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Arjun Kumar

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Articles

Open-weight AI: when the model becomes a utility

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By Arjun Kumar, Nitish Mittal
| Everest Group
The Artificial Intelligence (AI) market has run on one question: whose model is smartest? That question is losing commercial weight, and open weights have finally broken it. On July 24, twenty-five US technology companies signed Open Weights and American AI Leadership, urging Washington not to restrict open-weight models. The signatories included NVIDIA, Microsoft, Meta, IBM, Dell, Palantir, ServiceNow, Mistral, Hugging Face, and Andreessen Horowitz.
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Beyond Puri, Odisha's heritage temples await travellers

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By Arjun Kumar
| Moneycontrol Verified
Odisha's villages, temples and Buddhist sites reveal centuries of history. Exploring beyond Puri offers a deeper understanding of the state's remarkable cultural heritage August 07, 2026 / 14:07 IST Impressive doorway of the monastery site at Ratnagiri in Jajpur district. (Source: Arjun Kumar) first published: Aug 7, 2026 02:06 pm Discover the latest Business News, Sensex, and Nifty updates.
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Mathematics > General Mathematics

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By Arjun Kumar, Feng Qi, Dongkyu Lim
| arXiv
The objective of this paper is to develop an extension of Kummer's second theorem and to establish generalized forms of four classical combinatorial identities---Knuth's old sum (also known as Reed--Dawson's combinatorial identity), Riordan's combinatorial identity, Gould's combinatorial identity, and Touchard's combinatorial identity---using a hypergeometric-series approach.
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