Sunday, December 30, 2012

Ramanujan’s “deathbed” puzzle

American mathematicians solve Ramanujan’s “deathbed” puzzle

HASAN SUROOR
“Ramanujan's legacy is much more important than anything anyone would have guessed”
American researchers claim to have solved a cryptic formula that renowned mathematician Srinivasa Ramanujan believed came to him in dreams while on his deathbed, the Daily Mailreported on Saturday. The formula was contained in a letter he wrote to his mentor, the English mathematician G.H. Hardy, from his deathbed in 1920 outlining several new mathematical functions that had never been heard of before, together with a theory about how they worked. It had baffled mathematicians for more than 90 years, but new findings — presented at a conference at the University of Florida last month — reportedly show that Ramanujan’s “hunch” about his formula was right — that it could explain the behaviour of black holes.
“We've solved the problems from his last mysterious letters,” said the well-known American mathematician Ken Ono of Emory University. “For people who work in this area of math, the problem has been open for 90 years … Ramanujan's legacy, it turns out, is much more important than anything anyone would have guessed when Ramanujan died.”
He said the so-called “deathbed puzzle” which, according to Ramanujan, was revealed to him by the goddess Namagiri, may unlock secrets about black holes. “We proved that Ramanujan was right. We found the formula explaining one of the visions that he believed came from his goddess. No one was talking about black holes back in the 1920s when Ramanujan first came up with mock modular forms, and yet, his work may unlock secrets about them,” said Professor Ono.
The Mail said that Ramanujan’s letter described several new functions that behaved differently from known theta functions, or modular forms, and yet closely mimicked them.
“Functions are equations that can be drawn as graphs on an axis, like a sine wave, and produce an output when computed for any chosen input or value. Ramanujan conjectured that his mock modular forms corresponded to the ordinary modular forms earlier identified by Carl Jacobi, and that both would wind up with similar outputs for roots of 1,” it said. Nobody at the time understood what the Indian mathematical genius was talking about.
“It wasn’t until 2002, through the work of Sander Zwegers, that we had a description of the functions that Ramanujan was writing about in 1920,” Prof. Ono said.
His team, which used modern mathematical tools to solve the puzzle, was “stunned” to find the function could be used even today.
http://www.thehindu.com/news/american-mathematicians-solve-ramanujans-deathbed-puzzle/article4253593.ece?homepage=true

Saturday, October 27, 2012

WORLD TOP COMPANIES UNDER FINANCIAL PRESSURE...


Amazon reports first quarterly net loss in years

AGENCIES

Posted: Friday, Oct 26, 2012 at 1828 hrs IST
San Francisco: Amazon.com Inc reported its first quarterly net loss in more than five years on Thursday as the world's largest Internet retailer spent heavily and suffered from an economic slowdown in Europe.
Amazon shares slipped slightly to $220.75 in after-hours trading after the results.The company said its third-quarter net loss was $274 million, or 60 cents a share, versus net income of $63 million, or 14 cents a share, in the third quarter of 2011. Part of the loss related to an impairment charge from Amazon's investment in daily deal company LivingSocial.
Third-quarter revenue was $13.81 billion, up 27 percent from a year earlier, Amazon also said.Amazon was expected to lose 8 cents a share in the third quarter on revenue of $13.9 billion, according to Thomson Reuters I/B/E/S. The last time Amazon reported a quarterly net loss was in the third quarter of 2003, according to Thomson Reuters data……..http://www.financialexpress.com/news/amazon-reports-first-quarterly-net-loss-in-years/1022443/0
FE Home- Infotech - Story

Apple's weak margin outlook surprises analysts

AGENCIES

Posted: Friday, Oct 26, 2012 at 1840 hrs IST
At least three brokerages cut their price targets on Apple Inc by up to $50 a share after the iPhone maker surprised analysts by forecasting lower gross margins for the current quarter.
Apple shares edged lower 0.1 percent to $608.85 in premarket trading.
For the December quarter, Apple forecast revenue of $52 billion, below estimates of $55 billion, according to Thomson Reuters I/B/E/S. It expects margins of 36 percent, far lower than analysts' expectations of 43 percent.
Analysts focused on the decline in margins and played down the significance of a fall in iPad sales in the last quarter, as users waited for the iPad mini, and they did not expect this to continue.
Apple's forecast decline in gross margin, even assuming it was deliberately aiming low, still pointed to an unusual decline, Evercore Partners analysts Rob Cihra and Edison Yu said in a research note. Evercore cut its price target on the stock : At least three brokerages cut their price targets on Apple Inc by up to $50 a share after the iPhone maker surprised analysts by forecasting lower gross margins for the current quarter……..http://www.financialexpress.com/news/apples-weak-margin-outlook-surprises-analysts/1022450/0
FE Home- Infotech - Story

Apple warns of holiday earnings drop

AGENCIES

Posted: Friday, Oct 26, 2012 at 1543 hrs IST
New York: Apple has a new iPhone, two new iPads and three new PCs as it heads into the holiday quarter, the biggest selling season of the year. But, paradoxically, it expects these new gadgets to bring down its profits compared to last year. The reason: the new gadgets are expensive to make, Apple executives said Thursday, and the company is not interested in cutting corners for the sake of short-term returns.
On top of the holiday-quarter warning, the company reported earnings for its just-ended quarter that missed Wall Street's expectations for the second quarter in a row – something that hasn't happened in more than a decade……http://www.financialexpress.com/news/apple-warns-of-holiday-earnings-drop/1022381/

Friday, October 26, 2012

Citigroup fined $2 million over facebook IPO

Citigroup fined $2 million over facebook IPO

Associated Press | Updated On: October 26, 2012 22:36 (IST)New York: The top securities regulator in Massachusetts has fined Citigroup $2 million, charging that an analyst there leaked confidential information about Facebook's initial public offering.

Secretary of the Commonwealth William Galvin announced the charges Friday. Citi agreed to the settlement without admitting or denying wrongdoing.

Citi was part of the team of banks that helped underwrite the deal that made Facebook a public company in May. When a bank helps underwrite such a deal, it has information about a company that the broader investing public does not have. The bankers who underwrite the deal are not supposed to act on that information or share it with any favored clients, because it would give them an unfair advantage over the public.

The arrangements can also bring accusations of conflicts of interest; banks not only help companies go public or do other deals, they also have units that provide research on the companies. The research is supposed to be impartial, but the banks have a stake in how a company does if it is helping it with underwriting.

According to Galvin's office, a junior analyst in Citigroup's San Francisco office was assigned to help research Facebook. On May 2, the junior analyst sent an email to two employees at the technology website TechCrunch.com, with proprietary information about Citigroup's research on Facebook.

"I am ramping up coverage on FB and thought you guys might like to see how the street is thinking about it (and our estimates)," the junior analyst wrote.

A TechCrunch employee wrote back: "There's no way I can publish this doc from an anonymous source, right?"

A minute later, the junior analyst replied: "My boss would eat me alive."

The analyst and the TechCrunch employee were friends, according to Galvin's office, and had gone to Stanford together.

Citigroup fired the junior analyst in September. The bank told Galvin's office that the junior analyst acted alone. In addition to agreeing to the $2 million fine, Citi also agreed to review its policies for overseeing analysts' communications, and to strengthen compliance training for the analysts.http://profit.ndtv.com/news/international-business/article-citigroup-fined-2-million-over-facebook-ipo-312538?pfrom=home-latest

Monday, October 15, 2012

Twitter for more than just tweeting


How to use Twitter for more than just tweeting

Twitter may limit you to only 140 characters but the add-ons you can get for it are virtually unlimited. ET introduces you to 35 less-known ways that let you do a lot more with your Twitter account.

tweriod.com: Tweriod analyses your tweets and followers to let you know the best time to tweet. Tweeting then will get you more responses/retweets.

tweetwally.com: Here, you can see a page that collates tweets with a particular hashtag or keyword — makes it easy to track a topic on twitter.

twylah.com: Twylah aggregates your tweets and shows links/images tweeted by you on a single web page. Your followers can easily get a glimpse of topics that you tweet about. The service is currently in beta so you have to request an access code.

manageflitter.com: This tool categorises your followers — inactive, no profile pic, spam or by language. Use this information to unfollow the irrlevant ones. You can also schedule tweets.

tweetalarm.com: Get notified (by email) when someone mentions specific keywords on twitter — notifications can be instant, daily or weekly.

monitter.com: Here, you can search for a particular topic or keyword on twitter and sort the results based on the location of the tweeter.

nurph.com: At Nurph, you can create a virtual chat room where followers can tweet-chat with you. You also get a robot assistant that learns from the ongoing conversation and can reply on your behalf.

useqwitter.com: Sign in to Qwitter to find out who unfollowed you. The free version lets you track a single twitter account — it updates weekly.

futuretweets.com: Ever wanted to send automated tweets in the future? Here, you can schedule a tweet for later (day or time). Hint: use it as an alibi.

twit-twoo.net: Create an account & they'll tweet you with reminders for an event or happening. Use it to remind you of anniversaries or to-dos.

splitweet.com: Effortlessly manage multiple twitter accounts with this handy tool. Great for corporate use too.

flashtweet.com: Simply put, FlashTweet allows you to acquire targeted followers. You can also use it to mass follow based on a keyword or location.

twitchamp.com: Like a friendly competition? Compare how you're doing on twitter with your friends. You only need to enter the usernames.

tweetcube.com: Use this free service to share files (up to 10MB) on twitter. You can share any sort of file, but the catch is that it gets deleted in 30 days.

tweetstats.com: Just enter your username here to get detailed stats — tweet density, replies, retweets — it's all there.

tweetwrappr.com: Useless but funny, TweetWrappr lets you 'gift wrap' a tweet and send it to someone as a URL.

visibletweets.com: Just enter a keyword or hashtag and watch as everything gets animated for you in real time.

tweetrans.com: Want to be a global tweeter? Use this tool to send tweets in multiple languages in one step.

tweepsmap.com: Simply shows you where in the world your followers are.

Sunday, October 14, 2012

Telecom's dark horse- IDEA


Telecom's dark horse rises
Idea Cellular has almost doubled market share, made profits & is third-largest operator today
Krishna Kant / Mumbai October 12, 2012, 0:10 IST
There are two ways to win a marathon — either lead the race from the beginning or stay close to the leaders while conserving energy for that final push. Idea Cellular seems to be following the second strategy.
At the time of its initial public offering (IPO) in May 2007, the AV Birla Group company was the seventh-largest mobile operator and such a small player that few noticed it. Five years on, the company has emerged as India’s third-largest mobile operator by revenue and is now in a position to not only survive the current industry upheaval, but to also come out stronger once the dust has settled.Its numbers are irrefutable. Since its IPO, Idea’s revenue market share has nearly doubled to 15 per cent; its revenue has shot up five times to cross Rs 20,000 core during the 12 months ending June and its annualised cash profit is in excess of Rs 4,000 crore — more than enough to meet its recurring capex. Most importantly, it has achieved this without stretching its finances. Idea is currently the least leveraged among its peers despite investing nearly Rs 32,000 in network expansion in the past five years. No wonder, for analysts and industry observers, it is the company to beat.
“The industry has reached an inflection point, with most operators running at losses and reeling under debt. The stage is set for consolidation through a wave of mergers and exits. This is an opportunity for Idea Cellular to further scale up its operations,” says an industry analyst with a leading brokerage who didn’t want to be identified.
In November 2005, when the Birla group company decided to buy out AT&T and the Tatas in order to take over Idea, the company was relatively unknown. At that time, Idea was a regional operator, restricted to just eight circles in Western, Central and Southern India despite being one of the original licensees along with Bharti Airtel and Hutch-Essar (now Vodafone). Idea’s rise since then has been a lesson in corporate financing, project execution, as well as branding and marketing. “We really like the management and their execution abilities. In just a few years, they have transformed Idea from a regional player to a pan-India operator,” says a telecom analyst with a leading brokerage in Mumbai.
“We have analysed the company’s revenue market share (RMS) in detail and note that it has gained RMS in each of its 22 circles in the last three years. Idea remains our top pick to play the improving outlook for the Indian telecom sector,” says a recent report by BNP Paribas. (Click for graphs)
Birla, the game changer
Idea Cellular Managing Director Himanshu Kapania says Aditya Birla Group’s taking control of Idea was the game-changer. “For 10 years, we had three parents but no godfather to provide a clear-cut vision. This was a recipe for failure and, obviously, the company failed to compete,” says Kapania, who re-joined the company in 2006 after it came under the Birla umbrella.
“Our chairman (Kumar Mangalam Birla) prodded us to ask the most obvious question. How do we become one of India’s top operators?” says Kapania. The question made sense as Idea had the backing of one of India’s largest and most cash-rich groups. The rub-off effect began to show in its capex plans. In the first 30 months after the Birlas took control, Idea invested Rs 6,500 crore in expanding its network, one and a half times more than what it invested in the previous 10 years. Its cumulative investment in equipment and network has since jumped by nearly 10 times to around Rs 40,000 crore at the end of FY12 against Rs 4,000 crore at the end of FY05.
Spending billions however doesn’t automatically translate into higher number of subscribers and revenue in the mobile business. Industry experts attribute Idea’s success to its on-ground execution skill and its singular focus on the mobile market. “Idea has done a great job in aligning its strategies and economics to the high growth segments in the market. Additionally, its focus on mobile GSM market has helped align the organisational efforts towards the strategy,” says Mohit Rana, partner and vice-president at AT Kearney India.
Mobile is a capital-intensive business to begin with; it becomes an FMCG business during customer acquisition and ends up as a service industry while retaining and servicing the customers. Given this, operators always run the risk of spreading themselves too thin. And, in the heady days of 2006 and 2007, new entrants always ran the risk of getting into a high-cost war for subscribers. “We had two options then. Either join the race and spend billions to buy subscribers wherever we can get them, or focus on the quality of growth. We chose the latter,” says Kapania. By quality, he means the incremental revenue that each new subscriber brings against the cost of acquiring and servicing her.
Growing smartly
The company knew its limitations and decided to follow a calibrated growth strategy. “We were not democratic in our resource allocation. We over-invested in circles where Idea was strong and could increase its revenue share and under-invested in circles where it was financially prohibitive to get market share,” says Kapania. Specifically speaking, the company focused its attention on its circles in Western, Central, Southern and Northern India and under-invested in Eastern India where it was a late entrant.
Idea is the original licensee in seven circles, namely Andhra Pradesh, Gujarat, Maharashtra, Haryana, Kerala, Madhya Pradesh and Uttar Pradesh (West). The company used its incumbency in these large and economically well-off circles to expand in neighbouring ones. “We grew in concentrating circles, drawing on our strength in our core circles to pull-in customers in adjoining areas,” says Kapania. For example, it used its long-time presence in UP (West) to become one of the top operators in UP (East) with 13 per cent revenue share at the end of FY12, within six years of launch. The company followed a similar strategy in Mumbai where it launched services in 2008. The Mumbai circle has a strong synergy with Idea operations in Maharashtra, Gujarat and Delhi.
The pick and choose model of growth helped Idea Cellular in many ways. First, it helped it in conserving cash. Secondly, it avoided a costly and high-risk competition with national operators and most importantly, didn’t allow the company to spread itself too thin—something that proved costly for ambitious players like Reliance Communication, Tata Indicom and Aircel.
Powerful branding
But what really shifted the tide in Idea’s favour was its branding and marketing campaign. When Idea went national with its new brand campaign in 2005, most others in the category talked about features and various tariff plans and they mostly talked to metro and urban consumers. Idea decided to break the mould. It positioned mobile as a life changing device and began to talk in universal themes. “We always believed in the transformational power of mobile and its potential to change the life of an average Indian,” says Kapania. This is the genesis of the brand punchline – “An Idea can change your life” –and brand campaigns themed on universal themes like caste wars, identity (at the time of the Mumbai launch), saving paper by increasing the usage of mobile, how mobile usage can cut population growth etc.
Talking about these universal themes helped the company to cut through the clutter and convey its message to rural India, where two-third of its subscribers reside. “Among leading operators, we were the last one to enter metros, so we tried to speak in a language that would be relevant to the widest possible audience,” says Kapania.
Not surprisingly, Idea is the only operator among eight new entrants that went national in 2008 to have crossed the “hump” and become a relevant and financially viable operator. The company now expects to raise its share further as it expands it footprint in the circles where its 2G licence was cancelled by the Supreme Court. The company will bid for spectrum in these circles during the November auction. “Currently, we are meaningfully present in just two-thirds of the circles. Our next target is to become a truly national player,” says Kapania.
Obviously, analysts are impressed. “Though we are advising clients to stay away from telecom stocks given the regulatory uncertainty; if an investor still wants an exposure in the sector, we are recommending Idea,” says the telecom analyst at Motilal Oswal Financial Services. Others want the company to come up with a clear strategy to take advantage of the impending consolidation in the industry. “Going forward, Idea needs to decide its role in the industry consolidation,” says Rana. There could not be a better compliment for a company, which didn’t even feature on the radar screens of experts and analysts until three years ago.
Concerns
However, for all its achievement in past few years, Idea is still to deliver meaningful returns to shareholders. “What growth? Idea shares trade at the same level as they were during the IPO. And given the regulatory uncertainty and likely capex on additional spectrum acquisition, nobody knows when it will start delivering,” says an analyst. He is not exaggerating. In FY12, Idea’s return on capital employed (on consolidated basis) was just 8.14 per cent while return on net worth was even lower, at 5.7 per cent. At these return ratios, a shareholder is better off putting money in a bank deposit than investing it in Idea.
Some analysts have begun to worry about the sustainability of the Idea growth engine. “Idea has been overly aggressive in its quest to be the fastest growing company in the sector. It had to pay a price in the form of margin dilution due to this strategy,” says a recent report by Edelwiess.
The management is aware of these issues but seems to be helpless at the moment, given the regulatory headwinds and is asking shareholders to be a little more patient. “It is a matter of time when pricing power returns to telecom operators. Though no one knows the path it will take,” says Kapania.

http://www.businessstandard.com/taketwo/news/telecoms-dark-horse-rises/489351/

Saturday, August 25, 2012

Thursday, August 23, 2012

Saturday, May 5, 2012

NIFTY bearish below 5,130


Wkly Tech Analysis: Bias to remain bearish below 5,130
Among the index stocks, Hero MotoCorp slumped almost 10% to Rs 1,981, and Maruti plunged over 8% to Rs 1,283
Rex Cano / Mumbai May 05, 2012, 23:59 IST

The markets, as expected, began the week with hopes of a counter rally by the bulls. We saw the Sensex touch a high of 17,432, but eventually the gains turned into significant losses by the end of the week as technically the momentum oscillators were not supportive.

The Sensex slumped to a low of 16,777 amid heavy losses in auto, banking and capital goods shares. The BSE benchmark eventually ended the week with a loss of 356 points at 16,831.
Among the index stocks, Hero MotoCorp slumped almost 10 per cent to Rs 1,981, and Maruti plunged over 8 per cent to Rs 1,283. BHEL, Tata Steel, State Bank of India, Coal India, Bajaj Auto and Larsen & Toubro were the other major losers. On the other hand, TCS surged over 6 per cent to Rs 1,278. Cipla and Hindustan Unilever were the other prominent gainers, up around 4.5 per cent each.

According to the monthly Fibonacci charts, Sensex has near support around 16,700, a break below which could see the index dip towards the quarterly support level, which is around 16,200. The yearly chart also indicates some support around 16,670-odd levels. On the upside, the Sensex needs to sustain above 16,980.
Next week, the Sensex may seek support around 16,580-16,425, while it may face resistance around 17,080-17,240.
The NSE Nifty moved in a range of over 200 points. The index touched a high of 5,280, and then tumbled to a low of 5,071. The index finally settled with a significant loss of 122 points at 5,209.
The Nifty has broken below its 200-day DMA (daily moving average) on the daily charts after more than three months. The momentum oscillators continue to remain fairly bearish, hence we may see some more losses going ahead.
Select key momentum oscillators like the MACD and Stochastic Slow are both negative, on the daily and weekly charts, hence chances of a further downside are higher.
The near-term bias is likely to be negative as long as Nifty remains below 5,130 — which is the lower end of the Bollinger Band. The nearest support for Nifty is at 5,020, below which we could see fresh weakness with the next major support at 4,835.
On the positive front, if the Nifty is able to sustain above 5,130, then we could see a counter rally all the way up to 5,290-odd levels.
Next week, the Nifty is likely to seek support around 5,005-4,960, while it may face resistance around 5,165-5,215.

Saturday, March 10, 2012

SUCCESS A WAY OF LIFE

11 MAR, 2012, 10.38AM IST,

Lesson's from AM Naik and L&T's leadership change

Managing leadership succession is very challenging for all organisations, tougher for more complex entities. Unfortunately, in several cases, neither the incumbent nor the board wakes up to address this challenge early on.

Typically, in their hurry to grow the organisation, they either forget or do not devote adequate attention to such a strategically important matter before it becomes a crisis. The leadership change at L&T has attracted a lot of attention precisely for the same reason. There are several lessons from this experience.

Every Lap Counts

Leadership succession is like a relay race. Choice of the runners for each lap depends on the challenges ahead, the first and last runners being the fastest. There has to be adequate preparation and perfect understanding between runners about the timing of passing the baton.

The person handing over the baton should feel confident that the person receiving it has caught hold of it. The two runners have to have perfect understanding between them about each other. In a well-trained context, this happens in split seconds. Played out in slow motion, the same thing happens in leadership succession in corporations.

In this highly professionalised organisation, the board and management have always been aware of the need for finding a successor to Mr Naik, who is already 70. In fact, media reports that appeared about two years ago had described the dilemma that the company was going to face.

It is unfortunate that the board did not do much then or earlier about choosing the runner for the next lap with all the appropriate capabilities, and prepare the ground for a smooth change over. This was in spite of the fact that the entire team of executive directors was over 60 then!

Start Early

The board should have started the process of identifying the successor at least five years back with a definite deadline, and intensified the search especially when it was clear then itself that there was no obvious choice available.

The company would have been better off with a younger top leadership to steer the organisation to achieve the 25 percent compound growth planned in the next several years. Such an approach would have guaranteed smooth transition of leadership at L&T, with an over lapping phase for the baton change to be trouble free.

Doubles Game

The current decision to split the responsibilities between chairman and managing director appears to be a convenient decision. The new duo of chairman and MD/CEO is going to face sharing the responsibilities of shaping the destiny of the organisation. It may not be easy for the new entrant to flourish when Mr Naik's shadow continues to loom large as the executive chairman.

Given that Mr Naik and Mr Venkatraman will play a doubles game for the next five years, it is critical for them both as well as the board to objectively discuss the roles they will actually play independently and jointly. The new MD should not become a figure head

Prepare Next Runner

Mr Naik has built L&T into a giant organisation, fighting several odds. He has a larger than life image. In such a scenario, it is for the incumbent to remind himself of the trusteeship role he is playing and prepare the organisation for the next leader. It appears that Mr Naik did not do it early enough.

By asking Mr Naik to continue as the executive chairman, the board has signalled its lack of preparedness for a change which is inevitable for anyone. Many leaders in business and politics do not believe that their time for retirement would ever come; they tend to think that they alone are capable of running subsequent laps. They do not recognise the need to prepare the next lap runner early on. Mr Naik and the board failed in their trusteeship responsibility.

Insecurity of Retirement

The longer a leader stays and the bigger the success, the greater is likely to be the challenge for his departure. Individual egos play a dominant role in refusing to accept realities. This is where some of the basic teachings of this country such as detachment, contentment and feeling of duty become all the more helpful. This is when leaders show their maturity.

National Institution

L&T is a national institution, respected and regarded for its professionalism by multiple stakeholders. The top team, representing all the stakeholders has a responsibility to ensure that it starts preparing for the next lap runner now itself. As trustees, they have to constantly remind themselves that no individual is indispensable.


(The author is Thomas Schmidheiny Chair Professor of Family Business & Wealth Management, Indian School