.00624
Autor:
Mandal, Jyotirmoy, Anand, Jyothis, Mandal, Sagar, Brewer, John, Ramachandran, Arvind, Raman, Aaswath P.
Publikováno v:
In Cell Reports Physical Science 17 July 2024 5(7)
Thermal imaging and sensing technologies offer critical information about our thermally radiant world, and in recent years, have seen dramatic increases in usage for a range of applications. However, the cost and technical finesse of manufacturing in
Externí odkaz:
http://arxiv.org/abs/2106.14328
Autor:
Khatei, Ananya, Parhi, Janmejay, Uttameswar Behera, Dibyajyoti, Tripathy, Partha Sarathi, Chandra Mandal, Sagar, Behera, Bijay Kumar
Publikováno v:
In Current Research in Biotechnology 2024 8
Autor:
Mandal, Jyotirmoy, Mandal, Sagar, Brewer, John, Ramachandran, Arvind, Raman, Aaswath Pattabhi
Passive radiative cooling involves a net radiative heat loss into the cold outer space through the atmospheric transmission windows. Due to its passive nature and net cooling effect, it is a promising alternative or complement to electrical cooling.
Externí odkaz:
http://arxiv.org/abs/2006.11931
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Autor:
Kashyap, Shubham, Sahoo, Dibyajyoti, Singh, Yambem Suresh, Patel, Arun Bhai, Radhakrishnan, K.V., Pal, Prasenjit, Barman, Anindya Sundar, Mandal, Sagar Chandra, Saha, Ratan Kumar, Priyadarshi, Himanshu
Publikováno v:
In Gene Reports September 2023 32
Akademický článek
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